/* ===== 双主题液态玻璃风格 ===== */

/* === 深色主题 === */
[data-theme="dark"] {
    --bg-primary: #0a0a1a;
    --bg-secondary: #0d1033;
    --bg-tertiary: #1a1a4e;
    --bg-accent: #2d1b4e;
    
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-bg-hover: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-border-hover: rgba(255, 255, 255, 0.2);
    --glass-glow: rgba(138, 43, 226, 0.15);
    
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    
    --accent: #a78bfa;
    --accent-light: #c4b5fd;
    --accent-glow: rgba(167, 139, 250, 0.4);
    
    --gradient-accent: linear-gradient(135deg, #667eea 0%, #a78bfa 50%, #c084fc 100%);
    --gradient-bg: linear-gradient(135deg, #0a0a1a 0%, #0d1033 25%, #1a1a4e 50%, #2d1b4e 75%, #0a0a1a 100%);

    --nav-shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
    --nav-sheen: rgba(255, 255, 255, 0.12);
    --nav-inner: rgba(255, 255, 255, 0.18);
    --nav-outline: rgba(255, 255, 255, 0.22);
    --lens-bg: rgba(255, 255, 255, 0.15);
    --lens-flare: rgba(255, 255, 255, 0.7);
    --control-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
    --control-outline: rgba(255, 255, 255, 0.28);

    --btn-primary-bg: linear-gradient(135deg, #667eea 0%, #a78bfa 55%, #c084fc 100%);
    --btn-primary-text: #0a0a1a;
    --btn-primary-shadow: 0 12px 30px rgba(0, 0, 0, 0.35), 0 0 24px var(--accent-glow);
    --btn-primary-shadow-hover: 0 16px 36px rgba(0, 0, 0, 0.4), 0 0 32px var(--accent-glow);
    --btn-shine: rgba(255, 255, 255, 0.35);
}

/* === 浅色主题 === */
[data-theme="light"] {
    --bg-primary: #fafbff;
    --bg-secondary: #f5f7ff;
    --bg-tertiary: #eef1ff;
    --bg-accent: #e8ecff;
    
    --glass-bg: rgba(255, 255, 255, 0.45);
    --glass-bg-hover: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.55);
    --glass-border-hover: rgba(255, 255, 255, 0.75);
    --glass-glow: rgba(99, 102, 241, 0.08);
    
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-tertiary: #7a7a9a;
    
    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.25);
    
    --gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    --gradient-bg: linear-gradient(135deg, #fafbff 0%, #f0f3ff 25%, #e8ecff 50%, #f0f3ff 75%, #fafbff 100%);

    --nav-shadow: 0 14px 32px rgba(90, 100, 140, 0.18);
    --nav-sheen: rgba(255, 255, 255, 0.7);
    --nav-inner: rgba(255, 255, 255, 0.8);
    --nav-outline: rgba(255, 255, 255, 0.9);
    --lens-bg: rgba(255, 255, 255, 0.6);
    --lens-flare: rgba(255, 255, 255, 0.95);
    --control-shadow: 0 6px 16px rgba(110, 120, 160, 0.2);
    --control-outline: rgba(255, 255, 255, 0.9);

    --btn-primary-bg: linear-gradient(135deg, #3b3ff0 0%, #6d5ef6 55%, #a78bfa 100%);
    --btn-primary-text: #f6f7ff;
    --btn-primary-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    --btn-primary-shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.22);
    --btn-shine: rgba(255, 255, 255, 0.55);
}

/* === 通用变量 === */
:root {
    --blur-sm: 10px;
    --blur-md: 20px;
    --blur-lg: 40px;
    --blur-xl: 60px;
    
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --radius-full: 9999px;
    
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: 0.2s ease;
}

/* === Reset === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', 'PingFang SC', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    padding-bottom: env(safe-area-inset-bottom);
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* === 动态背景 === */
.bg-animated {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    background: var(--gradient-bg);
    background-size: 200% 200%;
    animation: gradientMove 20s ease infinite;
    transition: background var(--transition);
}

.bg-animated::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 25% 25%, var(--glass-glow) 0%, transparent 50%),
        radial-gradient(ellipse at 75% 75%, var(--glass-glow) 0%, transparent 50%);
    animation: orbFloat 15s ease-in-out infinite;
}

