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

:root {
    /* Mobile app color palette */
    --color-bg-deep: #0B0D1A;
    --color-bg-base: #111326;
    --color-bg-surface: #1A1D35;
    --color-bg-elevated: #232847;
    --color-accent-primary: #7C5CFC;
    --color-accent-magenta: #E040A0;
    --color-accent-secondary: #5B8DEF;
    --color-accent-teal: #34D399;
    --color-text-primary: #E8EAF6;
    --color-text-secondary: #9CA3C2;
    --color-text-muted: #6B7194;
    --color-glass-tint: rgba(17, 19, 38, 0.55);
    --color-glass-border: rgba(139, 148, 196, 0.18);
    --color-success: #34D399;
    --color-success-bg: rgba(52, 211, 153, 0.12);
    --color-error: #F87171;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    --max-width: 960px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

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

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

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

/* ── Dreamy Background ──────────────────────────────── */
.dreamy-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    transform: translateZ(0);
    will-change: transform;
}

/* Stars */
.star {
    position: absolute;
    background: #E8EAF6;
    border-radius: 50%;
}

.star--static {
    opacity: 0.5;
}

.star--twinkle {
    animation: twinkle var(--dur) var(--delay) infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    40% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 0.05; transform: scale(0.5); }
    55% { opacity: 0.05; transform: scale(0.5); }
    65% { opacity: 0.8; transform: scale(1); }
}

/* Moon */
.moon {
    position: absolute;
    top: 6%;
    right: 12%;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: radial-gradient(circle, #E8EAF6 0%, rgba(232, 234, 246, 0.6) 50%, transparent 70%);
}

.moon::after {
    content: '';
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124, 92, 252, 0.35) 0%, transparent 70%);
    animation: moonGlow 4s ease-in-out infinite;
}

@keyframes moonGlow {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.45; }
}

/* Clouds */
.cloud {
    position: absolute;
    filter: blur(40px);
    opacity: var(--cloud-opacity, 0.5);
    border-radius: 50%;
    animation: cloudDrift var(--cloud-dur) ease-in-out infinite;
    transform: translateZ(0);
    will-change: transform;
}

.cloud--1 {
    width: 260px;
    height: 100px;
    top: 10%;
    left: -5%;
    background: radial-gradient(ellipse, rgba(124, 92, 252, 0.4) 0%, rgba(224, 64, 160, 0.2) 50%, transparent 70%);
    --cloud-opacity: 0.6;
    --cloud-dur: 16s;
}

.cloud--2 {
    width: 220px;
    height: 80px;
    top: 42%;
    right: -8%;
    background: radial-gradient(ellipse, rgba(224, 64, 160, 0.35) 0%, rgba(91, 141, 239, 0.2) 50%, transparent 70%);
    --cloud-opacity: 0.45;
    --cloud-dur: 20s;
    animation-direction: reverse;
}

.cloud--3 {
    width: 240px;
    height: 90px;
    top: 70%;
    left: 5%;
    background: radial-gradient(ellipse, rgba(91, 141, 239, 0.35) 0%, rgba(124, 92, 252, 0.2) 50%, transparent 70%);
    --cloud-opacity: 0.4;
    --cloud-dur: 14s;
}

@keyframes cloudDrift {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(35px); }
}

/* ── Glass Card ─────────────────────────────────────── */
.glass-card {
    background: #161930;
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 16px rgba(124, 92, 252, 0.08);
}

/* ── Header ─────────────────────────────────────────── */
.site-header {
    position: relative;
    z-index: 10;
    border-bottom: 1px solid var(--color-glass-border);
    background: rgba(11, 13, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transform: translateZ(0);
    will-change: transform;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 3.5rem;
}

.logo {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-accent-primary);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.15s;
}

.nav-link:hover {
    color: var(--color-accent-primary);
}

/* ── Main Content (above background) ─────────────── */
main {
    position: relative;
    z-index: 1;
    isolation: isolate;
}

/* ── Hero ────────────────────────────────────────────── */
.hero {
    padding: 6rem 0 4rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--color-text-primary);
}

.hero h1 .accent {
    animation:
        neonColor 6s ease-in-out infinite,
        neonGlow 8s ease-in-out infinite;
}

@keyframes neonColor {
    0%, 100% { color: #7C5CFC; }
    33% { color: #E040A0; }
    66% { color: #B070FF; }
}

