/* CSS Design System for Jeet Karkar's Digital Portfolio */

:root {
    /* Color Palette */
    --bg-primary: #080b11;
    --bg-secondary: #0f1420;
    --bg-card: rgba(18, 24, 38, 0.65);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-color-glow: rgba(0, 242, 254, 0.25);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-cyan: #00f2fe;
    --accent-orange: #ff7a00;
    --accent-blue: #3b82f6;
    
    --gradient-cyan: linear-gradient(135deg, #00f2fe, #4facfe);
    --gradient-orange: linear-gradient(135deg, #ff7a00, #ff5100);
    --gradient-dark: linear-gradient(135deg, #1e293b, #0f172a);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
    
    /* Layout & Spacing */
    --container-max-width: 1100px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
}

/* Reset & Global Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

html, body {
    width: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
}

h1, h2, h3, h4, .logo, .stat-num {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
}

/* Background Grid & Glowing Orbs */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center center;
    z-index: -2;
    pointer-events: none;
    opacity: 0.8;
}

.glow-orb {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(140px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.12;
    mix-blend-mode: screen;
    animation: floatOrb 20s infinite alternate ease-in-out;
}

#orb-1 {
    background: var(--accent-cyan);
    top: -150px;
    left: -150px;
}

#orb-2 {
    background: var(--accent-orange);
    bottom: -150px;
    right: -150px;
    animation-delay: -10s;
}

@keyframes floatOrb {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(80px, 50px) scale(1.15); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Navigation Header styling */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(8, 11, 17, 0.75);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    background: rgba(8, 11, 17, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 15px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    padding: 5px 0;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cyan);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.btn-nav {
    background: var(--gradient-cyan);
    color: #000;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 20px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.25);
    transition: var(--transition-smooth);
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4);
    color: #000;
}

.btn-nav::after {
    display: none;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.mobile-nav-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* Content Wrapper */
.content-wrapper {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 100px 24px 60px;
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--gradient-cyan);
    color: #000;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 242, 254, 0.35);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color-glow);
    backdrop-filter: blur(5px);
}

.btn-secondary:hover {
    background: rgba(0, 242, 254, 0.05);
    border-color: var(--accent-cyan);
    transform: translateY(-3px);
}

/* Hero Section layout */
.hero-section {
    min-height: calc(100vh - 180px);
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 60px;
    padding: 40px 0;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.badge {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid var(--border-color-glow);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    max-width: 100%;
    text-align: center;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-cyan);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-content h1 {
    font-size: 54px;
    line-height: 1.1;
    margin-bottom: 12px;
    letter-spacing: -1.5px;
    background: linear-gradient(to right, #fff 40%, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.typing-text {
    font-size: 20px;
    color: var(--accent-cyan);
    height: 30px;
    margin-bottom: 24px;
    font-weight: 500;
}

.text-cursor {
    display: inline-block;
    width: 2px;
    height: 18px;
    background-color: var(--accent-cyan);
    margin-left: 4px;
    animation: cursorBlink 0.8s infinite;
}

@keyframes cursorBlink {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 35px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Interactive NFC Card styling */
.card-container {
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    overflow: hidden;
}

.nfc-card {
    position: relative;
    width: 100%;
    max-width: 320px;
    height: 200px;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
}

.nfc-card.flipped {
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
}

.card-front {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
    backdrop-filter: blur(10px);
}

.card-front::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, rgba(0, 242, 254, 0.1), transparent 50%);
    border-radius: 16px;
    pointer-events: none;
}

.card-header-nfc {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nfc-chip {
    width: 40px;
    height: 30px;
    background: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 100%);
    border-radius: 6px;
    position: relative;
}

.nfc-chip::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 8px;
    width: 24px;
    height: 22px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.nfc-signal {
    font-size: 20px;
    color: var(--accent-cyan);
    opacity: 0.8;
}

.card-body-nfc h3 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.card-body-nfc p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.specialty-badge {
    background: rgba(255, 122, 0, 0.12);
    border: 1px solid rgba(255, 122, 0, 0.25);
    color: var(--accent-orange);
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-footer-nfc {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-muted);
}

.tap-hint i {
    animation: bounceRight 1s infinite alternate;
}

@keyframes bounceRight {
    0% { transform: translateX(0); }
    100% { transform: translateX(4px); }
}

.card-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    color: var(--accent-cyan);
}

/* Card Back */
.card-back {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(8, 11, 17, 0.98));
    transform: rotateY(180deg);
    align-items: center;
    text-align: center;
    justify-content: space-between;
}

