/* ============================================
   MODERN PORTFOLIO - CSS DESIGN SYSTEM (PREMIUM)
   ============================================ */

/* === CSS VARIABLES === */
:root {
    /* Colors - Deep Navy/Rich Gold Theme */
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;

    /* Glassmorphism Backgrounds */
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-hover: rgba(255, 255, 255, 0.9);
    --border-glass: rgba(255, 255, 255, 0.5);

    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-light: #f8fafc;
    --text-dark: #020617;

    /* Accents */
    --accent-primary: #2563eb;
    /* Brighter Blue for better contrast */
    --accent-dark: #1e3a8a;
    /* Deep Navy */
    --accent-secondary: #d97706;
    /* Gold */
    --accent-glow: rgba(37, 99, 235, 0.2);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    --gradient-text: linear-gradient(135deg, #1e3a8a 0%, #d97706 100%);
    --gradient-bg: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    --gradient-subtle: linear-gradient(120deg, #fdfbfb 0%, #ebedee 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-primary: 'Poppins', sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-hero: clamp(3rem, 8vw, 5rem);

    /* Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 20px var(--accent-glow);

    --backdrop-blur: blur(12px);

    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);

    --border-radius: 24px;
    --border-radius-sm: 12px;
}

/* === DARK MODE VARIABLES === */
body.dark-mode {
    --bg-primary: #0f172a;
    /* Deep Slate/Navy */
    --bg-secondary: #1e293b;
    /* Lighter Slate */
    --bg-glass: rgba(30, 41, 59, 0.7);
    --bg-glass-hover: rgba(30, 41, 59, 0.9);
    --border-glass: rgba(255, 255, 255, 0.1);

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-light: #e2e8f0;
    --text-dark: #f1f5f9;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.5);
}

/* === THEME TOGGLE BUTTON === */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: var(--spacing-md);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(15deg);
}

body.dark-mode .theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(at 0% 0%, rgba(37, 99, 235, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(217, 119, 6, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(37, 99, 235, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(217, 119, 6, 0.1) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-secondary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-dark);
    line-height: 1.2;
    font-weight: 700;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* === UTILITIES === */
.glass {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--border-glass);
}

/* === ANIMATIONS === */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes pulse-glow {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
    }
}

@keyframes gradient-move {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Delays */
.delay-100 {
    transition-delay: 100ms;
}

.delay-150 {
    transition-delay: 150ms;
}

.delay-200 {
    transition-delay: 200ms;
}

.delay-250 {
    transition-delay: 250ms;
}

.delay-300 {
    transition-delay: 300ms;
}

.delay-350 {
    transition-delay: 350ms;
}

.delay-400 {
    transition-delay: 400ms;
}

.delay-450 {
    transition-delay: 450ms;
}

.delay-500 {
    transition-delay: 500ms;
}

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md) 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar.scrolled {
    padding: var(--spacing-sm) 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1001;
    margin-right: var(--spacing-xl);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.5);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: var(--transition-base);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 20px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
    z-index: 1001;
}

/* === HERO SECTION === */
.hero {
    padding: 180px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    animation: float 10s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -10%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(217, 119, 6, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    animation: float 8s ease-in-out infinite reverse;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-greeting {
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-heading);
    display: inline-block;
    padding: 0.25rem 1rem;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50px;
}

.hero-title {
    font-size: var(--font-size-hero);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.03em;
    color: var(--text-dark);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    cursor: pointer;
    font-family: var(--font-heading);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: var(--shadow-md);
    border: none;
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid #e2e8f0;
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(37, 99, 235, 0.05);
    transform: translateY(-3px);
}

.btn-resume {
    background: white;
    color: var(--text-primary);
    border: 1px solid #e2e8f0;
    box-shadow: var(--shadow-sm);
}

.btn-resume:hover {
    border-color: var(--accent-secondary);
    color: var(--accent-secondary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.hero-image-wrapper {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: rotate(2deg);
    transition: var(--transition-smooth);
    border: 8px solid rgba(255, 255, 255, 0.8);
    animation: float 6s ease-in-out infinite;
}

.hero-image-wrapper:hover {
    transform: rotate(0deg) scale(1.02);
}

/* === SECTIONS GENERAL === */
section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-title {
    font-size: var(--font-size-3xl);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    display: block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-xs) auto 0;
    border-radius: 2px;
}

/* === ABOUT SECTION === */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-lead {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    text-align: center;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.about-lead strong {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* About Highlight Cards */
.about-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.about-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
    background: var(--bg-glass-hover);
}

