/* ═══════════════════════════════════════════════════════════════════
   Co-Pilot Landing Page — Dark Futuristic Theme
   ═══════════════════════════════════════════════════════════════════ */

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

:root {
    --bg: #13161d;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --text: #e0e0f0;
    --text-muted: #8888aa;
    --gradient: linear-gradient(135deg, #4f7cff, #a855f7, #06d6a0);
    --gradient-btn: linear-gradient(135deg, #4f7cff 0%, #a855f7 50%, #06b6d4 100%);
    --glow-blue: rgba(79, 124, 255, 0.3);
    --glow-purple: rgba(168, 85, 247, 0.3);
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius: 16px;
    --radius-sm: 10px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

img {
    max-width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Gradient Text ─── */
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ─── Glassmorphism Card ─── */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.35s ease;
}

.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(79, 124, 255, 0.08), 0 0 0 1px rgba(168, 85, 247, 0.1);
}

.glass-card-glow {
    box-shadow: 0 0 40px rgba(79, 124, 255, 0.15), 0 0 80px rgba(168, 85, 247, 0.08);
}

/* ─── Buttons ─── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--gradient-btn);
    background-size: 200% 200%;
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary:hover {
    background-position: 100% 0;
    box-shadow: 0 8px 30px var(--glow-blue), 0 8px 30px var(--glow-purple);
    transform: translateY(-2px);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: transparent;
    color: var(--text);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    border: 1px solid var(--border-hover);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: #a855f7;
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.15);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 18px 42px;
    font-size: 1.15rem;
}

/* ═══════════════════════════════════════════ NAVBAR ═══════════════════════════════════════════ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0;
    transition: all 0.3s ease;
    background: transparent;
    display: flex;
    flex-direction: column;
}

.navbar.scrolled {
    background: transparent;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0;
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.nav-logo {
    display: flex;
    align-items: center;
    line-height: 0;
    flex-shrink: 0;
    justify-self: start;
    margin-left: 0.5cm;
}

.nav-logo img {
    height: 102px;
    width: auto;
    display: block;
}

.nav-bottom-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 24px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 36px;
    max-height: 120px;
    align-items: center;
    justify-self: center;
}

.nav-links a {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s;
}

.nav-links a:hover {
    color: #fff;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-self: start;
}

.btn-login {
    padding: 8px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s;
}

.btn-login:hover {
    color: #fff;
}

.btn-cta-nav {
    padding: 8px 24px;
    background: var(--gradient-btn);
    background-size: 200% 200%;
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 50px;
    transition: all 0.3s;
}

.btn-cta-nav:hover {
    background-position: 100% 0;
    box-shadow: 0 4px 20px var(--glow-blue);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 26px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(19, 22, 29, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.mobile-menu.active {
    display: flex;
    opacity: 1;
    pointer-events: all;
}

.mobile-menu ul {
    list-style: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mobile-menu a {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    transition: color 0.3s;
}

.mobile-menu a:hover {
    color: #a855f7;
}

.mobile-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

/* ═══════════════════════════════════════════ HERO ═══════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 185px 24px 80px;
    overflow: hidden;
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-gradient-bg {
    position: absolute;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 900px;
    background: radial-gradient(ellipse at center, rgba(79, 124, 255, 0.12) 0%, rgba(168, 85, 247, 0.06) 40%, transparent 70%);
    z-index: 0;
    animation: pulseGlow 8s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
    0% { opacity: 0.6; transform: translateX(-50%) scale(1); }
    100% { opacity: 1; transform: translateX(-50%) scale(1.15); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.trust-badges {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--text-muted);
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 50px;
}

.badge i {
    color: #06d6a0;
    font-size: 0.9rem;
}

/* ═══════════════════════════════════════════ SECTIONS (shared) ═══════════════════════════════════════════ */
.section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-sub {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
}

/* Card icons */
.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(79, 124, 255, 0.15), rgba(168, 85, 247, 0.15));
    margin-bottom: 20px;
    font-size: 1.4rem;
    color: #a78bfa;
}

/* ═══════════════════════════════════════════ PROBLEM ═══════════════════════════════════════════ */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.pain-card {
    padding: 32px 24px;
    text-align: center;
}

.pain-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.pain-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ═══════════════════════════════════════════ SOLUTION ═══════════════════════════════════════════ */
.comparison {
    display: flex;
    align-items: center;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.comparison-side {
    flex: 1;
    max-width: 420px;
    min-width: 280px;
}

.comparison-side .glass-card {
    padding: 40px 32px;
    text-align: center;
}

.comparison-label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-align: center;
}

.comparison-label-glow {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.chaos-icons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: #ff6b6b;
    opacity: 0.7;
}

.copilot-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.comparison-side h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.comparison-side p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.comparison-arrow {
    font-size: 2rem;
    color: var(--text-muted);
    opacity: 0.4;
    flex-shrink: 0;
}

