/* ============================================
   STATION SAATHI — LANDING PAGE CSS
   Premium Waitlist + Benefits + Use Cases
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+Devanagari:wght@400;600;700;800;900&display=swap');

/* ============ VARIABLES ============ */
:root {
    --bg: #06080F;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --text: #F1F3F8;
    --text-secondary: #9BA4B5;
    --text-muted: #5C6478;
    --accent: #4F8CFF;
    --accent-2: #38BDF8;
    --accent-glow: rgba(79, 140, 255, 0.2);
    --gold: #D4AF37;
    --border: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(79, 140, 255, 0.25);
    --gradient-hero: linear-gradient(135deg, #0A1628 0%, #0D1B3E 40%, #06080F 100%);
    --gradient-accent: linear-gradient(135deg, #4F8CFF, #38BDF8);
    --gradient-gold: linear-gradient(135deg, #D4AF37, #F0D060);
    --shadow-glow: 0 0 60px rgba(79, 140, 255, 0.12);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-full: 9999px;
    --section-gap: 120px;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', 'Noto Sans Devanagari', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul {
    list-style: none;
}

/* ============ NAV ============ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(6, 8, 15, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}

.nav.scrolled {
    background: rgba(6, 8, 15, 0.95);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.nav-logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #FFF;
    letter-spacing: -0.3px;
}

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

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: #FFF;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 22px;
    background: var(--gradient-accent);
    color: #FFF;
    border: none;
    border-radius: var(--radius-full);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 25px rgba(79, 140, 255, 0.35);
}

.mobile-nav-btn {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: #FFF;
    cursor: pointer;
    border-radius: var(--radius-sm);
}

.mobile-nav-btn svg {
    width: 24px;
    height: 24px;
}

/* ============ HERO SECTION ============ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 140px 24px 80px;
    background: var(--gradient-hero);
    overflow: hidden;
}

/* Animated glow orbs */
.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79, 140, 255, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(40px, -40px);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: rgba(79, 140, 255, 0.1);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-2);
    margin-bottom: 28px;
    animation: fadeInDown 0.6s ease;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {

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

    50% {
        opacity: 0.5;
        transform: scale(1.3);
    }
}

.hero-title {
    font-family: 'Noto Sans Devanagari', 'Inter', sans-serif;
    font-size: 64px;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 8px;
    padding-top: 10px;
    overflow: visible;
    background: linear-gradient(135deg, #FFFFFF 30%, #4F8CFF 70%, #38BDF8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
    font-size: 15px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.6s ease 0.3s both;
}

/* Waitlist Form */
.waitlist-form {
    display: flex;
    align-items: center;
    gap: 0;
    max-width: 480px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-full);
    padding: 5px;
    transition: border-color var(--transition);
    animation: fadeInUp 0.6s ease 0.4s both;
}

.waitlist-form:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.waitlist-input {
    flex: 1;
    padding: 14px 20px;
    background: transparent;
    border: none;
    outline: none;
    font-family: inherit;
    font-size: 15px;
    color: #FFF;
    min-width: 0;
}

.waitlist-input::placeholder {
    color: var(--text-muted);
}

.waitlist-btn {
    padding: 12px 28px;
    background: var(--gradient-accent);
    color: #FFF;
    border: none;
    border-radius: var(--radius-full);
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.waitlist-btn:hover {
    box-shadow: 0 4px 20px rgba(79, 140, 255, 0.4);
    transform: scale(1.03);
}

.waitlist-note {
    font-size: 13px;
    color: var(--text-muted);
    animation: fadeInUp 0.6s ease 0.5s both;
}

.waitlist-note span {
    color: var(--accent-2);
    font-weight: 500;
}

/* Success message */
.waitlist-success {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: rgba(0, 184, 148, 0.12);
    border: 1px solid rgba(0, 184, 148, 0.3);
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    color: #00D2A0;
    max-width: 480px;
    margin: 0 auto;
    animation: fadeInUp 0.4s ease;
}

.waitlist-success.show {
    display: inline-flex;
}

/* ============ TRUST BAR ============ */
.trust-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    padding: 40px 24px;
    border-bottom: 1px solid var(--border);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

.trust-item svg {
    width: 18px;
    height: 18px;
    stroke: var(--accent);
}

.trust-number {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

/* ============ SPECIALIZED EDGE ============ */
.edge-section {
    padding-top: 80px;
    padding-bottom: 80px;
}

.edge-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.edge-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.edge-rows {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.edge-row {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    transition: all 0.3s ease;
}

.edge-row:hover {
    border-color: var(--border-accent);
    background: rgba(255, 255, 255, 0.04);
}

.edge-row-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.edge-row-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.edge-row-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--accent);
}

.edge-row-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
}

.edge-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.edge-card {
    padding: 16px 20px;
    border-radius: 10px;
    border: 1px solid transparent;
}

.edge-card-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.edge-card-text {
    font-size: 14px;
    line-height: 1.5;
}

/* Station Saathi card */
.edge-ours {
    background: rgba(79, 140, 255, 0.08);
    border-color: rgba(79, 140, 255, 0.2);
}

.edge-ours .edge-card-label {
    color: var(--accent);
}

.edge-ours .edge-card-text {
    color: var(--text);
}

.edge-check {
    font-size: 14px;
}

/* General AI card */
.edge-theirs {
    background: rgba(255, 255, 255, 0.02);
    border-color: var(--border);
}