.about-card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.about-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.about-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-cta {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.about-cta a {
    color: var(--accent-primary);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: var(--transition-base);
}

.about-cta a:hover {
    border-bottom-color: var(--accent-primary);
}

.about-highlights {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    display: grid;
    gap: 0.75rem;
}

.about-highlights li {
    position: relative;
    padding-left: 1.75rem;
    font-size: var(--text-md);
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-highlights li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
    font-size: 1.1em;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 1px solid var(--border-glass);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    background: var(--bg-glass-hover);
    border-color: var(--accent-primary);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-heading);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === SKILLS SECTION === */
.skills-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.skill-box {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: var(--spacing-xl) var(--spacing-lg);
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.skill-box:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.skill-box-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid rgba(37, 99, 235, 0.15);
}

.skill-box-icons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    justify-items: center;
}

.skill-icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    cursor: default;
    transition: var(--transition-base);
    padding: 0.5rem;
    border-radius: 10px;
}

.skill-icon-item:hover {
    transform: translateY(-4px);
    background: rgba(37, 99, 235, 0.05);
}

.skill-icon-item i {
    font-size: 2.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(100%);
    opacity: 0.55;
}

/* Dark mode: lighten greyscale icons so they're visible */
body.dark-mode .skill-icon-item i {
    filter: grayscale(100%) brightness(2.5) contrast(0.6);
    opacity: 0.5;
}

.skill-icon-item:hover i {
    filter: grayscale(0%) !important;
    opacity: 1 !important;
    transform: scale(1.15);
}


.custom-skill-svg {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--accent-primary);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(100%);
    opacity: 0.55;
}

body.dark-mode .custom-skill-svg {
    filter: grayscale(100%) brightness(2.5) contrast(0.6);
    opacity: 0.5;
}

.skill-icon-item:hover .custom-skill-svg {
    filter: grayscale(0%) !important;
    opacity: 1 !important;
    transform: scale(1.15);
}


.custom-skill-img {
    width: 2.5rem;
    height: 2.5rem;
    object-fit: contain;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(100%);
    opacity: 0.55;
}

body.dark-mode .custom-skill-img {
    filter: grayscale(100%) brightness(3) contrast(0.5);
    opacity: 0.5;
}

.skill-icon-item:hover .custom-skill-img {
    filter: grayscale(0%) !important;
    opacity: 1 !important;
    transform: scale(1.15);
}

.skill-icon-item span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-align: center;
    transition: var(--transition-base);
    white-space: nowrap;
}

.skill-icon-item:hover span {
    color: var(--text-primary);
    font-weight: 600;
}

/* Dark mode box styles */
body.dark-mode .skill-box {
    background: var(--bg-glass);
    border-color: var(--border-glass);
}

body.dark-mode .skill-box:hover {
    background: var(--bg-glass-hover);
    border-color: var(--accent-primary);
}

body.dark-mode .skill-icon-item:hover {
    background: rgba(37, 99, 235, 0.15);
}

/* Mobile: stack boxes vertically */
@media (max-width: 768px) {
    .skills-cards-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .skill-icon-item i {
        font-size: 2rem;
    }

    .skill-icon-item span {
        font-size: 0.7rem;
    }
}

/* Tablet: 2 columns */


/* === EXPERIENCE & EDUCATION CARDS === */
/* Experience Grid */
.experience-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.experience-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    border: 1px solid var(--border-glass);
    border-left: 5px solid var(--accent-primary);
}

.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    background: var(--bg-glass-hover);
    border-left-color: var(--accent-dark);
}

.exp-header {
    display: flex;
    
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.exp-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 16px;
    background-color: white;
    padding: 8px;
    border: 1px solid #f1f5f9;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.exp-title-group {
    flex: 1;
}

.exp-title {
    font-size: var(--font-size-xl);
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.exp-company {
    font-weight: 600;
    color: var(--accent-primary);
    font-size: var(--font-size-base);
    margin-bottom: 0.25rem;
}

.exp-date {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.exp-highlights {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-md);
}

.exp-highlights li {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.exp-highlights li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Education Grid */
.education-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.education-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    border: 1px solid var(--border-glass);
    border-left: 5px solid var(--accent-secondary);
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    background: var(--bg-glass-hover);
    border-left-color: #b45309;
}

.edu-header {
    display: flex;
    