/* ═══════════════════════════════════════════ FEATURES ═══════════════════════════════════════════ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px 24px;
}

.feature-card h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ═══════════════════════════════════════════ INTEGRATIONS ═══════════════════════════════════════════ */
.integrations-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.integration-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 24px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
    cursor: default;
}

.integration-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.integration-item i {
    font-size: 1.8rem;
    color: #a78bfa;
}

.integration-item span {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ═══════════════════════════════════════════ USPs ═══════════════════════════════════════════ */
.usps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.usp-card {
    padding: 40px 32px;
    text-align: center;
}

.usp-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(79, 124, 255, 0.12), rgba(168, 85, 247, 0.12));
    font-size: 1.8rem;
    color: #a78bfa;
}

.usp-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.usp-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ═══════════════════════════════════════════ PRICING ═══════════════════════════════════════════ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    padding: 40px 28px;
    text-align: center;
    position: relative;
}

.pricing-popular {
    border-color: rgba(168, 85, 247, 0.4);
    box-shadow: 0 0 40px rgba(168, 85, 247, 0.1), 0 0 80px rgba(79, 124, 255, 0.05);
    transform: scale(1.04);
}

.pricing-popular:hover {
    transform: scale(1.04) translateY(-4px);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--gradient-btn);
    color: #fff;
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 50px;
    white-space: nowrap;
}

.pricing-name {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.pricing-price {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    -webkit-text-fill-color: var(--text-muted);
}

.pricing-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li i {
    font-size: 0.85rem;
    color: #06d6a0;
    width: 18px;
    text-align: center;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    opacity: 0.5;
}

.pricing-features li.disabled i {
    color: #ff6b6b;
}

.btn-pricing {
    width: 100%;
    justify-content: center;
    padding: 12px 24px;
}

/* ═══════════════════════════════════════════ FINAL CTA ═══════════════════════════════════════════ */
.section-final-cta {
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(79, 124, 255, 0.06) 0%, transparent 60%);
}

.final-cta-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 16px;
}

.final-cta-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 36px;
}

/* ═══════════════════════════════════════════ FOOTER ═══════════════════════════════════════════ */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer h4 {
    font-size: 0.95rem;
    margin-bottom: 20px;
    color: var(--text);
}

.footer ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer a {
    font-size: 0.88rem;
    color: var(--text-muted);
    transition: color 0.3s;
}

.footer a:hover {
    color: #a78bfa;
}

.social-icons {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.social-icons a {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: all 0.3s;
}

.social-icons a:hover {
    color: #a855f7;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-made {
    margin-top: 8px;
    font-size: 0.82rem;
}

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

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

/* ═══════════════════════════════════════════ RESPONSIVE ═══════════════════════════════════════════ */

/* Tablet */
@media (max-width: 1024px) {
    .pain-grid,
    .features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .integrations-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .usps-grid {
        grid-template-columns: 1fr;
        max-width: 540px;
        margin: 0 auto;
    }

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

    .pricing-popular {
        transform: scale(1);
    }

    .pricing-popular:hover {
        transform: translateY(-4px);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .section {
        padding: 80px 0;
    }

    .hero {
        padding: 180px 20px 60px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .pain-grid,
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 380px;
        margin: 0 auto;
    }

    .integrations-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .comparison {
        flex-direction: column;
        gap: 20px;
    }

    .comparison-arrow {
        transform: rotate(90deg);
    }

    .comparison-side {
        width: 100%;
    }

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

    .trust-badges {
        gap: 12px;
    }

    .badge {
        font-size: 0.75rem;
        padding: 6px 12px;
    }
}

@media (max-width: 480px) {
    .integrations-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }
}

/* ─── Contact Form ─── */
.contact-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
}

.contact-form-card .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.contact-form-card .form-group {
    margin-bottom: 1rem;
}

.contact-form-card label {
    display: block;
    color: var(--text-muted);
    font-size: .85rem;
    margin-bottom: .4rem;
    font-family: var(--font-body);
}

.contact-form-card input,
.contact-form-card textarea {
    width: 100%;
    padding: .75rem 1rem;
    background: rgba(255,255,255,.06);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font-body);
    font-size: .95rem;
    transition: border-color .2s, box-shadow .2s;
}

.contact-form-card input:focus,
.contact-form-card textarea:focus {
    outline: none;
    border-color: #4f7cff;
    box-shadow: 0 0 0 3px var(--glow-blue);
}

.contact-form-card input.invalid,
.contact-form-card textarea.invalid {
    border-color: #ff6b6b;
    box-shadow: 0 0 0 3px rgba(255,59,48,.2);
}

.contact-form-card textarea {
    resize: vertical;
}

@media (max-width: 600px) {
    .contact-form-card .form-row {
        grid-template-columns: 1fr;
    }
}

@keyframes successPop {
    0% { transform: scale(0.8); opacity: 0; }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); opacity: 1; }
}

#contactSuccess {
    animation: successPop .4s ease-out;
}