/* ============================================================
   VibeTags Studio — Design System & Styles
   Premium dark theme with Sentry-inspired aesthetic
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Funnel+Display:wght@300;400;700;800&family=Funnel+Sans:wght@300;400;500;700&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  /* Backgrounds */
  --bg-primary: #0f0a1a;
  --bg-deeper: #0a0612;
  --bg-surface: #1a1230;
  --bg-surface-hover: #231940;
  --bg-dark-section: #0c0816;
  /* Borders */
  --border-purple: #2a1f4a;
  --border-button: #584674;
  --border-input: #cfcfdb;
  /* Brand / Interactive */
  --sentry-purple: #6a5fc1;
  --sentry-purple-light: #8b7fd6;
  --muted-purple: #79628c;
  --deep-violet: #422082;
  /* Accents */
  --lime: #c2ef4e;
  --lime-glow: rgba(194, 239, 78, 0.15);
  --coral: #ffb287;
  --pink: #fa7faa;
  /* Text */
  --fg1: #ffffff;
  --fg2: #b8b4c8;
  --fg3: #8a849e;
  --fg-on-lime: #0f0a1a;
  /* Shadows */
  --shadow-sm: rgba(0, 0, 0, 0.15) 0px 1px 3px 0px;
  --shadow-md: rgba(0, 0, 0, 0.20) 0px 4px 12px -2px;
  --shadow-lg: rgba(0, 0, 0, 0.30) 0px 10px 30px -4px;
  --shadow-glow: rgba(194, 239, 78, 0.12) 0px 0px 40px;
  --shadow-purple-glow: rgba(106, 95, 193, 0.20) 0px 0px 40px;
  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-pill: 100px;
  /* Fonts */
  --font-display: "Funnel Display", "Helvetica Neue", -apple-system, system-ui, sans-serif;
  --font-ui: "Funnel Sans", "Helvetica Neue", -apple-system, system-ui, sans-serif;
  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: var(--bg-primary);
  color: var(--fg1);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.page {
  min-height: 100vh;
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (min-width: 768px) {
  .wrap { padding: 0 4rem; }
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  background: rgba(15, 10, 26, 0.75);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid rgba(42, 31, 74, 0.5);
  transition: background var(--duration-normal) var(--ease-out);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font: 700 18px/1 var(--font-display);
  color: var(--fg1);
  transition: opacity var(--duration-fast);
}

.nav-logo:hover { opacity: 0.85; }

.nav-links {
  display: none;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font: 500 14px/1 var(--font-ui);
  color: var(--fg2);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.nav-links a:hover { color: var(--fg1); }

.nav-cta {
  font: 700 13px/1 var(--font-ui) !important;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--fg-on-lime) !important;
  background: var(--lime);
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  transition: box-shadow var(--duration-normal), transform var(--duration-fast) !important;
}

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

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

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fg2);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out), opacity var(--duration-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

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

/* Mobile menu */
.nav-links.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(15, 10, 26, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px 2rem;
  gap: 20px;
  border-bottom: 1px solid var(--border-purple);
  animation: slideDown var(--duration-normal) var(--ease-out);
}

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

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 60%;
  max-width: 700px;
  height: 350px;
  border-radius: 50%;
  background: var(--deep-violet);
  filter: blur(120px);
  opacity: 0.45;
  z-index: 0;
  pointer-events: none;
}

.hero-glow--secondary {
  width: 40%;
  max-width: 500px;
  height: 200px;
  top: 60%;
  background: rgba(194, 239, 78, 0.08);
  filter: blur(100px);
  opacity: 0.6;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.eyebrow {
  font: 500 13px/1.5 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--sentry-purple-light);
  margin: 0 0 20px;
}

.h1 {
  font: 800 clamp(40px, 6vw, 72px)/1.08 var(--font-display);
  margin: 0 auto 28px;
  max-width: 16ch;
  letter-spacing: -1px;
}

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

.lede {
  font: 400 clamp(17px, 2vw, 20px)/1.6 var(--font-ui);
  color: var(--fg2);
  max-width: 54ch;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-trust {
  margin-top: 24px;
  font: 400 13px/1.5 var(--font-ui);
  color: var(--fg3);
}

/* ---------- Buttons ---------- */
.primary-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 700 14px/1 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--fg-on-lime);
  background: var(--lime);
  border: none;
  border-radius: var(--radius-pill);
  padding: 16px 32px;
  cursor: pointer;
  text-decoration: none;
  transition: box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.primary-cta:hover {
  box-shadow: var(--shadow-glow), var(--shadow-lg);
  transform: translateY(-2px);
}

.primary-cta:active {
  transform: translateY(0);
}

.secondary-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 700 14px/1 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--fg1);
  background: transparent;
  border: 1px solid var(--border-button);
  border-radius: var(--radius-pill);
  padding: 16px 32px;
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--duration-normal),
              background var(--duration-normal),
              box-shadow var(--duration-normal);
}