[data-theme="dark"] .bg-animated::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.25) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 30% 65%, rgba(255,255,255,0.2) 0%, transparent 100%),
        radial-gradient(1px 1px at 50% 10%, rgba(255,255,255,0.3) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 70% 40%, rgba(255,255,255,0.2) 0%, transparent 100%),
        radial-gradient(1px 1px at 90% 80%, rgba(255,255,255,0.25) 0%, transparent 100%);
    animation: twinkle 6s ease-in-out infinite;
}

@keyframes gradientMove {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(2%, -2%); }
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* === 玻璃效果 === */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all var(--transition);
}

.glass:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
}

/* === 容器 === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
}

.project.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.15rem;
    margin-bottom: 4rem;
}

/* === 项目布局 === */
.project-grid {
    display: grid;
    gap: 2.25rem;
}

/* === 按钮 === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition);
}

.btn-primary {
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border: none;
    box-shadow: var(--btn-primary-shadow);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: scale(1.04);
    box-shadow: var(--btn-primary-shadow-hover);
}

.btn-primary > * {
    position: relative;
    z-index: 1;
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -120%;
    width: 55%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--btn-shine), transparent);
    transform: skewX(-20deg);
    z-index: 0;
    animation: btnShine 3s infinite;
    pointer-events: none;
}

@keyframes btnShine {
    0% { left: -120%; }
    20% { left: 140%; }
    100% { left: 140%; }
}

@media (prefers-reduced-motion: reduce) {
    .btn-shine {
        animation: none;
    }
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-sm));
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

/* === 导航栏 === */
.navbar {
    position: fixed;
    top: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: calc(100% - 3rem);
    max-width: 800px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-lg));
    -webkit-backdrop-filter: blur(var(--blur-lg));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    box-shadow: var(--nav-shadow);
    overflow: hidden;
    isolation: isolate;
    transition: all var(--transition);
}

.navbar::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--nav-sheen), rgba(255, 255, 255, 0));
    opacity: 0.7;
    pointer-events: none;
}

.navbar::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 1px 0 var(--nav-inner), inset 0 0 0 1px var(--nav-outline);
    pointer-events: none;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1.25rem;
    position: relative;
    z-index: 1;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-lens {
    width: 36px;
    height: 36px;
    padding: 3px;
    border-radius: 50%;
    background: var(--lens-bg);
    border: 1px solid var(--glass-border);
    box-shadow: inset 0 0 12px var(--nav-inner);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.logo-lens::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 1px 0 var(--nav-inner);
    pointer-events: none;
}

.logo-flare {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--lens-flare), rgba(255, 255, 255, 0) 60%);
    opacity: 0.5;
    pointer-events: none;
}

.nav-logo .logo-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.nav-title {
    letter-spacing: -0.01em;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
}

/* 主题切换按钮 */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--control-shadow);
    color: var(--text-secondary);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    background: var(--glass-bg-hover);
    color: var(--accent);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.theme-toggle::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 1px 0 var(--nav-inner), inset 0 0 0 1px var(--control-outline);
    pointer-events: none;
}

@media (hover: hover) and (pointer: fine) {
    .navbar:hover {
        transform: translateX(-50%) translateY(-2px) scale(1.01);
        box-shadow: var(--nav-shadow), 0 12px 28px rgba(0, 0, 0, 0.12);
    }

    .theme-toggle:hover {
        transform: translateY(-1px) scale(1.03);
        box-shadow: var(--control-shadow), 0 10px 22px rgba(0, 0, 0, 0.14);
    }
}

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
}

.hamburger, .hamburger::before, .hamburger::after {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger { position: relative; }
.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}
.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active .hamburger::after { top: 0; transform: rotate(-45deg); }

/* === Hero === */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
}

.hero-content { animation: fadeUp 0.8s ease forwards; }

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-tertiary);
    margin-bottom: 2rem;
    max-width: 450px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero 视觉区域 */
.hero-visual {
    position: relative;
    height: 400px;
    animation: fadeUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.floating-card {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 6s ease-in-out infinite;
}

