/* Root Variables - Silicon Valley Tech & Minimalist Aesthetics */
:root {
    /* Color Palette (Linear & Vercel Inspired) */
    --bg-primary: #090a0f;
    --bg-secondary: #121318;
    --bg-card: #181920;
    
    --accent-indigo: #4f46e5;
    --accent-indigo-soft: rgba(79, 70, 229, 0.1);
    --accent-blue: #3b82f6;
    --accent-blue-soft: rgba(59, 130, 246, 0.15);
    --accent-silver: #e2e8f0;
    
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #475569;
    
    --border-subtle: #222530;
    --border-hover: #333746;
    
    /* Fonts */
    --font-en: 'Inter', sans-serif;
    --font-ko: 'Noto Sans KR', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset and Global Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
}

body {
    font-family: var(--font-ko);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-en), var(--font-ko);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

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

ul {
    list-style: none;
}

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

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-indigo);
}

/* Background Atmospheric Grid Grid (Stripe style) */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -1;
    pointer-events: none;
}

/* Remove bright neons, replace with subtle vignette */
.bg-glow-1 {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% -20%, rgba(79, 70, 229, 0.08) 0%, rgba(0,0,0,0) 60%);
    z-index: -2;
    pointer-events: none;
}

.bg-glow-2 {
    position: fixed;
    bottom: -10%;
    right: -10%;
    width: 50%;
    height: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.03) 0%, rgba(0,0,0,0) 70%);
    z-index: -2;
    pointer-events: none;
}

/* Utilities */
.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-alt {
    color: var(--text-primary);
}

.highlight-cyan {
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent-indigo);
}

.badge {
    display: inline-block;
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    font-family: var(--font-en);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    border-radius: 4px;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 24px;
}

.section-header {
    text-align: left;
    margin-bottom: 70px;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 30px;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 15px;
    font-weight: 800;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 700px;
    font-weight: 400;
}

/* Button System (Minimalist / Clean) */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-normal);
    font-family: var(--font-ko);
}

.primary-btn {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: 1px solid var(--text-primary);
}

.primary-btn:hover {
    background: transparent;
    color: var(--text-primary);
}

.secondary-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-hover);
}

/* Header Navigation */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(9, 10, 15, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition-normal);
}

#main-header.scrolled {
    background: rgba(9, 10, 15, 0.9);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-en);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-item {
    font-family: var(--font-en);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 6px 0;
}

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

.nav-btn {
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--text-primary);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-en);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-hover);
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding-top: 120px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px 80px;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 80px;
    align-items: center;
}

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

.hero-title {
    font-size: 3.6rem;
    line-height: 1.15;
    margin-bottom: 25px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 45px;
    font-weight: 400;
    line-height: 1.7;
}

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

.hero-visual-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual-card {
    position: relative;
    width: 100%;
    max-width: 440px;
    aspect-ratio: 16/10;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    background: var(--bg-secondary);
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
}

.visual-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(9, 10, 15, 0.4) 0%, transparent 100%);
}

.floating-badge {
    display: none; /* Remove fancy glowing floating badges for SV minimal style */
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-family: var(--font-en);
    letter-spacing: 0.05em;
}

/* About Section */
.about-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 40px;
    transition: var(--transition-normal);
}

.about-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4rem;
    margin-bottom: 24px;
}

.story-card .card-icon {
    background: var(--accent-indigo-soft);
    color: var(--accent-indigo);
}

.video-card .card-icon {
    background: var(--accent-blue-soft);
    color: var(--accent-blue);
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 400;
    line-height: 1.7;
}

/* Capabilities Section */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.capability-box {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 35px;
    transition: var(--transition-normal);
}

.capability-box:hover {
    border-color: var(--border-hover);
    background: var(--bg-card);
}

.cap-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.cap-header i {
    font-size: 1.4rem;
    color: var(--text-primary);
}

.font-gradient-purple, .font-gradient-blue, .font-gradient-pink {
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: unset !important;
    color: var(--accent-indigo) !important;
}

.capability-box#cap-2 .cap-header i {
    color: var(--text-primary) !important;
}

.capability-box#cap-3 .cap-header i {
    color: var(--accent-blue) !important;
}

.cap-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.cap-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cap-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 18px;
}

.cap-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--text-muted);
    font-family: var(--font-en);
}

/* Portfolio Section */
.portfolio-filters {
    display: flex;
    justify-content: flex-start;
    gap: 8px;
    margin-bottom: 40px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-en);
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.filter-btn.active {
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.portfolio-item {
    transition: var(--transition-normal);
}

.portfolio-item.hidden {
    display: none;
}

.portfolio-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.portfolio-thumb {
    position: relative;
    padding: 40px 20px;
    background: rgba(0, 0, 0, 0.15);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    border-bottom: 1px solid var(--border-subtle);
}

/* Smartphone Mockup (Clean Matte Charcoal) */
.video-mockup-frame {
    width: 200px;
    aspect-ratio: 9/16;
    border: 4px solid #2d3142;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
    background: #000;
}

.smartphone-notch {
    display: none;
}

.mockup-screen {
    width: 100%;
    height: 100%;
    position: relative;
}

.overlay-ui {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.1) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 10px;
}

