/* Renario Solar — Design System v2 · Quiet Luxury */

:root {
  /* Premium-Clean (default) — Bone & Navy */
  --bg: #F2EEE5;                 /* warm bone / parchment */
  --bg-elev: #FAF7F0;            /* elevated card */
  --bg-sunken: #EAE4D6;          /* sunken / hairlines */
  --bg-dark: #0E1A2E;            /* deep navy (hero/footer only) */
  --bg-dark-2: #16243B;
  --fg: #1B2238;                 /* deep ink (slate-navy) */
  --fg-muted: #5A627A;
  --fg-subtle: #8B92A3;
  --fg-on-dark: #F2EEE5;
  --fg-on-dark-muted: #9FA8BD;
  --border: rgba(27, 34, 56, 0.12);
  --border-strong: rgba(27, 34, 56, 0.24);
  --border-dark: rgba(242, 238, 229, 0.10);
  --accent: oklch(0.72 0.13 70);          /* refined gold */
  --accent-2: oklch(0.58 0.14 55);        /* burnished gold */
  --accent-soft: oklch(0.93 0.05 80);
  --accent-fg: #1B2238;
  --champagne: oklch(0.86 0.06 75);
  --success: oklch(0.62 0.12 155);
  --hot: oklch(0.62 0.18 25);
  --warm: oklch(0.74 0.15 70);
  --cold: oklch(0.66 0.10 230);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(14, 26, 46, .04);
  --shadow: 0 8px 28px -10px rgba(14, 26, 46, .12), 0 2px 6px -2px rgba(14, 26, 46, .06);
  --shadow-lg: 0 30px 70px -24px rgba(14, 26, 46, .22), 0 10px 24px -8px rgba(14, 26, 46, .10);
  --shadow-gold: 0 18px 40px -16px color-mix(in oklab, var(--accent) 55%, transparent);
  --grad-hero: radial-gradient(140% 100% at 50% -10%, #1F3055 0%, #0E1A2E 55%, #08111F 100%);
  --grad-accent: linear-gradient(135deg, oklch(0.82 0.12 78), oklch(0.66 0.14 55));
  --grad-gold-line: linear-gradient(90deg, transparent, color-mix(in oklab, var(--accent) 60%, transparent), transparent);
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Fraunces", "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --noise:
    radial-gradient(rgba(27,34,56,0.025) 1px, transparent 1px) 0 0/3px 3px,
    radial-gradient(rgba(27,34,56,0.018) 1px, transparent 1px) 1px 2px/3px 3px;
}

/* Solar-Warm — slightly warmer parchment */
[data-theme="warm"] {
  --bg: #EFE7D3;
  --bg-elev: #F8F1DD;
  --bg-sunken: #E5D9BD;
  --fg: #271C0C;
  --fg-muted: #6B5A3A;
  --bg-dark: #1B1407;
  --bg-dark-2: #261C0E;
  --accent: oklch(0.74 0.16 65);
  --accent-2: oklch(0.60 0.18 50);
  --grad-hero: radial-gradient(140% 100% at 50% -10%, #3A2A14 0%, #1B1407 60%);
}

/* Tech-Dark — full dark mode (still consistent) */
[data-theme="tech"] {
  --bg: #0B1220;
  --bg-elev: #111A2C;
  --bg-sunken: #08101D;
  --fg: #E8ECF5;
  --fg-muted: #99A3B8;
  --fg-subtle: #6B748A;
  --fg-on-dark: #E8ECF5;
  --border: rgba(232, 236, 245, 0.10);
  --border-strong: rgba(232, 236, 245, 0.20);
  --border-dark: rgba(232, 236, 245, 0.10);
  --bg-dark: #060B16;
  --bg-dark-2: #0B1220;
  --accent: oklch(0.80 0.12 195);
  --accent-2: oklch(0.66 0.14 200);
  --accent-soft: oklch(0.30 0.06 200);
  --accent-fg: #060B16;
  --grad-hero: radial-gradient(140% 100% at 50% -10%, #14213B 0%, #060B16 60%);
  --grad-accent: linear-gradient(135deg, oklch(0.82 0.12 195), oklch(0.62 0.14 220));
  --shadow: 0 8px 28px -10px rgba(0,0,0,.6);
  --shadow-lg: 0 30px 70px -24px rgba(0,0,0,.7);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

/* Subtle parchment grain across the whole site */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background-image: var(--noise);
  opacity: 0.6;
  mix-blend-mode: multiply;
}
[data-theme="tech"] body::before { mix-blend-mode: screen; opacity: 0.3; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 2; }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 2; }