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.edu-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 16px;
    background-color: white;
    padding: 8px;
    border: 1px solid #f1f5f9;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.edu-title-group {
    flex: 1;
}

.edu-title {
    font-size: var(--font-size-xl);
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.edu-institution {
    font-weight: 600;
    color: var(--accent-secondary);
    font-size: var(--font-size-base);
    margin-bottom: 0.25rem;
}

.edu-date {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.edu-coursework {
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

.edu-coursework strong {
    color: var(--text-dark);
}

/* === PROJECTS SECTION === */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    
}

@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

.project-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    border: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-xl);
    background: var(--bg-glass-hover);
}

.project-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
    line-height: 1.6;
}



.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.tech-tag {
    font-size: 0.75rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-primary);
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    font-weight: 600;
    transition: var(--transition-base);
}

.project-card:hover .tech-tag {
    background: var(--accent-primary);
    color: white;
}

.project-links {
    margin-top: auto;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.project-link {
    font-weight: 600;
    color: var(--accent-primary);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    color: var(--accent-dark);
    transform: translateX(5px);
}

/* === CERTIFICATIONS SECTION === */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.certification-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    border: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.certification-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    background: var(--bg-glass-hover);
    border-color: var(--accent-primary);
}

.cert-header {
    display: flex;
    
    gap: var(--spacing-md);
}

.cert-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: 12px;
    background-color: white;
    padding: 8px;
    border: 1px solid #f1f5f9;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.cert-title-group {
    flex: 1;
}

.cert-title {
    font-size: var(--font-size-lg);
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.cert-issuer {
    color: var(--accent-primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.cert-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.cert-date,
.cert-id {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.cert-skills .skill-tag {
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
}

.cert-link {
    align-self: flex-start;
    font-weight: 600;
    color: var(--accent-primary);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition-base);
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.cert-link:hover {
    color: white;
    background: var(--accent-primary);
    transform: translateX(3px);
}

/* === PUBLICATIONS & AWARDS === */
.publication-card,
.award-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-glass);
    transition: var(--transition-base);
    cursor: pointer;
}

.publication-card {
    border-left: 5px solid var(--accent-secondary);
    max-width: 900px;
    margin: 0 auto;
}

.publication-card:hover,
.award-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: var(--bg-glass-hover);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

.award-card {
    padding: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.award-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.award-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.award-card:hover .award-image img {
    transform: scale(1.1);
}

.award-content {
    padding: var(--spacing-lg);
}

.award-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.award-meta {
    font-size: var(--font-size-sm);
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === TESTIMONIALS SECTION === */
.testimonials-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-top: calc(-1 * var(--spacing-md));
    margin-bottom: var(--spacing-2xl);
    font-style: italic;
}

/* Carousel wrapper for centering */
.carousel-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

/* Carousel container with navigation buttons */
.carousel-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    position: relative;
}

/* Carousel viewport */
.testimonials-carousel {
    overflow: hidden;
    flex: 1;
    border-radius: var(--border-radius);
}

/* Testimonials track - horizontal scroll container */
.testimonials-track {
    display: grid;
    grid-template-columns: repeat(4, 100%);
    gap: 0;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}


.testimonial-card {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-glass);
    transition: var(--transition-base);
    position: relative;
    overflow: visible;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    background: var(--bg-glass-hover);
    border-color: var(--accent-primary);
}

.quote-icon {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 6rem;
    font-family: Georgia, serif;
    color: var(--accent-primary);
    opacity: 0.1;
    line-height: 1;
    z-index: 0;
    pointer-events: none;
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid white;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
    transition: var(--transition-base);
}

.testimonial-card:hover .testimonial-avatar {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.testimonial-info {
    flex: 1;
    min-width: 0;
}

.testimonial-name-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.testimonial-name {
    font-size: var(--font-size-lg);
    color: var(--text-dark);
    margin: 0;
    font-weight: 700;
}

.testimonial-linkedin {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-primary);
    transition: var(--transition-base);
    flex-shrink: 0;
}

.testimonial-linkedin:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.testimonial-linkedin svg {
    width: 18px;
    height: 18px;
}

.testimonial-role {
    font-size: var(--font-size-sm);
    color: var(--accent-primary);
    font-weight: 600;
    line-height: 1.4;
    margin: 0;
}

.testimonial-meta {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 500;
    position: relative;
    z-index: 1;
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.testimonial-text {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.8;
    position: relative;
    z-index: 1;
    text-align: left;
    max-height: none;
    overflow: hidden;
    transition: max-height 0.5s ease;
}