.right-actions {
    position: absolute;
    right: 8px;
    bottom: 60px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    color: #fff;
    font-family: var(--font-en);
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.8rem;
    opacity: 0.8;
}

.action-btn i {
    font-size: 1rem;
    margin-bottom: 2px;
}

.action-btn span {
    font-size: 0.6rem;
}

.bottom-info {
    color: #fff;
    max-width: 85%;
}

.username {
    font-size: 0.7rem;
    font-weight: 700;
    margin-bottom: 2px;
    font-family: var(--font-en);
}

.caption {
    font-size: 0.6rem;
    font-weight: 400;
    line-height: 1.3;
}

.play-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Web Mockup */
.web-thumb {
    aspect-ratio: 16/10;
}

.web-mockup-frame {
    width: 100%;
    height: 100%;
    border-radius: 6px;
    border: 1px solid var(--border-subtle);
    background: #0f1015;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.web-header-bar {
    height: 22px;
    background: #181920;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0 10px;
    border-bottom: 1px solid var(--border-subtle);
}

.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}
.dot.red { background: #334155; }
.dot.yellow { background: #334155; }
.dot.green { background: #334155; }

.mockup-content {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #0e0f14;
    padding: 20px;
}

.web-preview-inner h5 {
    font-size: 0.95rem;
    margin-bottom: 4px;
    font-weight: 600;
}

.web-preview-inner p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Portfolio Info styling */
.portfolio-info {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-tag {
    font-family: var(--font-en);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.portfolio-info h4 {
    font-size: 1.15rem;
    margin-bottom: 8px;
    font-weight: 700;
}

.portfolio-info p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-en);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom: 1px solid var(--text-muted);
    padding-bottom: 2px;
}

.card-link:hover {
    color: var(--accent-indigo);
    border-color: var(--accent-indigo);
}

/* Contact Section & Digital Business Card */
.contact-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: start;
}

/* Minimalist Silicon Valley Style Digital Card */
.digital-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    aspect-ratio: 1.6/1; 
    background: #111216;
    border: 1px solid var(--border-subtle);
}

.digital-card::before {
    display: none;
}

.digital-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.4),
        0 0 1px rgba(255, 255, 255, 0.15);
}

.card-inner {
    padding: 30px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
}

.card-header-visual {
    display: flex;
    align-items: center;
    gap: 16px;
}

.card-avatar {
    width: 48px;
    height: 48px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    background: var(--bg-primary);
}

.card-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(1);
}

.card-title-group h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.title-sub {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 1px;
}

.card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 15px 0;
}

.card-info-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
}

.card-info-item i {
    width: 18px;
    font-size: 0.95rem;
    color: var(--text-muted);
    text-align: center;
}

.card-info-item:nth-child(2) i { color: var(--text-muted); }
.card-info-item:nth-child(3) i { color: var(--text-muted); }

.info-details {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.info-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-family: var(--font-en);
    font-weight: 600;
}

.info-value {
    color: var(--text-secondary);
    font-weight: 400;
    font-family: var(--font-en), var(--font-ko);
}

.copy-btn, .card-social-link {
    background: transparent;
    border: 1px solid var(--border-subtle);
    width: 26px;
    height: 26px;
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    color: var(--text-secondary);
}

.copy-btn:hover, .card-social-link:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: rgba(255,255,255,0.03);
}

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

.card-chip {
    width: 32px;
    height: 24px;
    background: linear-gradient(135deg, #475569 0%, #1e293b 100%);
    border-radius: 4px;
    position: relative;
    border: 1px solid var(--border-subtle);
}

.card-chip::before {
    display: none;
}

.card-signature {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.05em;
}

/* Toast Message */
.copy-toast {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #0f172a;
    border: 1px solid #334155;
    color: #f1f5f9;
    padding: 6px 14px;
    font-size: 0.75rem;
    border-radius: 4px;
    pointer-events: none;
    opacity: 0;
    transition: all var(--transition-fast);
}

.copy-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Contact Form styling (Clean Minimalist Form) */
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.form-group input, .form-group textarea {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    padding: 12px 16px;
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-ko);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--text-secondary);
}

.submit-btn {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: 1px solid var(--text-primary);
    padding: 14px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: var(--transition-normal);
}

.submit-btn:hover {
    background: transparent;
    color: var(--text-primary);
}

/* Footer Section */
footer {
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-primary);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 35px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--font-en);
}

.footer-credit {
    font-family: var(--font-ko);
}

/* Scroll Reveal animation default */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

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

/* Mobile Responsive Adjustments */
@media (max-width: 1024px) {
    .section-container {
        padding: 80px 24px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .digital-card {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 16px 20px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        transition: var(--transition-normal);
        border-left: 1px solid var(--border-subtle);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.4);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .mobile-nav-toggle {
        display: block;
        z-index: 101;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        padding-top: 20px;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-actions {
        width: 100%;
        justify-content: center;
    }
    
    .hero-visual-card {
        max-width: 360px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .digital-card {
        aspect-ratio: auto;
    }
    
    .card-inner {
        padding: 20px;
    }
    
    .card-avatar {
        width: 44px;
        height: 44px;
    }
    
    .card-title-group h3 {
        font-size: 1.15rem;
    }
}