/* ═══════════════════════════════════════
   NUDGR — PLANNER LANDING PAGE
   Dark productivity aesthetic
   ═══════════════════════════════════════ */

:root {
  --bg: #0c0c0e;
  --bg-card: #141416;
  --bg-card-hover: #1a1a1d;
  --fg: #f0ede8;
  --fg-muted: #8a8880;
  --accent: #c8f135;
  --accent-dim: rgba(200, 241, 53, 0.12);
  --accent-glow: rgba(200, 241, 53, 0.06);
  --border: rgba(240, 237, 232, 0.08);
  --border-bright: rgba(240, 237, 232, 0.15);
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  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: 20px 40px;
  background: rgba(12, 12, 14, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 40px 80px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 600px;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(200, 241, 53, 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 4px 12px;
  border-radius: 3px;
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(4rem, 8vw, 7rem);
  line-height: 0.92;
  letter-spacing: 0.02em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 440px;
  line-height: 1.7;
}

/* Plan cards visual */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 10px;
  padding: 18px 22px;
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  gap: 16px;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.plan-card:hover {
  border-color: var(--accent);
  transform: translateX(-4px);
}

.plan-card.dimmed {
  opacity: 0.45;
}

.plan-time {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
}

.plan-task {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--fg);
}

.plan-badge {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
}

.plan-badge.nudge {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(200, 241, 53, 0.2);
}

.plan-badge.done {
  background: rgba(138, 136, 128, 0.15);
  color: var(--fg-muted);
  border: 1px solid var(--border);
}

/* ── HOW IT WORKS ── */
.how {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg) 0%, #0e0e11 100%);
}

.how-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: 0.03em;
  line-height: 1;
  color: var(--fg);
  margin-bottom: 72px;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.step {
  position: relative;
}

.step::before {
  content: '';
  position: absolute;
  top: 0;
  left: -24px;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent) 0%, transparent 80%);
  opacity: 0.3;
}

.step:first-child::before {
  display: none;
}

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.5;
  display: block;
  margin-bottom: 16px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--fg);
  margin-bottom: 12px;
}

.step p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ── FEATURES ── */
.features {
  padding: 120px 40px;
  background: #0e0e11;
}

.features-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.features-header {
  margin-bottom: 64px;
}

.features-header .section-title {
  max-width: 600px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.feature {
  background: var(--bg);
  padding: 36px 32px;
  transition: background 0.3s ease;
}

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

.feature-icon {
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.9;
}

.feature h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  color: var(--fg);
  margin-bottom: 10px;
}

.feature p {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

/* ── DIFFERENTIATOR ── */
.diff {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, #0e0e11 0%, var(--bg) 100%);
}

.diff-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.diff-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.diff-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--fg);
  max-width: 680px;
  margin-bottom: 24px;
}

.diff-body {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 56px;
  line-height: 1.7;
}

.diff-body em {
  color: var(--fg);
  font-style: normal;
}

.diff-comparison {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-bright);
  border-radius: 10px;
  overflow: hidden;
  max-width: 640px;
}

.comp-row {
  display: grid;
  grid-template-columns: 1fr 80px 80px;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s ease;
}

.comp-row:last-child {
  border-bottom: none;
}

.comp-row:hover {
  background: var(--bg-card);
}

.comp-feature {
  font-size: 0.9rem;
  color: var(--fg-muted);
}

.comp-nudgr {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-align: center;
}

.comp-others {
  font-size: 0.75rem;
  color: var(--fg-muted);
  text-align: center;
  opacity: 0.4;
}

/* ── CLOSING ── */
.closing {
  padding: 160px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(200, 241, 53, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5.5rem);
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--fg);
  margin-bottom: 28px;
}

.closing-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto;
}

/* ── FOOTER ── */
footer {
  padding: 40px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

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

/* ── SCROLL ANIMATIONS ── */
@media (prefers-reduced-motion: no-preference) {
  .hero-headline {
    animation: fadeUp 0.7s ease-out both;
  }
  .hero-sub {
    animation: fadeUp 0.7s 0.1s ease-out both;
  }
  .hero-label {
    animation: fadeUp 0.5s 0.05s ease-out both;
  }
  .hero-visual {
    animation: fadeUp 0.7s 0.2s ease-out both;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    max-width: 480px;
  }

  .how-steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .step::before {
    display: none;
  }

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

  .diff-comparison {
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  nav, .hero, .how, .features, .diff, .closing, footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero {
    padding-top: 100px;
  }

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

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .plan-card {
    grid-template-columns: 70px 1fr;
  }

  .plan-badge {
    grid-column: 2;
    justify-self: start;
  }
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--fg-muted); }

/* Selection */
::selection { background: var(--accent-dim); color: var(--accent); }