.card-back h3 {
    font-size: 16px;
    color: #fff;
}

.card-back p {
    font-size: 12px;
    color: var(--text-secondary);
}

.qr-code-wrapper {
    background: white;
    padding: 8px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.15);
    display: flex;
    justify-content: center;
    align-items: center;
}

.qr-code-img {
    display: block;
    width: 84px;
    height: 84px;
    border-radius: 4px;
}


.qr-subtext {
    font-size: 10px !important;
    color: var(--text-muted) !important;
}

/* Stats Highlights */
.container-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0 80px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-smooth);
}

.stat-card:hover {
    border-color: var(--border-color-glow);
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 242, 254, 0.05);
}

.stat-icon {
    font-size: 26px;
    color: var(--accent-cyan);
    background: rgba(0, 242, 254, 0.06);
    width: 54px;
    height: 54px;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 24px;
    color: #fff;
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Sections Layout */
.section-layout {
    margin-bottom: 90px;
}

.section-header {
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.section-header h2 {
    font-size: 28px;
    letter-spacing: -0.5px;
    color: #fff;
}

.header-line {
    flex-grow: 1;
    height: 1px;
    background: linear-gradient(to right, var(--border-color-glow), transparent);
}

/* About Grid & Profile Photo styling */
.about-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 50px;
    align-items: center;
}

.about-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-frame {
    position: relative;
    width: 280px;
    height: 380px;
    border-radius: 16px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
    filter: grayscale(10%) brightness(95%);
    transition: var(--transition-smooth);
}

.profile-frame:hover .profile-img {
    filter: grayscale(0%) brightness(100%);
    transform: scale(1.02);
}

/* Sci-fi Industrial Corners for Frame */
.frame-corner {
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid var(--accent-cyan);
}

.top-left-c { top: -2px; left: -2px; border-right: none; border-bottom: none; }
.top-right-c { top: -2px; right: -2px; border-left: none; border-bottom: none; }
.bottom-left-c { bottom: -2px; left: -2px; border-right: none; border-top: none; }
.bottom-right-c { bottom: -2px; right: -2px; border-left: none; border-top: none; }

.about-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 18px;
}

.about-quote {
    background: linear-gradient(135deg, rgba(255, 122, 0, 0.05), rgba(15, 23, 42, 0.6));
    border: 1px solid rgba(255, 122, 0, 0.15);
    padding: 30px;
    border-radius: 12px;
    position: relative;
}

.quote-icon {
    font-size: 30px;
    color: var(--accent-orange);
    opacity: 0.3;
    position: absolute;
    top: 15px;
    left: 20px;
}

.about-quote p {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.6;
    padding-left: 20px;
    position: relative;
    z-index: 1;
}

/* Education & Experience Switcher Timeline */
.toggle-container {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.toggle-btn {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 8px;
}

.toggle-btn.active {
    background: var(--gradient-cyan);
    color: #000;
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
}

.timeline-wrapper {
    display: none;
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 30px;
}

.timeline-wrapper.active {
    display: block;
    animation: fadeInUp 0.5s ease forwards;
}

.timeline-wrapper::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 5px;
    bottom: 5px;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-cyan), var(--border-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -31px;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
    border: 2px solid var(--bg-primary);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}

.timeline-header h3 {
    font-size: 18px;
    color: #fff;
}

.timeline-date {
    font-size: 13px;
    color: var(--accent-cyan);
    background: rgba(0, 242, 254, 0.06);
    border: 1px solid var(--border-color-glow);
    padding: 3px 10px;
    border-radius: 20px;
}

.timeline-body p {
    color: var(--text-secondary);
    font-size: 14px;
}

.timeline-body ul {
    list-style: none;
}

.timeline-body li {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.timeline-body li i {
    color: var(--accent-cyan);
    font-size: 12px;
    margin-top: 4px;
}

/* Skills Grid Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.skill-category-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    transition: var(--transition-smooth);
}

.skill-category-card:hover {
    border-color: var(--border-color-glow);
    box-shadow: 0 15px 35px rgba(0, 242, 254, 0.03);
}

.category-icon {
    font-size: 28px;
    color: var(--accent-cyan);
    margin-bottom: 15px;
}

.skill-category-card h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: rgba(0, 242, 254, 0.05);
    border-color: var(--accent-cyan);
    color: #fff;
    transform: translateY(-2px);
}

/* Projects Upgraded with Images */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    border-color: rgba(255, 122, 0, 0.3);
    transform: translateY(-6px);
    box-shadow: 0 15px 35px rgba(255, 122, 0, 0.04);
}

.project-img-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-img {
    transform: scale(1.06);
}

.project-card-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    justify-content: space-between;
}

.project-icon-top {
    font-size: 32px;
    color: var(--accent-orange);
    padding: 24px 24px 0;
}