.secondary-cta:hover {
  border-color: var(--sentry-purple);
  background: rgba(106, 95, 193, 0.1);
  box-shadow: var(--shadow-purple-glow);
}

/* ---------- Ticker bar ---------- */
.ticker-bar {
  background: var(--bg-deeper);
  border-top: 1px solid var(--border-purple);
  border-bottom: 1px solid var(--border-purple);
  padding: 16px 0;
  overflow: hidden;
}

.ticker-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.ticker-item {
  font: 500 13px/1 var(--font-ui);
  color: var(--fg3);
  white-space: nowrap;
}

.ticker-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--border-purple);
  flex-shrink: 0;
}

/* ---------- Sections ---------- */
.section {
  padding: 80px 0;
  position: relative;
}

.section--dark {
  background: var(--bg-dark-section);
}

.section--cta {
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

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

.cta-glow {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 50%;
  max-width: 500px;
  height: 300px;
  border-radius: 50%;
  background: var(--deep-violet);
  filter: blur(120px);
  opacity: 0.3;
  pointer-events: none;
}

.section-eyebrow {
  font: 500 13px/1.5 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--sentry-purple-light);
  margin: 0 0 12px;
}

.h2 {
  font: 700 clamp(26px, 4vw, 36px)/1.2 var(--font-display);
  margin: 0 0 16px;
  max-width: 22ch;
}

.h2--centered {
  max-width: none;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-lede {
  font: 400 17px/1.6 var(--font-ui);
  color: var(--fg2);
  max-width: 58ch;
  margin: 0 0 48px;
}

.section-lede--centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Narrative (problem section) ---------- */
.narrative-grid {
  display: grid;
  gap: 48px;
}

@media (min-width: 900px) {
  .narrative-grid {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }
}

.narrative {
  font: 400 18px/1.7 var(--font-ui);
  color: var(--fg2);
  max-width: 62ch;
  margin: 0 0 24px;
}

.narrative strong {
  color: var(--fg1);
  font-weight: 700;
}

.narrative-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--duration-normal), transform var(--duration-normal);
}

.stat-card:hover {
  border-color: var(--sentry-purple);
  transform: translateY(-2px);
}

.stat-number {
  font: 800 48px/1 var(--font-display);
  color: var(--lime);
}

.stat-label {
  font: 400 14px/1.5 var(--font-ui);
  color: var(--fg3);
}

/* ---------- Before / After comparison ---------- */
.compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

@media (min-width: 768px) {
  .compare { grid-template-columns: 1fr 1fr; }
}

.compare-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.compare-card:hover {
  transform: translateY(-3px);
}

.compare-card--after {
  border-color: var(--lime);
  box-shadow: var(--shadow-glow);
}

.compare-label {
  display: inline-block;
  font: 600 11px/1 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--fg3);
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  margin-bottom: 20px;
}

.compare-label--after {
  color: var(--fg-on-lime);
  background: var(--lime);
}

.desc-text {
  font: 400 15px/1.7 var(--font-ui);
  color: var(--fg3);
}

.desc-text p { margin: 0 0 12px; }

.desc-text ul {
  margin: 0 0 12px;
  padding-left: 20px;
}

.desc-text li { margin: 0 0 6px; }

.desc-added {
  color: var(--fg1) !important;
  border-left: 3px solid var(--lime);
  padding-left: 12px;
}

ul.desc-added {
  border-left: 3px solid var(--lime);
  padding-left: 32px;
}

.caption {
  font: 500 13px/1.5 var(--font-ui);
  color: var(--fg3);
  margin: 20px 0 0;
}

/* ---------- Feature cards ---------- */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.card:hover {
  border-color: var(--sentry-purple);
  transform: translateY(-4px);
  box-shadow: var(--shadow-purple-glow);
}

.card-icon {
  margin-bottom: 20px;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(194, 239, 78, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-title {
  font: 700 20px/1.3 var(--font-display);
  margin: 0 0 12px;
}

.card-body {
  font: 400 15px/1.6 var(--font-ui);
  color: var(--fg2);
  margin: 0;
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  counter-reset: step;
}

@media (min-width: 768px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}

.step {
  position: relative;
  padding-left: 24px;
}

.step::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--lime) 0%, var(--sentry-purple) 100%);
  border-radius: 2px;
}

.step-number {
  font: 700 12px/1 var(--font-ui);
  letter-spacing: 1px;
  color: var(--lime);
  margin: 0 0 12px;
}

.step-title {
  font: 700 22px/1.3 var(--font-display);
  margin: 0 0 10px;
}

.step-body {
  font: 400 15px/1.6 var(--font-ui);
  color: var(--fg2);
  margin: 0;
}

