@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --sva-dark: #fbfaf9;
    --sva-blue: #efedea;
    --sva-accent: #2563eb;
    --sva-accent-glow: rgba(37, 99, 235, 0.3);
    --sva-accent-secondary: #8b5cf6;
    --bg-main: #fdfbf7;
    --text-main: #0f172a;
    --text-muted: #475569;
    --bg-card: rgba(255, 255, 255, 0.7);
    --border-card: rgba(0, 0, 0, 0.04);
    --header-bg: rgba(253, 251, 247, 0.85);
}

.dark {
    --sva-dark: #0a0c12;
    --sva-blue: #131620;
    --sva-accent: #00f0ff;
    --sva-accent-glow: rgba(0, 240, 255, 0.4);
    --sva-accent-secondary: #b026ff;
    --bg-main: #0a0c12;
    --text-main: #f8fafc;
    --text-muted: #9ca3af;
    --bg-card: rgba(19, 22, 32, 0.5);
    --border-card: rgba(255, 255, 255, 0.05);
    --header-bg: rgba(10, 12, 18, 0.85);
}

body {
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.01em;
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    background-image:
        radial-gradient(circle at 10% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 60%),
        radial-gradient(circle at 90% 30%, rgba(139, 92, 246, 0.03) 0%, transparent 60%);
    transition: background-color 0.4s ease, color 0.4s ease;
}

.dark body {
    background-image:
        radial-gradient(circle at 10% 50%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 90% 30%, rgba(176, 38, 255, 0.08) 0%, transparent 60%);
}

h1, h2, h3, h4, h5, h6, .text-gradient {
    letter-spacing: -0.03em;
}

.no-scrollbar::-webkit-scrollbar {
    display: none;
}

.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.animate-in {
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header-nav-btn {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    color: var(--text-muted);
}

.header-nav-btn:hover {
    color: var(--text-main);
    background-color: rgba(0, 0, 0, 0.05);
}

.dark .header-nav-btn:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.05);
}

.header-nav-btn.active-tab {
    color: var(--sva-accent);
}

.header-nav-btn.active-tab::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    border-radius: 2px;
    background-color: var(--sva-accent);
    box-shadow: 0 0 10px var(--sva-accent-glow);
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-card);
    box-shadow: 0 8px 32px -4px rgba(0, 0, 0, 0.05);
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.dark .glass-card {
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.02) inset, 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    background: rgba(19, 22, 32, 0.4);
}

.dark .glass-card:hover {
    border-color: rgba(0, 240, 255, 0.2);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.05) inset, 0 40px 80px -20px rgba(0, 0, 0, 0.8);
    transform: translateY(-2px);
}

.info-card-item {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background-image: radial-gradient(circle at 100% 100%, rgba(0,0,0,0.02) 0%, transparent 60%);
}

.dark .info-card-item {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    background-image: radial-gradient(circle at 100% 100%, rgba(255,255,255,0.02) 0%, transparent 60%);
}

.info-card-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.05), transparent);
    transform: skewX(-20deg);
    transition: 0.5s;
    pointer-events: none;
}

.info-card-item:hover::before {
    left: 150%;
}

.info-card-item:hover {
    transform: translateY(-8px) scale(1.02);
    background: rgba(255, 255, 255, 1);
    border-color: rgba(37, 99, 235, 0.2);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.12), 0 0 20px var(--sva-accent-glow);
}

.dark .info-card-item:hover {
    background: rgba(19, 22, 32, 0.9);
    border-color: var(--sva-accent-glow);
    box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.8), 0 0 20px var(--sva-accent-glow) inset;
}

.icon-box {
    background: linear-gradient(135deg, rgba(239, 246, 255, 0.8), rgba(241, 245, 249, 0.8));
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark .icon-box {
    background: linear-gradient(135deg, rgba(10, 12, 18, 0.4), rgba(19, 22, 32, 0.6));
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5) inset;
}

.info-card-item:hover .icon-box {
    background: var(--sva-accent);
    border-color: var(--sva-accent);
    box-shadow: 0 0 20px var(--sva-accent-glow);
}

.info-card-item:hover .icon-box svg {
    color: white;
    transform: scale(1.1);
}

/* Iframe */
.iframe-container {
    width: 100%;
    height: calc(100vh - 100px);
    border: none;
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
    background: var(--bg-main);
    animation: fadeIn 0.4s ease-out;
}

.dark .iframe-container {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        filter: blur(5px);
    }
    to {
        opacity: 1;
        filter: blur(0);
    }
}

.section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.1), transparent);
}

.dark .section-title::after {
    background: linear-gradient(to right, rgba(255, 255, 255, 0.1), transparent);
}

/* Shimmer Button Effect */
.shimmer-btn {
    position: relative;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    transition: all 0.3s ease;
}

.dark .shimmer-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.shimmer-btn::after {
    content: '';
    position: absolute;
    top: 0;
    right: 100%;
    bottom: 0;
    width: 50%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 3s infinite;
}

.dark .shimmer-btn::after {
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.05), transparent);
}

@keyframes shimmer {
    0% { right: 100%; }
    50% { right: -50%; }
    100% { right: -50%; }
}

.shimmer-btn:hover {
    border-color: var(--sva-accent);
    box-shadow: 0 0 15px var(--sva-accent-glow);
    transform: translateY(-1px);
}
/* Dropdown Animations */
.group-hover\/nav-dropdown\:visible {
    animation: dropdownFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    transform: translateX(4px);
    background: rgba(37, 99, 235, 0.1);
    color: var(--sva-accent);
}