.project-card h3 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 12px;
}

.project-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tags span {
    font-size: 11px;
    color: var(--accent-orange);
    background: rgba(255, 122, 0, 0.06);
    border: 1px solid rgba(255, 122, 0, 0.15);
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 600;
}

/* Goals Grid Section */
.goals-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.goal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    display: flex;
    gap: 20px;
    transition: var(--transition-smooth);
}

.goal-card:hover {
    border-color: var(--border-color-glow);
    transform: translateY(-4px);
}

.goal-icon {
    font-size: 24px;
    color: var(--accent-cyan);
    background: rgba(0, 242, 254, 0.06);
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.goal-content h3 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 8px;
}

.goal-content p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Contact Grid Section Layout */
.contact-sub {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 15px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
}

.contact-button {
    text-decoration: none;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 16px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    transition: var(--transition-smooth);
    color: var(--text-primary);
}

.icon-wrap {
    font-size: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-smooth);
}

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-text span {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-text strong {
    font-size: 12px;
    font-weight: 600;
}

/* Customized Contact States */
.contact-button.call .icon-wrap { background: rgba(59, 130, 246, 0.1); color: var(--accent-blue); }
.contact-button.call:hover { border-color: rgba(59, 130, 246, 0.4); transform: translateY(-4px); }
.contact-button.call:hover .icon-wrap { background: var(--accent-blue); color: #fff; }

.contact-button.whatsapp .icon-wrap { background: rgba(37, 211, 102, 0.1); color: #25D366; }
.contact-button.whatsapp:hover { border-color: rgba(37, 211, 102, 0.4); transform: translateY(-4px); }
.contact-button.whatsapp:hover .icon-wrap { background: #25D366; color: #fff; }

.contact-button.email .icon-wrap { background: rgba(255, 122, 0, 0.1); color: var(--accent-orange); }
.contact-button.email:hover { border-color: rgba(255, 122, 0, 0.4); transform: translateY(-4px); }
.contact-button.email:hover .icon-wrap { background: var(--accent-orange); color: #fff; }

.contact-button.linkedin .icon-wrap { background: rgba(0, 119, 181, 0.1); color: #0077b5; }
.contact-button.linkedin:hover { border-color: rgba(0, 119, 181, 0.4); transform: translateY(-4px); }
.contact-button.linkedin:hover .icon-wrap { background: #0077b5; color: #fff; }

.contact-button.instagram .icon-wrap { background: rgba(225, 48, 108, 0.1); color: #e1306c; }
.contact-button.instagram:hover { border-color: rgba(225, 48, 108, 0.4); transform: translateY(-4px); }
.contact-button.instagram:hover .icon-wrap { background: #e1306c; color: #fff; }

/* Footer styling */
.main-footer {
    border-top: 1px solid var(--border-color);
    padding: 40px 24px;
    text-align: center;
    background-color: #06080d;
}

.main-footer p {
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-sub {
    font-size: 12px !important;
    color: var(--text-muted) !important;
    margin-top: 6px;
}

/* Animations Trigger Classes (Scroll Reveal) */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.fade-in {
    opacity: 0;
    animation: fadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-content h1.fade-in { animation-delay: 0.1s; }
.hero-content .typing-text.fade-in { animation-delay: 0.2s; }
.hero-content .hero-desc.fade-in { animation-delay: 0.3s; }
.hero-content .hero-actions.fade-in { animation-delay: 0.4s; }
.card-container.fade-in { animation-delay: 0.5s; }

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Breakpoints & Adaptations */
@media (max-width: 992px) {
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
        padding: 20px 0;
    }
    
    .hero-content {
        align-items: center;
        text-align: center;
    }
    
    .hero-desc {
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
        width: 100%;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .profile-frame {
        width: 260px;
        height: 350px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .content-wrapper {
        padding: 80px 16px 40px;
    }
    
    .main-header {
        padding: 5px 0;
    }
    
    .mobile-nav-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: rgba(8, 11, 17, 0.98);
        backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .container-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 50px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .goals-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content h1 {
        font-size: 38px;
    }
}

@media (max-width: 500px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .contact-button {
        flex-direction: row;
        text-align: left;
        justify-content: flex-start;
        align-items: center;
        gap: 16px;
        padding: 14px 20px;
    }
    
    .contact-button .btn-text {
        align-items: flex-start;
    }
    
    .contact-button .icon-wrap {
        flex-shrink: 0;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
    
    .timeline-date {
        align-self: flex-start;
    }
}

@media (max-width: 360px) {
    .nfc-card {
        transform: scale(0.88);
        transform-origin: center center;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
}