.floating-card svg {
    color: var(--accent);
}

.card-1 {
    width: 120px; height: 120px;
    top: 10%; left: 20%;
    animation-delay: 0s;
}
.card-1 svg { width: 48px; height: 48px; }

.card-2 {
    width: 100px; height: 100px;
    top: 50%; right: 15%;
    animation-delay: 1s;
}
.card-2 svg { width: 40px; height: 40px; }

.card-3 {
    width: 140px; height: 140px;
    bottom: 10%; left: 35%;
    animation-delay: 2s;
}
.card-3 svg { width: 56px; height: 56px; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-tertiary);
    font-size: 0.8rem;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-tertiary);
    border-bottom: 2px solid var(--text-tertiary);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

/* === Project === */
.project-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 2.5rem;
    align-items: center;
}

.project-showcase:hover {
    transform: none;
}

.project-badge {
    display: inline-block;
    padding: 0.4rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-name {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.project-features {
    margin-bottom: 2rem;
}

.project-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.project-features svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
    flex-shrink: 0;
}

.project-btn svg {
    width: 18px;
    height: 18px;
}

.project-card {
    padding: 2.25rem;
}

.project-card .project-features {
    margin-bottom: 1.25rem;
}

.project-soon-note {
    color: var(--text-tertiary);
    font-size: 0.95rem;
}

/* 项目预览窗口 */
.project-preview {
    display: flex;
    justify-content: center;
}

.preview-window {
    width: 100%;
    max-width: 400px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.window-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1rem;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--glass-border);
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-tertiary);
    opacity: 0.5;
}

.window-dots span:first-child { background: #ff5f57; opacity: 1; }
.window-dots span:nth-child(2) { background: #febc2e; opacity: 1; }
.window-dots span:last-child { background: #28c840; opacity: 1; }

.window-url {
    flex: 1;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-tertiary);
    padding: 0.35rem 1rem;
    background: var(--glass-bg);
    border-radius: var(--radius-sm);
}

.window-content {
    padding: 1.5rem;
}

.mock-todo {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.mock-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.mock-title {
    width: 100px;
    height: 20px;
    background: var(--text-tertiary);
    opacity: 0.3;
    border-radius: 4px;
}

.mock-btn {
    width: 60px;
    height: 28px;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
    opacity: 0.8;
}

.mock-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

.mock-item .check {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-tertiary);
    border-radius: 50%;
    opacity: 0.4;
    flex-shrink: 0;
}

.mock-item.done .check {
    background: var(--accent);
    border-color: var(--accent);
    opacity: 1;
}

.mock-item .text {
    flex: 1;
    height: 12px;
    background: var(--text-tertiary);
    opacity: 0.25;
    border-radius: 4px;
}

.mock-item .text.short {
    width: 60%;
}

.mock-item.done .text {
    opacity: 0.15;
}

/* === Footer === */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--glass-border);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}

.footer-brand .logo-img {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    object-fit: contain;
}

.footer-copy {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

/* === 动画 === */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === 响应式 === */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-visual { display: none; }
    .hero-description { margin: 0 auto 2rem; }
    .hero-buttons { justify-content: center; }
    
    .project-showcase {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .project-info { text-align: center; }
    .project-features { display: inline-block; text-align: left; }
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: calc(80px + env(safe-area-inset-top));
    }

    .container {
        padding-left: calc(1.25rem + env(safe-area-inset-left));
        padding-right: calc(1.25rem + env(safe-area-inset-right));
    }
    .section { padding: 3.5rem 0; }
    .section-title { font-size: 1.75rem; }
    .section-subtitle { 
        font-size: 1rem; 
        margin-bottom: 2.5rem;
    }
    
    /* 导航栏 */
    .navbar {
        top: calc(0.5rem + 15px + env(safe-area-inset-top));
        left: 50%;
        transform: translateX(-50%);
        width: fit-content;
        max-width: calc(100% - 1.5rem);
        border-radius: var(--radius-full);
    }
    
    .nav-container {
        padding: 0.55rem 0.95rem;
        position: relative;
        gap: 0.85rem;
    }
    
    .nav-logo {
        font-size: 0.95rem;
        gap: 0.55rem;
    }
    
    .nav-logo .logo-lens {
        width: 38px;
        height: 38px;
        padding: 3px;
    }
    
