/* ==========================================================================
   CardPulse Landing Page — Design system
   Modern SaaS-style dark theme. No frameworks.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Variables
   -------------------------------------------------------------------------- */
:root {
  /* Colors — match CardPulse logo: blue-purple to magenta, cyan/magenta accents */
  --bg-base: #1a0a2e;
  --bg-surface: #1f003f;
  --bg-surface-2: #2a005e;
  --bg-surface-3: #350070;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8e4f0;
  --text-muted: #b8a8c8;
  --text-faint: #8a7a9a;
  --accent: #bd008f;
  --accent-hover: #d000a0;
  --accent-muted: rgba(189, 0, 143, 0.2);
  --accent-cyan: #00d4ff;
  --accent-cyan-muted: rgba(0, 212, 255, 0.15);
  --pro-accent: #a855f7;
  --pro-accent-muted: rgba(168, 85, 247, 0.2);
  --success: #22c55e;
  --white: #ffffff;

  /* Logo gradient (dark blue-purple → magenta) */
  --gradient-logo-start: #1f003f;
  --gradient-logo-mid: #4a0078;
  --gradient-logo-end: #7a005f;
  --gradient-glow: rgba(189, 0, 143, 0.25);
  --shadow-glow: 0 0 60px rgba(189, 0, 143, 0.15);
  --shadow-glow-cyan: 0 0 40px rgba(0, 212, 255, 0.1);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --section-padding-y: 5rem;
  --section-padding-y-lg: 6.5rem;
  --content-max: 1100px;
  --content-wide: 960px;

  /* Radii & shadows */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Section layout
   -------------------------------------------------------------------------- */
.section {
  padding: var(--section-padding-y) var(--space-6);
}

.section__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.section__title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
  line-height: var(--leading-tight);
  color: var(--white);
}

.section__lead {
  margin: 0 0 var(--space-10);
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 42ch;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--leading-relaxed);
}

.section__lead--wide {
  max-width: 56ch;
}

@media (min-width: 768px) {
  .section {
    padding: var(--section-padding-y-lg) var(--space-8);
  }
  .section__title {
    font-size: var(--text-4xl);
  }
  .section__lead {
    font-size: var(--text-xl);
    margin-bottom: var(--space-12);
  }
}

/* ==========================================================================
   HERO
   ========================================================================== */

/* CardPulse logo text — gradient + glow */
.logo-text {
  font-size: 48px;
  font-weight: 700;
  font-family: "Segoe UI", sans-serif;
  background: linear-gradient(90deg, #ffffff, #ff7cf7, #8a7dff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow:
    0 0 10px rgba(255, 124, 247, 0.5),
    0 0 20px rgba(138, 125, 255, 0.4);
}

.hero {
  position: relative;
  padding: var(--space-16) var(--space-6) var(--space-24);
  text-align: center;
  background: var(--bg-surface);
  background-image:
    linear-gradient(90deg, var(--gradient-logo-start) 0%, var(--gradient-logo-mid) 45%, var(--gradient-logo-end) 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  opacity: 0.6;
}

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

.hero__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.hero__title {
  margin: 0;
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--white);
}

.hero__tagline {
  margin: 0 0 var(--space-4);
  font-size: var(--text-xl);
  font-weight: var(--font-medium);
  color: var(--text);
  line-height: var(--leading-snug);
}

.hero__value {
  margin: 0 0 var(--space-10);
  font-size: var(--text-base);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
  max-width: 48ch;
  margin-left: auto;
  margin-right: auto;
}

/* Phone mockups — screenshot area */
.hero__screenshots {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
  min-height: 280px;
}

.hero__phone {
  width: 120px;
  height: 240px;
  background: var(--bg-surface-2);
  border: 2px solid rgba(0, 212, 255, 0.2);
  border-radius: 24px;
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

.hero__phone--left {
  transform: translateY(24px) rotate(-6deg);
  opacity: 0.9;
}

.hero__phone--center {
  width: 140px;
  height: 280px;
  transform: scale(1.05);
  border-color: rgba(0, 212, 255, 0.35);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.hero__phone--right {
  transform: translateY(24px) rotate(6deg);
  opacity: 0.9;
}

@media (min-width: 640px) {
  .hero__phone {
    width: 140px;
    height: 280px;
  }
  .hero__phone--center {
    width: 160px;
    height: 320px;
  }
  .hero__screenshots {
    min-height: 320px;
  }
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-20) var(--space-8) var(--space-24);
  }
  .hero__title {
    font-size: var(--text-6xl);
  }
  .hero__tagline {
    font-size: var(--text-2xl);
  }
  .hero__value {
    font-size: var(--text-lg);
  }
}

/* CTA & badges */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  cursor: pointer;
}