.testimonial-text.collapsed {
    max-height: 120px;
    position: relative;
}

.testimonial-text.collapsed::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--bg-glass));
    pointer-events: none;
}

.show-more-btn {
    background: transparent;
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    margin-top: var(--spacing-sm);
    align-self: flex-start;
    position: relative;
    z-index: 1;
}

.show-more-btn:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.show-more-btn:active {
    transform: translateY(0);
}

/* Dark mode adjustments for testimonials */
body.dark-mode .testimonial-avatar {
    border-color: var(--bg-secondary);
}

body.dark-mode .testimonial-meta {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode .testimonial-card:hover .testimonial-avatar {
    border-color: var(--accent-primary);
}

/* === CAROUSEL CONTROLS === */
.carousel-btn {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    color: var(--accent-primary);
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.carousel-btn:hover:not(:disabled) {
    background: var(--accent-primary);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.carousel-btn svg {
    width: 24px;
    height: 24px;
}

/* Carousel indicators */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.indicator-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-muted);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    opacity: 0.3;
    padding: 0;
}

.indicator-dot:hover {
    opacity: 0.6;
    transform: scale(1.2);
}

.indicator-dot.active {
    background: var(--accent-primary);
    opacity: 1;
    width: 32px;
    border-radius: 6px;
}


/* === CONTACT SECTION === */
.contact-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl) auto;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;
}

/* Contact Information Card (Left Side) */
.contact-info-card {
    background: var(--gradient-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.contact-info-card::before {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.contact-info-card h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 0.75rem;
    color: white;
    font-weight: 700;
}

.info-subtitle {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.info-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    flex-shrink: 0;
}

.info-icon svg {
    stroke: white;
}

.info-item span {
    color: white;
    font-size: var(--font-size-sm);
    word-break: break-word;
}

/* Social Links in Card */
.card-social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.card-social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    transition: var(--transition-base);
}

.card-social-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.card-social-link svg {
    fill: white;
}

/* Contact Form Wrapper (Right Side) */
.contact-form-wrapper {
    background: var(--bg-glass);
    backdrop-filter: var(--backdrop-blur);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-glass);
}

.contact-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.form-full {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: var(--font-size-sm);
}

.form-group .optional {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.85rem;
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    color: #1e293b !important;
    background: white;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #94a3b8 !important;
}

.form-submit-btn {
    grid-column: 1 / -1;
    width: auto;
    padding: 1rem 2.5rem;
    font-size: var(--font-size-base);
    cursor: pointer;
    background: var(--gradient-primary);
    border: none;
    color: white;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-base);
    justify-self: start;
    box-shadow: var(--shadow-md);
}

.form-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Contact Divider */
.contact-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.contact-divider::before,
.contact-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-glass);
}

.contact-divider span {
    padding: 0 var(--spacing-md);
}

/* Schedule Call Button */
.schedule-call-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.schedule-call-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.schedule-call-btn:active {
    transform: translateY(0);
}

.schedule-call-btn svg {
    flex-shrink: 0;
}

/* === FOOTER === */
.footer {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: white;
    border-top: 1px solid #e2e8f0;
    margin-top: var(--spacing-3xl);
}

.footer-text {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* === SCROLL TO TOP === */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--accent-dark);
    transform: translateY(-5px);
}

/* === LIGHTBOX === */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.lightbox-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 900px;
    border-radius: 8px;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    animation: zoom 0.6s;
}

@keyframes zoom {
    from {
        transform: scale(0)
    }

    to {
        transform: scale(1)
    }
}

.close-lightbox {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.close-lightbox:hover,
.close-lightbox:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

#caption {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
    text-align: center;
    color: #ccc;
    padding: 10px 0;
    height: 150px;
    font-size: 1.2rem;
    margin-top: 1rem;
}

/* === DARK MODE OVERRIDES === */
body.dark-mode .skill-tag,
body.dark-mode .btn-resume,
body.dark-mode .social-link,
body.dark-mode .company-logo {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-glass);
}

body.dark-mode .skill-tag:hover,
body.dark-mode .btn-resume:hover,
body.dark-mode .social-link:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

body.dark-mode .footer {
    background: var(--bg-primary);
    border-top-color: var(--border-glass);
}

body.dark-mode .contact-item {
    background: var(--bg-glass);
    border-color: var(--border-glass);
}

body.dark-mode .contact-item:hover {
    background: var(--bg-glass-hover);
    border-color: var(--accent-primary);
}

