/* ═══ Absolute RC Landing Page ═════════════════════════════ */

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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ── Buttons ──────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-lg { padding: 16px 36px; font-size: 17px; }
.btn-block { display: block; width: 100%; }

/* ── Nav ──────────────────────────────────────────────── */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1080px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
    height: 60px;
}
.nav-logo { font-size: 20px; font-weight: 700; color: var(--text); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--text-light); text-decoration: none; font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
    background: var(--primary); color: #fff !important; padding: 8px 20px;
    border-radius: var(--radius); font-weight: 600 !important;
}
.nav-cta:hover { background: var(--primary-dark); }

/* ── Hero Message Banner ──────────────────────────────── */
.hero-banner {
    position: fixed; top: 60px; left: 0; right: 0; z-index: 99;
    padding: 10px 24px;
    text-align: center; font-size: 14px; font-weight: 600;
}
.hero-banner-info    { background: #dbeafe; color: #1e40af; }
.hero-banner-warning { background: #fef3c7; color: #92400e; }
.hero-banner-success { background: #d1fae5; color: #065f46; }

body.has-hero-banner .hero { padding-top: 156px; }

/* ── Trial Badge ─────────────────────────────────────── */
.trial-badge {
    display: inline-block; margin-top: 6px;
    padding: 3px 10px; border-radius: 12px;
    font-size: 12px; font-weight: 600;
    background: #dbeafe; color: #1e40af;
}

/* ── Hero ─────────────────────────────────────────────── */
.hero {
    padding: 120px 24px 40px;
    text-align: center;
    background: linear-gradient(180deg, #f0f7ff 0%, #fff 100%);
}
.hero-inner { max-width: 720px; margin: 0 auto; }
.hero h1 { font-size: 48px; line-height: 1.15; font-weight: 800; margin-bottom: 20px; }
.hero-accent { color: var(--primary); }
.hero-sub { font-size: 18px; color: var(--text-light); margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* ── Features ─────────────────────────────────────────── */
.features { padding: 48px 0; background: var(--bg); }
.features h2 { text-align: center; font-size: 32px; margin-bottom: 32px; }
.feature-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
    padding: 28px; border: 1px solid var(--border); border-radius: var(--radius);
    text-align: center; transition: box-shadow 0.15s ease;
}
.feature-card:hover { box-shadow: var(--shadow-lg); }
.feature-icon { font-size: 36px; margin-bottom: 12px; }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-light); }

/* ── Pricing ──────────────────────────────────────────── */
.pricing { padding: 80px 0; background: var(--bg-alt); }
.pricing h2 { text-align: center; font-size: 32px; margin-bottom: 8px; }
.pricing-sub { text-align: center; color: var(--text-light); margin-bottom: 48px; }
.pricing-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    align-items: start;
}
.price-card {
    background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px; text-align: center; position: relative;
    transition: box-shadow 0.15s ease;
}
.price-card:hover { box-shadow: var(--shadow-lg); }
.price-card-featured {
    border-color: var(--primary); box-shadow: var(--shadow-lg);
    transform: scale(1.03);
}
.price-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--primary); color: #fff; padding: 4px 16px;
    border-radius: 12px; font-size: 12px; font-weight: 600;
}
.price-header h3 { font-size: 20px; margin-bottom: 8px; }
.price-amount { font-size: 40px; font-weight: 800; color: var(--text); }
.price-period { font-size: 14px; color: var(--text-light); margin-bottom: 24px; }
.price-features {
    list-style: none; text-align: left; margin-bottom: 28px;
}
.price-features li {
    padding: 8px 0; border-bottom: 1px solid var(--border);
    font-size: 14px; color: var(--text-light);
}
.price-features li::before { content: '\2713 '; color: var(--primary); font-weight: 700; margin-right: 8px; }

/* ── Current Plan Highlight ───────────────────────────── */
.price-card-current {
    border-color: #16a34a; box-shadow: 0 0 0 2px #16a34a33, var(--shadow-lg);
}
.price-badge-current {
    background: #16a34a;
}
.btn-muted {
    background: var(--bg-alt); color: var(--text-light); border-color: var(--border);
    cursor: default; pointer-events: none;
}

/* ── Tier Accent Frames ──────────────────────────────── */
.price-card:nth-child(2) {
    border-color: #c0c0c0;
}
.price-card:nth-child(2) .price-amount { color: #6b6b6b; }
.price-card:nth-child(3) {
    border-color: #d4a800;
}
.price-card:nth-child(3) .price-amount { color: #8d6e00; }

/* ── Social Proof ────────────────────────────────────── */
.social-proof { padding: 48px 0; background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.proof-grid { display: flex; justify-content: center; gap: 64px; text-align: center; }
.proof-number { font-size: 40px; font-weight: 800; color: var(--primary); }
.proof-label { font-size: 14px; color: var(--text-light); margin-top: 4px; }