/* ---------- Pricing ---------- */
.price-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 880px;
}

@media (min-width: 600px) {
  .price-grid { grid-template-columns: repeat(2, 1fr); }
}

.price-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-xl);
  padding: 44px;
  text-align: center;
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

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

.price-card--pro {
  border-color: var(--lime);
  box-shadow: var(--shadow-glow);
}

.price-card--pro:hover {
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.price-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  font: 700 11px/1 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--fg-on-lime);
  background: var(--lime);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.price-name {
  font: 600 14px/1 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--fg3);
  margin: 0 0 16px;
}

.price-amount {
  font: 800 60px/1 var(--font-display);
  color: var(--fg1);
  margin: 0;
}

.price-amount span {
  font: 400 16px/1 var(--font-ui);
  color: var(--fg3);
}

.price-trial {
  font: 500 14px/1.4 var(--font-ui);
  color: var(--fg3);
  margin: 12px 0 32px;
}

.price-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  text-align: left;
}

.price-list li {
  font: 400 15px/1.6 var(--font-ui);
  color: var(--fg2);
  padding-left: 28px;
  position: relative;
  margin-bottom: 12px;
}

.price-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--sentry-purple);
  font-weight: 700;
}

.price-card--pro .price-list li::before {
  color: var(--lime);
}

.price-cta {
  display: inline-block;
  font: 700 14px/1 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--fg1);
  background: transparent;
  border: 1px solid var(--border-button);
  border-radius: var(--radius-pill);
  padding: 16px 32px;
  text-decoration: none;
  transition: border-color var(--duration-normal),
              background var(--duration-normal),
              box-shadow var(--duration-normal),
              transform var(--duration-fast);
}

.price-cta:hover {
  border-color: var(--sentry-purple);
  background: rgba(106, 95, 193, 0.1);
}

.price-cta--pro {
  color: var(--fg-on-lime);
  background: var(--lime);
  border: none;
}

.price-cta--pro:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
  background: var(--lime);
}

/* ---------- Resources / ecosystem ---------- */
.resource-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 600px) {
  .resource-grid { grid-template-columns: repeat(2, 1fr); }
}

.resource-card {
  display: block;
  background: var(--bg-surface);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.resource-card:hover {
  border-color: var(--sentry-purple);
  box-shadow: var(--shadow-purple-glow);
  transform: translateY(-3px);
}

.resource-name {
  font: 700 16px/1.4 var(--font-ui);
  color: var(--fg1);
  margin: 0 0 6px;
}

.resource-name::after {
  content: " ↗";
  color: var(--sentry-purple);
}

.resource-desc {
  font: 400 14px/1.5 var(--font-ui);
  color: var(--fg3);
  margin: 0;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-deeper);
  border-top: 1px solid var(--border-purple);
  padding: 48px 0 40px;
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 32px;
}

@media (min-width: 768px) {
  .footer-top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 700 16px/1 var(--font-display);
  color: var(--fg1);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-link {
  font: 500 13px/1 var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--fg3);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer-link:hover {
  color: var(--sentry-purple-light);
}

.fineprint {
  font: 400 13px/1.6 var(--font-ui);
  color: var(--fg3);
  margin: 0 0 8px;
}

.fineprint:last-child {
  margin: 0;
}

/* ---------- Scroll-triggered fade-in ---------- */
.section,
.card,
.compare-card,
.step,
.price-card,
.resource-card,
.stat-card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.section.is-visible,
.card.is-visible,
.compare-card.is-visible,
.step.is-visible,
.price-card.is-visible,
.resource-card.is-visible,
.stat-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays for grid children */
.card:nth-child(2).is-visible,
.step:nth-child(2).is-visible,
.resource-card:nth-child(2).is-visible {
  transition-delay: 80ms;
}

.card:nth-child(3).is-visible,
.step:nth-child(3).is-visible,
.resource-card:nth-child(3).is-visible {
  transition-delay: 160ms;
}

.resource-card:nth-child(4).is-visible {
  transition-delay: 240ms;
}

/* ---------- Selection ---------- */
::selection {
  background: rgba(194, 239, 78, 0.25);
  color: var(--fg1);
}

/* ---------- Video Demo Section ---------- */
.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 40px;
}

@media (min-width: 900px) {
  .video-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

.video-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.video-card:hover {
  border-color: var(--sentry-purple);
  transform: translateY(-2px);
  box-shadow: var(--shadow-purple-glow);
}

.video-title {
  font: 700 18px/1.3 var(--font-display);
  color: var(--fg1);
}

.video-desc {
  font: 400 14px/1.5 var(--font-ui);
  color: var(--fg2);
  margin-bottom: 8px;
}

.video-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
}