/* === MEDIA QUERIES === */
@media (max-width: 768px) {
    :root {
        --font-size-hero: 3rem;
        --spacing-3xl: 4rem;
    }

    .navbar .container {
        padding: 0 var(--spacing-md);
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 80%;
        max-width: 300px;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition-smooth);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        border-radius: 0;
        border: none;
    }

    .nav-links.active {
        right: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-image-wrapper {
        max-width: 300px;
        margin: 0 auto;
    }

    /* Carousel responsive: 1 card per view on mobile */
    .testimonials-track {
        grid-template-columns: repeat(4, 100%);
    }

    .carousel-btn {
        width: 50px;
        height: 50px;
    }

    .carousel-btn svg {
        width: 20px;
        height: 20px;
    }

    .carousel-container {
        gap: var(--spacing-sm);
    }

    /* Certifications responsive */
    .certifications-grid {
        grid-template-columns: 1fr;
    }

    .certification-card {
        max-width: 100%;
    }

    /* Contact Section Responsive */
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .contact-info-card {
        padding: var(--spacing-xl);
    }

    .contact-form-wrapper {
        padding: var(--spacing-lg);
    }

    .contact-form-grid {
        grid-template-columns: 1fr;
    }

    .form-submit-btn {
        width: 100%;
        justify-self: stretch;
    }

    /* Experience and Education Cards Mobile */
    .experience-grid,
    .education-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .experience-card,
    .education-card {
        padding: var(--spacing-lg);
    }

    /* Projects Grid Mobile */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .project-card {
        padding: var(--spacing-lg);
    }

    /* Section Padding Mobile */
    section {
        padding: var(--spacing-2xl) 0;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    /* Hero Section Mobile */
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    /* About Section Mobile */
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .about-lead {
        font-size: 1.25rem;
    }

    .about-image-wrapper {
        order: -1;
        max-width: 250px;
        margin: 0 auto var(--spacing-xl) auto;
    }

    /* Skills Mobile */
    .skills-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .skill-category {
        padding: var(--spacing-lg);
    }

    .skill-tags {
        gap: var(--spacing-sm);
    }

    .skill-tag {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
    }

    /* Awards Mobile */
    .awards-container {
        grid-template-columns: 1fr;
    }

    /* Testimonial Cards Mobile */
    .testimonial-card {
        padding: var(--spacing-lg);
    }

    .testimonial-avatar {
        width: 50px;
        height: 50px;
    }

    /* Publications Mobile */
    .publication-card {
        padding: var(--spacing-lg);
    }
}

/* Mobile navbar layout fixes */
@media (max-width: 768px) {
    .navbar .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .theme-toggle {
        order: 2;
        margin-left: auto;
        margin-right: 0.5rem;
    }

    .mobile-menu-toggle {
        order: 3;
    }

    .logo {
        order: 1;
    }

    /* Stats grid - 2 columns on mobile */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* ============================================
   VIRTUAL VIK CHATBOT STYLES
   ============================================ */
.chatbot-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
    font-family: var(--font-primary);
}

/* Toggle Button */
.chatbot-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-bounce);
    position: relative;
    z-index: 1001;
    padding: 0;
    /* overflow: hidden; REMOVED to let badge pop out */
}

.chatbot-toggle:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
}

.chatbot-toggle-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
    border-radius: 50%;
    /* Ensure image is round */
}

.chatbot-alert {
    position: absolute;
    top: -2px;
    /* Pop out */
    right: -2px;
    /* Pop out */
    width: 22px;
    height: 22px;
    background: #ef4444;
    /* Bright red for attention */
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 1002;
    /* Above avatar */
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-5px);
    }

    60% {
        transform: translateY(-3px);
    }
}

/* Chatbot Window */
.chatbot-window {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    width: 380px;
    height: 600px;
    background: rgba(255, 255, 255, 0.85);
    /* Light Mode default */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform-origin: bottom right;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 1;
    transform: scale(1);
    visibility: visible;
}

body.dark-mode .chatbot-window {
    background: rgba(30, 41, 59, 0.9);
    border-color: rgba(255, 255, 255, 0.1);
}

.chatbot-window.hidden {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
    visibility: hidden;
    pointer-events: none;
}

/* Header */
.chatbot-header {
    padding: 1.25rem;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #ffffff !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chatbot-title-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chatbot-avatar-container {
    position: relative;
    width: 40px;
    height: 40px;
}

