/* ===========================
   Glowist Landing Page Styles
   =========================== */

/* ---------- CSS Variables ---------- */
:root {
  --color-primary: #B4A38F;
  --color-secondary: #DDBB95;
  --color-gold: #C78B4D;
  --color-bg: #F6F1EE;
  --color-card: #FFFFFF;
  --color-text: #433A35;
  --color-text-secondary: #8B8480;
  --color-border: #ECE5E1;
  --color-success: #2FB27E;
  --color-error: #E25C69;
  --color-dark: #3D3530;
  --color-light: #F2F3F4;

  --font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-full: 100px;
  --shadow-card: 0 4px 24px rgba(143, 92, 116, 0.08);
  --shadow-card-hover: 0 12px 40px rgba(143, 92, 116, 0.14);
  --shadow-btn: 0 4px 16px rgba(180, 163, 143, 0.35);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ---------- Utility ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(246, 241, 238, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(236, 229, 225, 0.6);
  transition: background var(--transition);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.3px;
}

.nav-logo-icon {
  font-size: 22px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-cta {
  background: var(--color-text);
  color: var(--color-card) !important;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 13px !important;
  transition: transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-btn);
}

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 64px;
  background: linear-gradient(160deg, var(--color-bg) 0%, #EDE5DF 50%, #E8DDD6 100%);
}

.hero-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  opacity: 0.18;
  animation: float 6s ease-in-out infinite;
}

.orb-1 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--color-secondary), transparent 70%);
  top: 10%;
  left: -5%;
  animation-delay: 0s;
}

.orb-2 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, var(--color-gold), transparent 70%);
  top: 55%;
  right: -3%;
  animation-delay: 2s;
}

.orb-3 {
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, var(--color-primary), transparent 70%);
  bottom: 15%;
  left: 30%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-25px) scale(1.05); }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(221, 187, 149, 0.15);
  border: 1px solid rgba(221, 187, 149, 0.3);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-gold);
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--color-text);
  margin-bottom: 20px;
}

.hero-title-accent {
  background: linear-gradient(135deg, var(--color-gold), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 480px;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
}

.btn-primary {
  background: var(--color-text);
  color: var(--color-card);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(61, 53, 48, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  background: rgba(180, 163, 143, 0.08);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.5px;
}

.hero-stat-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.hero-stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
}

/* ---------- Phone Mockup ---------- */
.hero-phone {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 280px;
  background: var(--color-dark);
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 30px 80px rgba(61, 53, 48, 0.25), 0 0 0 1px rgba(255,255,255,0.1) inset;
  position: relative;
}

.phone-notch {
  width: 100px;
  height: 24px;
  background: var(--color-dark);
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  margin-top: -1px;
}

.phone-screen {
  background: var(--color-bg);
  border-radius: 24px;
  padding: 20px 16px;
  min-height: 480px;
  overflow: hidden;
}

/* Mock Screen Content */
.mock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.mock-greeting {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text);
}

.mock-streak {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-gold);
  background: rgba(199, 139, 77, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.mock-flame {
  animation: flame-pulse 1.5s ease-in-out infinite;
}

@keyframes flame-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.mock-progress {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-card);
}

.mock-progress-ring {
  position: relative;
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}

.mock-progress-ring svg {
  width: 52px;
  height: 52px;
}

.mock-progress-ring circle {
  transition: stroke-dashoffset 1.5s ease-out;
}

.mock-ring-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: var(--color-text);
}

.mock-progress-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
}

.mock-progress-count {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.mock-tabs {
  display: flex;
  gap: 0;
  background: var(--color-card);
  border-radius: var(--radius-sm);
  padding: 3px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
}

.mock-tab {
  flex: 1;
  text-align: center;
  padding: 7px 0;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-secondary);
  border-radius: 8px;
  transition: var(--transition);
}

.mock-tab-active {
  background: var(--color-primary);
  color: var(--color-card);
}

.mock-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mock-step {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-card);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  position: relative;
}

.mock-step-check {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}

.mock-step-done .mock-step-check {
  background: var(--color-success);
  color: white;
  font-weight: 700;
}

.mock-step-check.empty {
  border: 2px solid var(--color-border);
}

.mock-step-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text);
}

.mock-step-name.done {
  text-decoration: line-through;
  color: var(--color-text-secondary);
}

