/* ===========================================
   NYC Energy Map — Landing Page Styles
   Dark teal theme with mint/cyan accents
   =========================================== */

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

/* ---- Design Tokens ---- */
:root {
    --bg-primary: #0f231e;
    --bg-surface: #162e28;
    --bg-card: rgba(102, 255, 219, 0.03);
    --bg-card-hover: rgba(102, 255, 219, 0.08);
    --accent: #66ffdb;
    --accent-dim: rgba(102, 255, 219, 0.15);
    --accent-hover: #33e0ba;
    --text-primary: #e8f5f0;
    --text-muted: rgba(232, 245, 240, 0.55);
    --text-body: rgba(232, 245, 240, 0.75);
    --border: rgba(102, 255, 219, 0.1);
    --border-strong: rgba(102, 255, 219, 0.25);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

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

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

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

/* ---- Navigation ---- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 40px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(15, 35, 30, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background 0.3s;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.nav-logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: var(--bg-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 900;
}

.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
    letter-spacing: -0.01em;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.8rem;
    color: var(--text-muted);
    min-width: 200px;
    transition: border-color 0.2s;
}

.nav-search:hover {
    border-color: var(--border-strong);
}

.nav-search-icon {
    opacity: 0.5;
}

.nav-search span {
    flex: 1;
}

.nav-cta {
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 0.82rem;
    padding: 9px 20px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    letter-spacing: -0.01em;
    text-decoration: none;
}

.nav-cta:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-1px);
}

.nav-link-btn {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid transparent;
    transition: all 0.2s;
    text-decoration: none;
}

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

/* ---- Hero ---- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 40px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
            rgba(15, 35, 30, 0.3) 0%,
            rgba(15, 35, 30, 0.6) 50%,
            var(--bg-primary) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 750px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-dim);
    border: 1px solid var(--border-strong);
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 28px;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.5);
    }
}

.hero-title {
    font-size: clamp(2.8rem, 5.5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.04em;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.hero-title em {
    font-style: italic;
    background: linear-gradient(135deg, var(--accent), #7dffe0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-body);
    line-height: 1.7;
    max-width: 540px;
    margin: 0 auto 36px;
    letter-spacing: -0.01em;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    letter-spacing: -0.01em;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(74, 237, 196, 0.25);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-strong);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    letter-spacing: -0.01em;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* ---- Sections ---- */
.section {
    padding: 100px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-label {
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    max-width: 600px;
}

.section-desc {
    font-size: 0.95rem;
    color: var(--text-body);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 48px;
}

/* ---- Feature Cards ---- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--accent-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.3rem;
    color: var(--accent);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.feature-card-img {
    margin-top: 20px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    height: 140px;
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* ---- CTA Section ---- */
.cta-section {
    padding: 80px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.cta-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 64px;
    display: flex;
    align-items: center;
    gap: 64px;
    overflow: hidden;
    position: relative;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(102, 255, 219, 0.06), transparent 70%);
    pointer-events: none;
}

.cta-content {
    flex: 1;
}

.cta-content h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.cta-features {
    list-style: none;
    margin-bottom: 32px;
}

.cta-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-body);
    padding: 6px 0;
}

.cta-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent-dim);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    flex-shrink: 0;
}

.cta-image {
    flex: 0 0 380px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.cta-image img {
    width: 100%;
    height: auto;
}

/* ---- Stats Strip ---- */
.stats-strip {
    padding: 60px 40px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    color: var(--accent);
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ---- Footer ---- */
.footer {
    padding: 60px 40px 30px;
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1rem;
    margin-bottom: 12px;
}

.footer-brand-title .ficon {
    width: 28px;
    height: 28px;
    background: var(--accent);
    color: var(--bg-primary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 900;
}

.footer-brand p {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: var(--text-muted);
    font-size: 0.82rem;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-muted);
    margin-left: 20px;
}

/* ---- Animations ---- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    opacity: 0;
    animation: fadeInUp 0.7s ease forwards;
}

.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.2s;
}

.delay-3 {
    animation-delay: 0.3s;
}

.delay-4 {
    animation-delay: 0.4s;
}

.delay-5 {
    animation-delay: 0.5s;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
    .nav {
        padding: 0 20px;
    }

    .nav-links {
        display: none;
    }

    .nav-search {
        display: none;
    }

    .hero {
        padding: 100px 24px 60px;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .section {
        padding: 60px 24px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .cta-card {
        flex-direction: column;
        padding: 40px 28px;
        gap: 32px;
    }

    .cta-image {
        flex: none;
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}