.edge-theirs .edge-card-label {
    color: var(--text-muted);
}

.edge-theirs .edge-card-text {
    color: var(--text-secondary);
}

.edge-cross {
    color: #FF6B6B;
    font-size: 14px;
    font-weight: 700;
}

/* ============ SECTION BASE ============ */
.section {
    padding: 100px 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(79, 140, 255, 0.08);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-title .highlight {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 50px;
}

/* ============ BENEFITS ============ */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

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

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.benefit-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

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

.benefit-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 22px;
}

.benefit-icon.blue {
    background: rgba(79, 140, 255, 0.12);
    color: #4F8CFF;
}

.benefit-icon.green {
    background: rgba(0, 184, 148, 0.12);
    color: #00B894;
}

.benefit-icon.orange {
    background: rgba(255, 107, 53, 0.12);
    color: #FF6B35;
}

.benefit-icon.purple {
    background: rgba(123, 47, 247, 0.12);
    color: #7B2FF7;
}

.benefit-icon.cyan {
    background: rgba(56, 189, 248, 0.12);
    color: #38BDF8;
}

.benefit-icon.gold {
    background: rgba(212, 175, 55, 0.12);
    color: #D4AF37;
}

.benefit-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.benefit-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ============ USE CASES ============ */
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.usecase-card {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s ease;
}

.usecase-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

.usecase-num {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 10px;
    background: rgba(79, 140, 255, 0.1);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 800;
    color: var(--accent);
}

.usecase-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.usecase-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============ HOW IT WORKS ============ */
.hiw-steps {
    display: flex;
    gap: 0;
    position: relative;
}

.hiw-step {
    flex: 1;
    text-align: center;
    padding: 0 20px;
    position: relative;
}

/* Connector line */
.hiw-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 32px;
    right: -10%;
    width: 20%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
}

.hiw-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(79, 140, 255, 0.1);
    border: 2px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    transition: all 0.3s ease;
}

.hiw-step:hover .hiw-circle {
    background: var(--gradient-accent);
    border-color: transparent;
    transform: scale(1.1);
    box-shadow: 0 0 30px var(--accent-glow);
}

.hiw-step-num {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.hiw-step-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.hiw-step-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============ FINAL CTA ============ */
.cta-section {
    text-align: center;
    padding: 100px 24px;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 400px;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse, rgba(79, 140, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.cta-title {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cta-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 36px;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ============ FOOTER ============ */
.footer {
    border-top: 1px solid var(--border);
    padding: 60px 24px 40px;
    max-width: 1100px;
    margin: 0 auto;
    font-size: 14px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand .nav-logo {
    margin-bottom: 20px;
    display: inline-flex;
}

.footer-brand-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 14px;
}

.footer-columns {
    display: flex;
    gap: 80px;
    flex-wrap: wrap;
}

.footer-col {
    display: flex;
    flex-direction: column;
}

.footer-col-title {
    color: #FFF;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-col-links {
    display: flex;
    flex-direction: column;
    gap: 14px;
    list-style: none;
    /* Just in case */
    padding: 0;
    margin: 0;
}

.footer-col-links a {
    color: var(--text-secondary);
    transition: color 0.2s;
    font-size: 14px;
}

.footer-col-links a:hover {
    color: #FFF;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 13px;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-indie a {
    color: #FFF;
    font-weight: 500;
    transition: color 0.2s;
}

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

.footer-copyright,
.footer-indie,
.footer-madein {
    margin: 0;
}

/* ============ ANIMATIONS ============ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }

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

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ============ MOBILE (<768) ============ */
@media (max-width: 768px) {
    .nav {
        padding: 12px 16px;
    }

    .nav-links {
        display: none;
    }

    .mobile-nav-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .hero {
        padding: 120px 20px 60px;
        min-height: auto;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 11px;
        letter-spacing: 2px;
    }

    .hero-desc {
        font-size: 15px;
    }

    .waitlist-form {
        flex-direction: column;
        border-radius: var(--radius);
        padding: 8px;
    }

    .waitlist-input {
        padding: 14px 16px;
        width: 100%;
        text-align: center;
    }

    .waitlist-btn {
        width: 100%;
        padding: 14px;
        border-radius: var(--radius-sm);
    }

    .trust-bar {
        flex-wrap: wrap;
        gap: 20px;
        padding: 30px 16px;
    }

    .edge-title {
        font-size: 26px;
    }

    .edge-compare {
        grid-template-columns: 1fr;
    }

    .edge-row {
        padding: 18px 16px;
    }

    .edge-row-title {
        font-size: 14px;
    }

    .section {
        padding: 60px 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-desc {
        font-size: 15px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .usecases-grid {
        grid-template-columns: 1fr;
    }

    .hiw-steps {
        flex-direction: column;
        gap: 28px;
    }

    .hiw-step::after {
        display: none;
    }

    .hiw-step {
        text-align: left;
        display: flex;
        gap: 16px;
        padding: 0;
    }

    .hiw-circle {
        margin: 0;
        min-width: 52px;
        height: 52px;
    }

    .hiw-step-content {
        text-align: left;
    }

    .cta-title {
        font-size: 28px;
    }

    .cta-desc {
        font-size: 15px;
    }

    .footer {
        padding: 40px 16px 30px;
    }

    .footer-top {
        flex-direction: column;
        gap: 40px;
        margin-bottom: 40px;
    }

    .footer-columns {
        flex-direction: column;
        gap: 32px;
        width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
}

/* ============ TABLET (769-1023) ============ */
@media (min-width: 769px) and (max-width: 1023px) {
    .hero-title {
        font-size: 48px;
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-title {
        font-size: 34px;
    }
}