@keyframes neonGlow {
    0%, 100% {
        text-shadow:
            0 0 6px rgba(124, 92, 252, 0.5),
            0 0 16px rgba(124, 92, 252, 0.3),
            0 0 40px rgba(124, 92, 252, 0.15);
    }
    25% {
        text-shadow:
            0 0 8px rgba(224, 64, 160, 0.9),
            0 0 24px rgba(224, 64, 160, 0.6),
            0 0 56px rgba(224, 64, 160, 0.3),
            0 0 90px rgba(224, 64, 160, 0.15);
    }
    50% {
        text-shadow:
            0 0 8px rgba(176, 112, 255, 1),
            0 0 24px rgba(124, 92, 252, 0.7),
            0 0 56px rgba(176, 112, 255, 0.45),
            0 0 90px rgba(124, 92, 252, 0.2);
    }
    75% {
        text-shadow:
            0 0 8px rgba(192, 80, 208, 0.9),
            0 0 24px rgba(192, 80, 208, 0.5),
            0 0 56px rgba(224, 64, 160, 0.35),
            0 0 90px rgba(192, 80, 208, 0.15);
    }
}

.hero-subtitle {
    margin-top: 1.25rem;
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

/* ── Brand: Dreamers ─────────────────────────────────── */
.brand-dreamers {
    color: var(--color-accent-magenta);
}

/* ── Buttons ─────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
    cursor: pointer;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--color-accent-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(124, 92, 252, 0.25);
}

.btn-primary:hover {
    background: #6A4AE8;
    box-shadow: 0 6px 20px rgba(124, 92, 252, 0.35);
}

.btn-secondary {
    background: rgba(124, 92, 252, 0.15);
    color: var(--color-accent-primary);
    border: 1px solid rgba(124, 92, 252, 0.3);
}

.btn-secondary:hover {
    background: rgba(124, 92, 252, 0.25);
}

/* ── Product Section ─────────────────────────────────── */
.product {
    padding: 4rem 0;
}

.section-heading {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-align: center;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.section-intro {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 560px;
    margin: 0 auto 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature {
    padding: 1.75rem;
}

.feature h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.feature .feature-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    display: block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 10px;
}

.feature--capture .feature-icon {
    background: rgba(124, 92, 252, 0.15);
    color: var(--color-accent-primary);
}

.feature--explore .feature-icon {
    background: rgba(224, 64, 160, 0.15);
    color: var(--color-accent-magenta);
}

.feature--connect .feature-icon {
    background: rgba(52, 211, 153, 0.15);
    color: var(--color-accent-teal);
}

.feature p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ── Beta Signup ─────────────────────────────────────── */
.beta-signup {
    padding: 4rem 0;
}

.beta-card {
    padding: 3rem 2.5rem;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.beta-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.beta-card > p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.75rem;
    line-height: 1.6;
}

.beta-form .form-row {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.beta-form input {
    flex: 1;
    min-width: 160px;
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    border: 1px solid var(--color-glass-border);
    border-radius: 8px;
    background: rgba(17, 19, 38, 0.6);
    color: var(--color-text-primary);
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.beta-form input:focus {
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 92, 252, 0.15);
}

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

.beta-form .btn {
    white-space: nowrap;
}

.form-error {
    color: var(--color-error);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.success-message {
    background: var(--color-success-bg);
    border: 1px solid rgba(52, 211, 153, 0.3);
    border-radius: 8px;
    padding: 1rem 1.5rem;
}

.success-message p {
    color: var(--color-success);
    font-weight: 500;
    font-size: 0.95rem;
}

/* ── Clinicians ──────────────────────────────────────── */
.clinicians {
    padding: 4rem 0;
}

.clinician-card {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 3rem 2.5rem;
}

.clinician-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.clinician-card p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
    margin-bottom: 1.5rem;
}

/* ── Footer ──────────────────────────────────────────── */
.site-footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--color-glass-border);
    padding: 2rem 0;
    text-align: center;
}

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

/* ── Separator ──────────────────────────────────────── */
.section-sep {
    border: none;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(124, 92, 252, 0.3) 30%,
        rgba(224, 64, 160, 0.3) 70%,
        transparent
    );
    max-width: 600px;
    margin: 0 auto;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
    .hero {
        padding: 4rem 0 3rem;
    }

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

    .hero-subtitle {
        font-size: 1.05rem;
    }

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

    .beta-card,
    .clinician-card {
        padding: 2rem 1.5rem;
    }

    .beta-form .form-row {
        flex-direction: column;
    }

    .beta-form input {
        min-width: 100%;
    }

    .moon {
        width: 32px;
        height: 32px;
    }
}