/* ======================================
   FlowStateOS — Dark Studio Aesthetic
   ====================================== */

:root {
  --bg: #0c0b0e;
  --bg-2: #131218;
  --surface: #1a1922;
  --border: #2a2833;
  --fg: #f5f0e8;
  --fg-2: #a8a49c;
  --accent: #e8c27a;
  --accent-dim: rgba(232, 194, 122, 0.08);
  --accent-glow: rgba(232, 194, 122, 0.15);
  --red: #e05c5c;
  --font-display: 'Bebas Neue', 'Arial Black', sans-serif;
  --font-body: 'Instrument Sans', 'Helvetica Neue', sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;
  --max-width: 1080px;
  --radius: 12px;
}

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

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

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

/* NAV */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  color: var(--fg);
}

.accent { color: var(--accent); }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 2rem 6rem;
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232,194,122,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 820px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(232,194,122,0.25);
  border-radius: 100px;
  padding: 0.4rem 1.2rem;
  margin-bottom: 2.5rem;
  font-weight: 500;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 7rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--fg);
  margin-bottom: 2rem;
}

.hero-lede {
  font-size: 1.15rem;
  color: var(--fg-2);
  max-width: 580px;
  margin: 0 auto;
  font-weight: 400;
}

/* PROBLEM */
.problem {
  background: var(--bg-2);
  padding: var(--space-xl) 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-inner {
  max-width: 760px;
  margin: 0 auto;
}

.problem-text {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--fg);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

.problem-sub {
  font-size: 1.05rem;
  color: var(--fg-2);
  line-height: 1.75;
  margin-bottom: 2rem;
}

/* FEATURES */
.features {
  padding: var(--space-xl) 2rem;
}

.features-header {
  max-width: var(--max-width);
  margin: 0 auto var(--space-lg);
}

.section-label {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1rem;
}

.features h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--fg);
}

.features-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature {
  background: var(--bg);
  padding: 2.5rem;
  transition: background 0.2s;
}

.feature:hover {
  background: var(--surface);
}

.feature-icon {
  color: var(--accent);
  margin-bottom: 1.2rem;
  display: flex;
}

.feature h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  color: var(--fg);
  margin-bottom: 0.75rem;
}

.feature p {
  font-size: 0.9rem;
  color: var(--fg-2);
  line-height: 1.7;
}

/* PHILOSOPHY */
.philosophy {
  background: var(--bg-2);
  padding: var(--space-xl) 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.philosophy-inner {
  max-width: 760px;
  margin: 0 auto;
}

.philosophy-quote {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  line-height: 1.2;
  color: var(--fg);
  margin: 2rem 0;
  letter-spacing: 0.02em;
  position: relative;
  padding-left: 0;
}

.philosophy-quote::before {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--accent);
  margin-bottom: 1.5rem;
}

.philosophy-body {
  font-size: 1.05rem;
  color: var(--fg-2);
  line-height: 1.8;
}

/* CLOSER */
.closer {
  padding: var(--space-xl) 2rem;
  text-align: center;
}

.closer-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closer h2 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--fg);
  margin-bottom: 1.5rem;
}

.closer-sub {
  font-size: 1.05rem;
  color: var(--fg-2);
  line-height: 1.7;
  max-width: 500px;
  margin: 0 auto;
}

/* FOOTER */
.footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  color: var(--fg);
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-2);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero { padding: 7rem 1.5rem 5rem; }
  .hero-glow { width: 300px; height: 300px; }

  .features-grid {
    grid-template-columns: 1fr;
    border-radius: 0;
  }

  .feature { padding: 2rem 1.5rem; }

  .problem, .philosophy, .closer { padding: 5rem 1.5rem; }

  .features { padding: 5rem 1.5rem; }
  .features-header { margin-bottom: 3rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 3rem; }
  .features-grid { gap: 0; }
}