.mock-step-brand {
  font-size: 10px;
  color: var(--color-text-secondary);
}

.mock-swipe-hint {
  margin-left: auto;
  font-size: 9px;
  font-weight: 600;
  color: var(--color-primary);
  opacity: 0.7;
  animation: swipe-hint 2s ease-in-out infinite;
}

@keyframes swipe-hint {
  0%, 100% { transform: translateX(0); opacity: 0.5; }
  50% { transform: translateX(4px); opacity: 1; }
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(180, 163, 143, 0.12);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: var(--color-text);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---------- Features ---------- */
.features {
  padding: 100px 0;
  background: var(--color-card);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 32px 24px;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(180, 163, 143, 0.15);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon-gold {
  background: rgba(199, 139, 77, 0.12);
  color: var(--color-gold);
}

.feature-icon-green {
  background: rgba(47, 178, 126, 0.1);
  color: var(--color-success);
}

.feature-icon-warm {
  background: rgba(226, 92, 105, 0.1);
  color: var(--color-error);
}

.feature-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}

.feature-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---------- How It Works ---------- */
.how-it-works {
  padding: 100px 0;
  background: var(--color-bg);
}

.steps-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.step-card {
  text-align: center;
  max-width: 280px;
  padding: 0 24px;
  position: relative;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gold), var(--color-secondary));
  color: white;
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: var(--color-card);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--color-primary);
}

.step-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}

.step-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.step-connector {
  display: flex;
  align-items: center;
  padding-top: 82px;
  flex-shrink: 0;
}

/* ---------- Highlights ---------- */
.highlights {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-dark) 0%, #4A3F39 100%);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.highlight-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 28px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition);
}

.highlight-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.highlight-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(221, 187, 149, 0.15);
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.highlight-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-card);
  margin-bottom: 6px;
}

.highlight-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
}

/* ---------- CTA / Download ---------- */
.cta-section {
  padding: 100px 0;
  background: var(--color-bg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cta-particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  animation: cta-sparkle 3s ease-in-out infinite;
}

@keyframes cta-sparkle {
  0% { opacity: 0; transform: translateY(0) scale(0.5); }
  50% { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(-60px) scale(1.2); }
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.cta-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--color-text);
  color: var(--color-card);
  padding: 12px 28px;
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition);
}

.store-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(61, 53, 48, 0.2);
}

.store-btn-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.store-btn-small {
  font-size: 10px;
  font-weight: 500;
  opacity: 0.7;
}

.store-btn-big {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.2px;
}

/* ---------- Footer ---------- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 800;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-copy {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.features-grid .feature-card:nth-child(2) { transition-delay: 0.1s; }
.features-grid .feature-card:nth-child(3) { transition-delay: 0.2s; }
.features-grid .feature-card:nth-child(4) { transition-delay: 0.3s; }

.steps-row .step-card:nth-child(3) { transition-delay: 0.15s; }
.steps-row .step-card:nth-child(5) { transition-delay: 0.3s; }

.highlights-grid .highlight-item:nth-child(2) { transition-delay: 0.1s; }
.highlights-grid .highlight-item:nth-child(3) { transition-delay: 0.2s; }
.highlights-grid .highlight-item:nth-child(4) { transition-delay: 0.3s; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
    padding: 60px 24px;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-mobile-toggle {
    display: flex;
  }

  /* Mobile menu */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(246, 241, 238, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    animation: slideDown 0.3s ease-out;
  }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .nav-links.open a {
    font-size: 16px;
  }

  .hero-inner {
    padding: 40px 20px 60px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .hero-stat-divider {
    width: 40px;
    height: 1px;
  }

  .phone-frame {
    width: 240px;
  }

  .phone-screen {
    min-height: 400px;
    padding: 16px 12px;
  }

  .features {
    padding: 60px 0;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .how-it-works {
    padding: 60px 0;
  }

  .steps-row {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }

  .step-connector {
    display: none;
  }

  .highlights {
    padding: 60px 0;
  }

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

  .cta-section {
    padding: 60px 0;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .store-btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 28px;
  }

  .section-title {
    font-size: 24px;
  }

  .phone-frame {
    width: 220px;
  }

  .mock-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}