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.04;
  margin: 0;
  text-wrap: balance;
  font-feature-settings: "ss01", "salt";
}
h1 { font-size: clamp(44px, 6.4vw, 88px); letter-spacing: -0.035em; }
h2 { font-size: clamp(32px, 3.8vw, 54px); letter-spacing: -0.025em; }
h3 { font-size: clamp(20px, 1.8vw, 26px); letter-spacing: -0.012em; font-weight: 500; font-family: var(--font-sans); }
h4 { font-family: var(--font-sans); font-weight: 600; }
p { margin: 0; text-wrap: pretty; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before {
  content: ""; width: 18px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-2));
}
.eyebrow.on-dark { color: var(--accent); }
.eyebrow.on-dark::before { background: linear-gradient(90deg, transparent, var(--accent)); }

.lead { font-size: clamp(17px, 1.4vw, 21px); color: var(--fg-muted); line-height: 1.55; }

/* Italic display-italic for emphasis in headlines */
em.serif, h1 em, h2 em {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-2);
}
.section-dark em.serif, .section-dark h1 em, .section-dark h2 em,
.on-dark em.serif, .on-dark h1 em, .on-dark h2 em {
  color: var(--accent);
}

/* Hairline divider — gold whisper */
.hairline {
  height: 1px;
  background: var(--grad-gold-line);
  border: none; margin: 0;
  opacity: 0.5;
}

/* ===================== NAV ===================== */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in oklab, var(--bg) 75%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav.on-dark {
  background: #0A1426;
  border-bottom: 1px solid var(--border-dark);
  color: var(--fg-on-dark);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font-size: 14px; color: inherit; opacity: 0.72;
  transition: opacity 0.15s, color 0.15s;
  position: relative;
  padding: 4px 0;
}
.nav-links a:hover { opacity: 1; }
.nav-links a.active { opacity: 1; }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px;
  background: var(--accent);
}
.nav.on-dark .nav-links a { color: var(--fg-on-dark); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* Logo */
.logo {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-display);
  font-weight: 500; font-size: 19px; letter-spacing: -0.015em;
}
.logo span:last-child { font-feature-settings: "salt"; }
.logo-mark { width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; }

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(.2,.8,.2,1), background 0.18s, border-color 0.18s, box-shadow 0.18s;
  white-space: nowrap;
  font-family: inherit;
  letter-spacing: -0.005em;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--fg); color: var(--bg);
  box-shadow: 0 1px 0 rgba(255,255,255,.08) inset, 0 8px 20px -8px rgba(14,26,46,.4);
}
.btn-primary:hover { background: #0E1A2E; box-shadow: 0 1px 0 rgba(255,255,255,.08) inset, 0 12px 26px -8px rgba(14,26,46,.5); }
.nav.on-dark .btn-primary, .on-dark .btn-primary {
  background: var(--accent); color: var(--accent-fg);
  box-shadow: var(--shadow-gold);
}
.btn-accent {
  background: var(--grad-accent); color: var(--accent-fg);
  font-weight: 600;
  box-shadow: var(--shadow-gold), 0 1px 0 rgba(255,255,255,.25) inset;
  position: relative; overflow: hidden;
}
.btn-accent::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}
.btn-accent:hover::after { transform: translateX(100%); }
.btn-ghost {
  background: transparent; color: inherit;
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: color-mix(in oklab, var(--fg) 4%, transparent); border-color: var(--fg); }
.on-dark .btn-ghost { border-color: var(--border-dark); color: var(--fg-on-dark); }
.on-dark .btn-ghost:hover { background: color-mix(in oklab, var(--fg-on-dark) 8%, transparent); border-color: var(--fg-on-dark); }
.btn-lg { padding: 15px 26px; font-size: 15px; }
.btn-arrow { width: 14px; height: 14px; transition: transform 0.22s cubic-bezier(.2,.8,.2,1); }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ===================== SECTIONS ===================== */
section { padding: clamp(56px, 7vw, 96px) 0; position: relative; }
.section-tight { padding: clamp(40px, 5vw, 72px) 0; }

/* Subtle inner-section hairlines instead of bg color flips */
.section-divider {
  border-top: 1px solid var(--border);
  position: relative;
}
.section-divider::before {
  content: ""; position: absolute; left: 50%; top: -1px; transform: translateX(-50%);
  width: 80px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-2), transparent);
}

/* Optional sunken band — same warm palette, slightly recessed */
.section-sunken {
  background: linear-gradient(180deg, var(--bg-sunken), color-mix(in oklab, var(--bg-sunken) 70%, var(--bg)));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-dark {
  background: var(--grad-hero);
  color: var(--fg-on-dark);
  position: relative;
  overflow: hidden;
}
.section-dark::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(40% 60% at 80% 20%, color-mix(in oklab, var(--accent) 12%, transparent), transparent 70%),
    radial-gradient(50% 50% at 10% 80%, color-mix(in oklab, var(--accent-2) 10%, transparent), transparent 70%);
}
.section-dark .lead { color: var(--fg-on-dark-muted); }
.section-dark .eyebrow { color: var(--accent); }