    .nav-title {
        display: inline;
        white-space: nowrap;
    }
    
    .nav-right {
        gap: 0.45rem;
    }

    .nav-menu {
        display: none;
    }
    
    .nav-toggle { display: none; }
    
    .theme-toggle {
        width: 44px;
        height: 44px;
    }
    
    .theme-toggle svg {
        width: 20px;
        height: 20px;
    }
    
    /* Hero */
    .hero { 
        padding: calc(7rem + 20px + env(safe-area-inset-top)) 1.25rem calc(2.5rem + env(safe-area-inset-bottom));
        padding-left: calc(1.25rem + env(safe-area-inset-left));
        padding-right: calc(1.25rem + env(safe-area-inset-right));
        min-height: auto;
    }

    .hero-container {
        text-align: center;
    }
    
    .hero-badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.875rem;
        margin-bottom: 1rem;
    }
    
    .hero-title { 
        font-size: 2.1rem; 
        margin-bottom: 0.75rem;
    }
    
    .hero-subtitle { 
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
        margin: 0 auto 1.5rem;
    }
    
    .hero-buttons { 
        flex-direction: column; 
        width: 100%;
        gap: 0.75rem;
        align-items: center;
        justify-content: center;
    }
    
    .btn { 
        width: 100%; 
        justify-content: center;
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    /* Project */
    .project.section {
        padding: 3.25rem 0;
    }

    .project-grid {
        gap: 1.25rem;
    }

    .project-showcase {
        padding: 1.25rem;
        gap: 1.5rem;
    }

    .project-card {
        padding: 1.25rem;
    }

    .project-info {
        text-align: center;
    }
    
    .project-badge {
        font-size: 0.7rem;
        padding: 0.35rem 0.75rem;
        margin-bottom: 0.75rem;
    }
    
    .project-name {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .project-desc {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .project-features {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        justify-items: center;
        text-align: center;
        gap: 0.35rem 0.9rem;
        margin-bottom: 1rem;
    }
    
    .project-features li {
        font-size: 0.875rem;
        padding: 0.3rem 0;
        gap: 0.5rem;
        justify-content: center;
    }
    
    .project-features svg {
        width: 18px;
        height: 18px;
    }
    
    .preview-window {
        max-width: 100%;
    }

    .project-preview {
        display: none;
    }
    
    .window-header {
        padding: 0.625rem 0.75rem;
    }
    
    .window-dots span {
        width: 10px;
        height: 10px;
    }
    
    .window-url {
        font-size: 0.7rem;
        padding: 0.25rem 0.75rem;
    }
    
    .window-content {
        padding: 1rem;
    }
    
    .mock-item {
        padding: 0.625rem 0.75rem;
        gap: 0.5rem;
    }
    
    .mock-item .check {
        width: 16px;
        height: 16px;
    }
    
    /* Footer */
    .footer {
        padding: 1.5rem 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
    
    .footer-brand {
        justify-content: center;
    }
    
    .footer-brand .logo-img {
        width: 20px;
        height: 20px;
    }
    
    .footer-copy {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding-left: calc(1rem + env(safe-area-inset-left));
        padding-right: calc(1rem + env(safe-area-inset-right));
    }
    .section { padding: 3rem 0; }
    .section-title { font-size: 1.5rem; }

    .nav-logo {
        font-size: 0.9rem;
    }

    .nav-logo .logo-lens {
        width: 36px;
        height: 36px;
        padding: 3px;
    }
    
    .hero { 
        padding: calc(6.25rem + 20px + env(safe-area-inset-top)) 1rem calc(2rem + env(safe-area-inset-bottom));
        padding-left: calc(1rem + env(safe-area-inset-left));
        padding-right: calc(1rem + env(safe-area-inset-right));
    }

    .project.section {
        padding: 3rem 0;
    }

    .project-grid {
        gap: 1.1rem;
    }
    
    .hero-title { font-size: 1.875rem; }
    .hero-subtitle { font-size: 0.95rem; }
    .hero-description { font-size: 0.9rem; }
    
    .project-showcase { 
        padding: 1.25rem;
    }

    .project-card {
        padding: 1.25rem;
    }
    
    .project-name { font-size: 1.35rem; }
}