/* ── Devices ─────────────────────────────────────────── */
.devices { padding: 64px 0; background: var(--bg); text-align: center; }
.devices h2 { font-size: 32px; margin-bottom: 8px; }
.devices-sub { color: var(--text-light); margin-bottom: 36px; }
.devices-grid { display: flex; justify-content: center; gap: 48px; margin-bottom: 16px; }
.device-item { text-align: center; }
.device-icon { font-size: 48px; margin-bottom: 8px; }
.device-name { font-size: 14px; font-weight: 600; color: var(--text); }
.devices-note { font-size: 13px; color: var(--text-light); }

/* ── From Mobile ─────────────────────────────────────── */
.from-mobile { padding: 48px 0; background: var(--bg-alt); }
.from-mobile-inner { max-width: 600px; margin: 0 auto; text-align: center; }
.from-mobile h2 { font-size: 24px; margin-bottom: 12px; }
.from-mobile p { font-size: 15px; color: var(--text-light); line-height: 1.7; }

/* ── FAQ ─────────────────────────────────────────────── */
.faq { padding: 64px 0; background: var(--bg); }
.faq h2 { text-align: center; font-size: 32px; margin-bottom: 36px; }
.faq-list { max-width: 680px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item summary {
    padding: 18px 0; font-size: 16px; font-weight: 600; cursor: pointer;
    list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 20px; color: var(--text-light); font-weight: 400; }
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { padding: 0 0 18px; font-size: 14px; color: var(--text-light); line-height: 1.7; }
.faq-item a { color: var(--primary); }

/* ── Login ────────────────────────────────────────────── */
.login-section { padding: 80px 0; background: var(--bg); }
.login-box {
    max-width: 440px; margin: 0 auto; text-align: center;
    padding: 40px; border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.login-box h2 { font-size: 24px; margin-bottom: 8px; }
.login-box > p { color: var(--text-light); font-size: 14px; margin-bottom: 24px; }
.login-form { text-align: left; }
.form-group { margin-bottom: 16px; }
.form-group input[type="email"] {
    width: 100%; padding: 12px 16px; border: 1px solid var(--border);
    border-radius: var(--radius); font-size: 15px; outline: none;
    transition: border-color 0.15s;
}
.form-group input[type="email"]:focus { border-color: var(--primary); }
.login-message {
    margin-top: 16px; text-align: center; font-size: 14px; min-height: 20px;
}
.login-message.success { color: #16a34a; }
.login-message.error { color: #dc2626; }

.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 14px; }
.alert-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }

/* ── Footer ───────────────────────────────────────────── */
.footer {
    padding: 32px 0; text-align: center;
    border-top: 1px solid var(--border); color: var(--text-light); font-size: 13px;
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    .hero-sub { font-size: 16px; }
    .feature-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .price-card-featured { transform: none; }
    .nav-links a:not(.nav-cta) { display: none; }
    .proof-grid { gap: 32px; flex-wrap: wrap; }
    .proof-number { font-size: 32px; }
    .devices-grid { gap: 24px; flex-wrap: wrap; }
}

/* ═══ Dark Theme Variant ════════════════════════════════════
   Toggle by adding class "dark" to <body>.
   Same layout, dark navy/slate palette.
   ═══════════════════════════════════════════════════════════ */
body.dark {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --bg: #0f172a;
    --bg-alt: #1e293b;
    --text: #f1f5f9;
    --text-light: #94a3b8;
    --border: #334155;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.4);
}
body.dark .nav { background: rgba(15,23,42,0.95); }
body.dark .hero { background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%); }
body.dark .price-card { background: #1e293b; }
body.dark .price-card-featured { border-color: var(--primary); }
body.dark .price-amount { color: #f1f5f9; }
body.dark .price-card:nth-child(2) .price-amount { color: #c0c0c0; }
body.dark .price-card:nth-child(3) .price-amount { color: #f0c800; }
body.dark .login-box { background: #1e293b; }
body.dark .form-group input[type="email"] { background: #0f172a; color: #f1f5f9; border-color: #334155; }
body.dark .nav-logo { color: #f1f5f9; }
body.dark .nav-links a { color: #94a3b8; }
body.dark .nav-links a:hover { color: #f1f5f9; }
body.dark .feature-card { background: #1e293b; }
body.dark .btn-outline { color: #3b82f6; border-color: #3b82f6; }
body.dark .btn-outline:hover { background: #3b82f6; color: #fff; }
body.dark .btn-muted { background: #1e293b; color: #64748b; border-color: #334155; }
body.dark .hero-banner-info    { background: #1e3a5f; color: #93c5fd; }
body.dark .hero-banner-warning { background: #451a03; color: #fde68a; }
body.dark .hero-banner-success { background: #052e16; color: #86efac; }
body.dark .trial-badge { background: #1e3a5f; color: #93c5fd; }

/* ── Inline Hero Message (pricing section) ───────────── */
.hero-inline { font-weight: 600; }
.hero-inline-info    { color: #3b82f6; }
.hero-inline-warning { color: #f59e0b; }
.hero-inline-success { color: #10b981; }