.section-head { display: flex; flex-direction: column; gap: 16px; margin-bottom: 48px; max-width: 760px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; align-items: center; }

/* ===================== CARDS ===================== */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  position: relative;
}
.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.section-dark .card {
  background: color-mix(in oklab, #FFFFFF 4%, var(--bg-dark));
  border-color: var(--border-dark);
  color: var(--fg-on-dark);
}
.section-dark .card:hover {
  border-color: color-mix(in oklab, var(--accent) 40%, var(--border-dark));
}

/* Top gold capline on featured cards */
.card-featured {
  position: relative;
}
.card-featured::before {
  content: ""; position: absolute; top: 0; left: 24px; right: 24px; height: 1px;
  background: var(--grad-gold-line);
}

/* ===================== UTIL ===================== */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}

.mono { font-family: var(--font-mono); }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.gap-sm { gap: 8px; } .gap-md { gap: 16px; } .gap-lg { gap: 24px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* Trust bar */
.trust-bar {
  display: flex; flex-wrap: wrap; gap: 28px 56px;
  align-items: center; justify-content: center;
  padding: 28px 0;
  color: var(--fg-on-dark-muted);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.trust-bar-item { display: inline-flex; align-items: center; gap: 10px; }

/* Footer */
footer {
  background: var(--grad-hero);
  color: var(--fg-on-dark);
  padding: 96px 0 40px;
  border-top: 1px solid var(--border-dark);
  position: relative;
  overflow: hidden;
}
footer::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 80% at 50% 0%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 70%);
}
footer > * { position: relative; z-index: 1; }
footer a { color: var(--fg-on-dark-muted); font-size: 14px; transition: color 0.15s; }
footer a:hover { color: var(--accent); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1.5fr 1fr 1fr; gap: 56px; margin-bottom: 64px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-col h4 {
  font-size: 11px; font-family: var(--font-mono); text-transform: uppercase;
  letter-spacing: 0.14em; font-weight: 500; margin-bottom: 18px;
  color: var(--accent);
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 32px; border-top: 1px solid var(--border-dark);
  color: var(--fg-on-dark-muted); font-size: 13px;
  flex-wrap: wrap; gap: 16px;
}

/* Pill / badge */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 13px;
  font-size: 11.5px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 4%, transparent);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}
.pill-dark {
  background: color-mix(in oklab, var(--fg-on-dark) 6%, transparent);
  border-color: var(--border-dark);
  color: var(--fg-on-dark-muted);
  backdrop-filter: blur(8px);
}
.pill-accent {
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  border-color: color-mix(in oklab, var(--accent) 40%, transparent);
  color: var(--accent-2);
}
.section-dark .pill-accent, .on-dark .pill-accent { color: var(--accent); }
.pill-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent); }
  50% { box-shadow: 0 0 0 6px color-mix(in oklab, var(--accent) 5%, transparent); }
}

/* Stat */
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(40px, 4.4vw, 64px);
  font-weight: 400;
  letter-spacing: -0.035em; line-height: 1;
  background: linear-gradient(180deg, var(--fg), color-mix(in oklab, var(--fg) 70%, var(--accent-2)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-dark .stat-num, .on-dark .stat-num {
  background: linear-gradient(180deg, var(--fg-on-dark), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { font-size: 12px; color: var(--fg-muted); margin-top: 10px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.1em; }

/* CTA banner — now warm-bone with navy text + gold accents (no jarring flip) */
.cta-banner {
  background:
    radial-gradient(60% 80% at 50% 0%, color-mix(in oklab, var(--accent) 14%, transparent), transparent 65%),
    var(--grad-hero);
  color: var(--fg-on-dark);
  border-radius: var(--radius-lg);
  padding: clamp(56px, 8vw, 96px);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-dark);
}
.cta-banner::after {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 240px; height: 1px;
  background: var(--grad-gold-line);
}
.cta-banner > * { position: relative; }

/* Tweaks toggle */
.tweaks-toggle {
  position: fixed; bottom: 22px; right: 22px;
  z-index: 200;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--fg); color: var(--bg);
  border: 1px solid var(--border-strong);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform 0.18s;
}
.tweaks-toggle:hover { transform: rotate(30deg); }

.sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* Refined scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-sunken); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; border: 2px solid var(--bg-sunken); }
::-webkit-scrollbar-thumb:hover { background: var(--fg-muted); }

/* Selection */
::selection { background: color-mix(in oklab, var(--accent) 35%, transparent); color: var(--fg); }