/* ============================================
   TeamSpec.ai — Blue / Dark Theme
   ============================================ */

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

:root {
    --bg-primary: #080a0f;
    --bg-secondary: #0d1117;
    --bg-card: rgba(13, 20, 35, 0.85);
    --bg-card-hover: rgba(20, 30, 55, 0.95);
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(37, 99, 235, 0.35);
    --text-primary: #f0f6ff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --blue: #2563eb;
    --blue-light: #60a5fa;
    --blue-dark: #1d4ed8;
    --blue-glow: rgba(37, 99, 235, 0.15);
    --blue-glow-strong: rgba(37, 99, 235, 0.25);
    --green: #22c55e;
    --amber: #f59e0b;
    --red: #ef4444;
    --radius: 10px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Animations --- */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* --- Nav --- */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition);
}
.nav.scrolled {
    background: rgba(8, 10, 15, 0.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 0;
}
.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    font-size: 1.4rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}
.nav-logo span { color: var(--blue-light); }
.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}
.nav-links a {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-cta {
    background: var(--blue) !important;
    color: white !important;
    padding: 0.5rem 1.25rem !important;
    border-radius: 6px !important;
    font-weight: 700 !important;
    letter-spacing: 0.02em !important;
}
.nav-cta:hover {
    background: var(--blue-dark) !important;
    box-shadow: 0 4px 20px var(--blue-glow-strong);
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block; width: 22px; height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    white-space: nowrap;
}
.btn-primary {
    background: var(--blue);
    color: white;
}
.btn-primary:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--blue-glow-strong);
}
.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.12);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    color: var(--blue-light);
    border: 1px solid rgba(96, 165, 250, 0.35);
}
.btn-outline:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--blue-light);
    transform: translateY(-2px);
}
.btn-lg { padding: 1rem 2rem; font-size: 1rem; }
.btn-arrow { transition: transform var(--transition); }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 7rem 1.5rem 3rem;
    overflow: hidden;
}
.hero-short {
    min-height: 65vh;
    padding-top: 8rem;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
}
.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}
.glow-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.18), transparent);
    top: -10%; left: 20%;
    animation: drift 14s ease-in-out infinite;
}
.glow-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.1), transparent);
    bottom: 10%; right: 15%;
    animation: drift 18s ease-in-out infinite reverse;
}
@keyframes drift {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(20px, -15px); }
    66% { transform: translate(-15px, 10px); }
}
.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}
.hero-badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: var(--blue-glow);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--blue-light);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}
.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.035em;
    margin-bottom: 1.25rem;
}
.gradient-text {
    background: linear-gradient(135deg, var(--blue-light), #c7d9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}
.hero-ctas {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Sections --- */
.section {
    padding: 5rem 0;
}
.section-dark {
    background: var(--bg-secondary);
}
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}
.section-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--blue-light);
    background: var(--blue-glow);
    border: 1px solid rgba(37, 99, 235, 0.2);
    padding: 0.3rem 0.75rem;
    border-radius: 100px;
    margin-bottom: 1rem;
}
.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
}
.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Cards --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.card-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: border-color var(--transition), background var(--transition);
}
.card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}
.card-num {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--blue);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}
.card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.65rem;
}
.card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.65;
}
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1rem;
}
.card-tags span {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--blue-light);
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
}

/* --- Ecosystem cards --- */
.eco-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 2rem;
}
.eco-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
}
.eco-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--blue-glow);
}
.eco-card-icon {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}
.eco-card h3 {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 0.4rem;
}
.eco-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.55;
}
.eco-card .eco-link {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--blue-light);
    margin-top: 0.75rem;
    display: block;
}

/* --- Sponsor block --- */
.sponsor-block {
    background: var(--bg-card);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-lg);
    padding: 2.5rem 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    max-width: 900px;
    margin: 2rem auto 0;
}
.sponsor-logo {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    flex-shrink: 0;
    color: var(--text-primary);
}
.sponsor-logo span { color: #ef4444; }
.sponsor-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}
.sponsor-desc strong { color: var(--text-primary); }

/* --- Pitch two-col --- */
.pitch-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}
.pitch-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
}
.pitch-card h3 {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--blue-light);
    margin-bottom: 0.75rem;
}
.pitch-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* --- Score table (for Siggy page) --- */
.dim-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.dim-table th {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--border);
    text-align: left;
}
.dim-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    vertical-align: middle;
}
.dim-table tr:last-child td { border-bottom: none; }
.dim-name { color: var(--text-primary); font-weight: 600; }

/* --- Feature list --- */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-top: 1rem;
}
.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.feature-item::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--blue);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.45rem;
}

/* --- Final CTA --- */
.section-final-cta {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    padding: 5rem 0;
}
.final-cta {
    position: relative;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
    padding: 3.5rem 2.5rem;
    background: var(--bg-card);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.final-cta-glow {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 300px; height: 300px;
    background: radial-gradient(circle, var(--blue-glow-strong), transparent);
    pointer-events: none;
}
.final-cta h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: 0.75rem;
    position: relative;
}
.final-cta p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.65;
    position: relative;
}
.final-cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

/* --- Footer --- */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 3rem 0 1.5rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}
.footer-brand {}
.footer-logo {
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
.footer-logo span { color: var(--blue-light); }
.footer-tagline {
    font-size: 0.825rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    line-height: 1.5;
}
.footer-contact a {
    font-size: 0.825rem;
    color: var(--blue-light);
}
.footer-links-group h4 {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}
.footer-links-group ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.footer-links-group ul li a {
    font-size: 0.825rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}
.footer-links-group ul li a:hover { color: var(--text-primary); }
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-bottom p {
    font-size: 0.775rem;
    color: var(--text-muted);
}
.footer-bottom a {
    font-size: 0.775rem;
    color: var(--text-muted);
    transition: color var(--transition);
}
.footer-bottom a:hover { color: var(--text-secondary); }

/* --- Responsive --- */
@media (max-width: 900px) {
    .card-grid { grid-template-columns: 1fr 1fr; }
    .eco-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .card-grid { grid-template-columns: 1fr; }
    .card-grid-2 { grid-template-columns: 1fr; }
    .eco-grid { grid-template-columns: 1fr 1fr; }
    .pitch-grid { grid-template-columns: 1fr; }
    .sponsor-block { flex-direction: column; text-align: center; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}
@media (max-width: 480px) {
    .eco-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}