.chatbot-header-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: white;
    /* fallback */
}

.status-dot {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 10px;
    height: 10px;
    background: #22c55e;
    border-radius: 50%;
    border: 2px solid white;
}

.chatbot-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.2;
    color: #ffffff !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.status-indicator {
    font-size: 0.8rem;
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.95) !important;
    font-weight: 500;
}

.chatbot-close-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chatbot-close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Messages Area */
.chatbot-messages {
    flex: 1;
    padding: 1.25rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.5);
}

body.dark-mode .chatbot-messages {
    background: rgba(15, 23, 42, 0.5);
}

.message {
    max-width: 85%;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    animation: messageSlide 0.3s ease-out;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-content {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.5;
    position: relative;
    word-wrap: break-word;
}

.bot-message {
    align-self: flex-start;
}

.bot-message .message-content {
    background: white;
    color: var(--text-primary);
    border-bottom-left-radius: 2px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

body.dark-mode .bot-message .message-content {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.user-message {
    align-self: flex-end;
}

.user-message .message-content {
    background: var(--accent-primary);
    color: white;
    border-bottom-right-radius: 2px;
}

.message-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-left: 0.25rem;
}

.user-message .message-time {
    align-self: flex-end;
    margin-right: 0.25rem;
}

.chatbot-contact-link {
    display: inline-block;
    margin-top: 0.5rem;
    color: var(--accent-primary);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.85rem;
}

.chatbot-contact-link:hover {
    text-decoration: underline;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    border-bottom-left-radius: 2px;
    width: fit-content;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    margin-bottom: 1rem;
}

body.dark-mode .typing-indicator {
    background: var(--bg-secondary);
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typingBounce {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

/* Suggestions */
.chatbot-suggestions {
    padding: 0.75rem 1.25rem;
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(5px);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

body.dark-mode .chatbot-suggestions {
    background: rgba(15, 23, 42, 0.8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.chatbot-suggestions::-webkit-scrollbar {
    display: none;
}

.suggestion-chip {
    white-space: nowrap;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-primary);
    border: 1px solid rgba(37, 99, 235, 0.2);
    font-size: 0.8rem;
    cursor: pointer;
    transition: 0.2s;
    font-family: var(--font-primary);
}

body.dark-mode .suggestion-chip {
    background: rgba(37, 99, 235, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(37, 99, 235, 0.3);
}

.suggestion-chip:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-1px);
}

/* Input Area */
.chatbot-input-area {
    padding: 1rem 1.25rem;
    background: rgb(248, 250, 252);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

body.dark-mode .chatbot-input-area {
    background: #0f172a;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

#chatbot-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border-radius: 24px;
    border: 1px solid var(--border-glass);
    background: white;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    outline: none;
    transition: 0.2s;
}

body.dark-mode #chatbot-input {
    background: #1e293b;
    border-color: rgba(255, 255, 255, 0.1);
}

#chatbot-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.chatbot-send-btn {
    width: 40px;
    min-width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-primary);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.2s;
    flex-shrink: 0;
}

.chatbot-send-btn:hover:not(:disabled) {
    background: var(--accent-dark);
    transform: scale(1.05);
}

.chatbot-send-btn:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.7;
}

/* Mobile Responsive - Chatbot */
@media (max-width: 768px) {
    .chatbot-window {
        bottom: 0;
        right: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
        z-index: 10000;
    }

    .chatbot-input-area {
        padding: 0.75rem 1rem;
        padding-bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
        gap: 0.5rem;
    }

    .chatbot-send-btn {
        width: 38px;
        min-width: 38px;
        height: 38px;
    }

    #chatbot-input {
        padding: 0.65rem 0.9rem;
        font-size: 0.88rem;
        min-width: 0;
    }

    .chatbot-suggestions {
        padding: 0.5rem 0.75rem;
    }

    .suggestion-chip {
        padding: 0.35rem 0.7rem;
        font-size: 0.78rem;
    }

    /* Hide the toggle button when chat is open on mobile */
    .chatbot-container.chatbot-open .chatbot-toggle {
        display: none;
    }

    .chatbot-container {
        bottom: 1.5rem;
        right: 1.5rem;
        z-index: 9999;
    }
}
/* Project Features List */
.project-features {
    margin-top: 8px;
    padding-left: 20px;
    list-style-type: disc;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.project-features li {
    margin-bottom: 6px;
    line-height: 1.5;
}
.project-features strong {
    color: var(--text-dark);
}