.cta--primary {
  background: var(--accent);
  color: var(--white);
}

.cta--primary:hover {
  background: var(--accent-hover);
  color: #5865F2;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(189, 0, 143, 0.4);
  text-decoration: none;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: var(--space-6);
}

.cta--discord {
  background: #5865F2;
  color: var(--white);
}

.cta--discord:hover {
  background: #4752C4;
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(88, 101, 242, 0.4);
  text-decoration: none;
}

.cta--secondary {
  background: var(--pro-accent);
  color: var(--white);
}

.cta--secondary:hover {
  background: #7c3aed;
  color: var(--white);
  transform: translateY(-1px);
  text-decoration: none;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.badge {
  display: inline-block;
  line-height: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.badge:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  text-decoration: none;
}

.badge img,
.download-logo {
  display: block;
  height: 48px;
  width: auto;
  object-fit: contain;
  border-radius: 6px;
}

/* ==========================================================================
   FEATURES (Free)
   ========================================================================== */
.section--features {
  background: var(--bg-base);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.feature-card__icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
  line-height: 1;
}

.feature-card__svg {
  display: block;
  width: 48px;
  height: 48px;
  color: var(--white);
}

.feature-card__title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--white);
}

.feature-card__text {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

.feature-card__text strong {
  color: var(--text);
}

/* ==========================================================================
   CARDPULSE PRO
   ========================================================================== */
.section--pro {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}

.pro-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--pro-accent);
  background: var(--pro-accent-muted);
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

.pro-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

@media (min-width: 640px) {
  .pro-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pro-feature {
  background: var(--bg-surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.pro-feature__title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--white);
}

.pro-feature__list {
  margin: 0;
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.7;
}

.pro-feature__list li {
  margin-bottom: var(--space-1);
}

.pro-feature__list li:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   FREE VS PRO — PRICING CARDS (Collectr-style)
   ========================================================================== */
.section--comparison {
  background: var(--bg-base);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  max-width: var(--content-wide);
  margin: 0 auto;
}

@media (min-width: 640px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
  }
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.pricing-card--pro {
  border-color: var(--pro-accent-muted);
  background: var(--bg-surface-2);
  box-shadow: 0 0 0 1px rgba(168, 85, 247, 0.15);
}

.pricing-card--pro:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(168, 85, 247, 0.2);
}

.pricing-card__badge {
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--pro-accent);
  background: var(--pro-accent-muted);
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.pricing-card__title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--white);
}

.pricing-card__subtitle {
  margin: 0 0 var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.pricing-card__price {
  margin: 0 0 var(--space-2);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.pricing-card__amount {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--white);
}

.pricing-card--pro .pricing-card__amount {
  color: var(--pro-accent);
}

.pricing-card__period {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--text-muted);
}

.pricing-card__note {
  margin: 0 0 var(--space-6);
  font-size: var(--text-xs);
  color: var(--text-faint);
}

.pricing-card__features {
  margin: 0 0 var(--space-8);
  padding-left: var(--space-6);
  list-style: none;
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.8;
}

.pricing-card__features li {
  margin-bottom: var(--space-2);
  position: relative;
}

.pricing-card__features li:last-child {
  margin-bottom: 0;
}

.pricing-card__features li::before {
  content: "✓";
  position: absolute;
  left: calc(-1 * var(--space-6));
  color: var(--success);
  font-weight: var(--font-bold);
}

.pricing-card__cta {
  display: block;
  text-align: center;
  width: 100%;
}

/* ==========================================================================
   SCREENSHOTS
   ========================================================================== */
.section--screenshots {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .screenshot-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
  }
}

.screenshot-card {
  margin: 0;
  text-align: center;
}

.screenshot-card__img {
  position: relative;
  aspect-ratio: 9 / 19;
  max-width: 200px;
  margin: 0 auto var(--space-3);
  background: var(--bg-surface-2);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

/* Placeholder styling — replace inner content with <img> when you have assets */
.screenshot-card__placeholder {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-faint);
}

/* When you add real images, they will fill the card */
.screenshot-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.screenshot-card__caption {
  margin: 0;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-muted);
}

/* ==========================================================================
   FUTURE FEATURES
   ========================================================================== */
.section--future {
  background: var(--bg-base);
}

.future-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 480px;
  margin: 0 auto;
}

.future-list__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border);
}

.future-list__item:last-child {
  border-bottom: none;
}

.future-list__label {
  font-weight: var(--font-semibold);
  color: var(--white);
}

.future-list__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  padding: var(--space-12) var(--space-6);
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4) var(--space-6);
  margin-bottom: var(--space-4);
}

.footer__nav a {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.footer__nav a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer__version {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xs);
  color: var(--text-faint);
}

.footer__copy {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
}