/* ============================================================
   PLUNGE COLLECTIVE — Design System
   Aesthetic: Arctic Editorial — premium magazine meets athletic recovery
   ============================================================ */

/* --- Design Tokens --- */
:root {
  --color-primary: #0B3D5E;
  --color-primary-dark: #072C44;
  --color-primary-light: #0E4F7A;
  --color-accent: #00C2D1;
  --color-accent-dark: #00A3B0;
  --color-accent-glow: rgba(0, 194, 209, 0.15);
  --color-bg: #F7F5F2;
  --color-surface: #FFFFFF;
  --color-surface-warm: #F0EDE8;
  --color-dark: #0A2237;
  --color-dark-surface: #0E2D47;
  --color-text: #1A1A2E;
  --color-text-secondary: #4A5568;
  --color-muted: #6B7280;
  --color-border: #E2E0DC;
  --color-border-light: #ECEAE6;

  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Crimson Pro', Georgia, serif;
  --font-mono: 'Fira Code', monospace;
  --font-ui: 'Crimson Pro', sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;
  --space-12: 96px;
  --space-16: 128px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 3px rgba(11, 61, 94, 0.06), 0 1px 2px rgba(11, 61, 94, 0.04);
  --shadow-md: 0 4px 12px rgba(11, 61, 94, 0.08), 0 2px 4px rgba(11, 61, 94, 0.04);
  --shadow-lg: 0 12px 32px rgba(11, 61, 94, 0.1), 0 4px 8px rgba(11, 61, 94, 0.06);
  --shadow-xl: 0 20px 48px rgba(11, 61, 94, 0.14), 0 8px 16px rgba(11, 61, 94, 0.06);

  --transition-fast: 150ms cubic-bezier(0.23, 1, 0.32, 1);
  --transition-base: 250ms cubic-bezier(0.23, 1, 0.32, 1);
  --transition-slow: 400ms cubic-bezier(0.23, 1, 0.32, 1);

  --max-width: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.scroll-locked {
  overflow: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input {
  font-family: inherit;
}

/* --- Accessibility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* --- Container --- */
.container,
.wrap {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

@media (min-width: 768px) {
  .container,
  .wrap {
    padding-inline: var(--space-5);
  }
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 2rem + 3vw, 4.5rem); }
h2 { font-size: clamp(2rem, 1.5rem + 2vw, 3rem); }
h3 { font-size: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem); }
h4 { font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem); }

p + p {
  margin-top: var(--space-2);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 12px 28px;
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.05em;
  line-height: 1.2;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
  min-height: 44px;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-dark);
  box-shadow: 0 4px 14px rgba(0, 194, 209, 0.3);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-dark);
  box-shadow: 0 6px 20px rgba(0, 194, 209, 0.4);
}

.btn--primary:focus-visible {
  outline-color: var(--color-primary);
}

.btn--secondary {
  background-color: var(--color-primary);
  color: var(--color-surface);
  box-shadow: 0 4px 14px rgba(11, 61, 94, 0.25);
}

.btn--secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-surface);
  box-shadow: 0 6px 20px rgba(11, 61, 94, 0.35);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--ghost:hover {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

.btn--ghost-light {
  background-color: transparent;
  color: var(--color-surface);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn--ghost-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-surface);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1.25rem;
}

/* --- Site Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(247, 245, 242, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition-base);
  height: var(--header-height);
}

.site-header.header--shadowed {
  box-shadow: 0 2px 20px rgba(11, 61, 94, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
  height: 100%;
}

@media (min-width: 768px) {
  .header-inner {
    padding-inline: var(--space-5);
  }
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  text-decoration: none;
  z-index: 101;
}

.logo-img {
  height: 52px;
  width: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  line-height: 1;
}

.site-nav {
  display: none;
}

@media (min-width: 1024px) {
  .site-nav {
    display: block;
  }
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-list a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav-list a:hover {
  color: var(--color-accent);
}

.header-cta {
  display: none;
}

@media (min-width: 1024px) {
  .header-cta {
    display: block;
  }
}

.hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  z-index: 101;
  color: var(--color-primary);
}

@media (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}

.hamburger svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
}

/* --- Mobile Nav --- */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-primary);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.mobile-nav.active {
  opacity: 1;
  pointer-events: auto;
}

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

.mobile-nav-list a {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-surface);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
}

.mobile-nav-list a:hover {
  color: var(--color-accent);
}

.mobile-nav-cta {
  width: 80%;
  max-width: 300px;
}

.mobile-nav-cta .btn {
  width: 100%;
}

/* --- Sections --- */
.section {
  padding: var(--space-10) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-12) 0;
  }
}

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-surface);
  position: relative;
}

.section--dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 40px,
      rgba(255, 255, 255, 0.015) 40px,
      rgba(255, 255, 255, 0.015) 41px
    );
  pointer-events: none;
}

.section--dark h2,
.section--dark h3 {
  color: var(--color-surface);
}

.section--parchment {
  background-color: var(--color-surface-warm);
}

.section-header {
  margin-bottom: var(--space-6);
}

.section-header.centered {
  text-align: center;
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
  display: block;
}

.section-title {
  font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  margin-bottom: var(--space-2);
}

.section-sub {
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  color: var(--color-muted);
  max-width: 600px;
  line-height: 1.65;
}

.section-header.centered .section-sub {
  margin-inline: auto;
}

/* --- Page Hero --- */
.page-hero {
  background-color: var(--color-primary);
  padding: var(--space-16) 0 var(--space-10);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(0, 194, 209, 0.08), transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 194, 209, 0.05), transparent 50%);
  pointer-events: none;
}

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

.page-hero-title {
  color: var(--color-surface);
  font-size: clamp(2.5rem, 2rem + 3vw, 4rem);
  margin-bottom: var(--space-2);
}

.page-hero-sub {
  color: rgba(255, 255, 255, 0.75);
  font-size: clamp(1.05rem, 1rem + 0.25vw, 1.2rem);
  max-width: 640px;
  line-height: 1.65;
}

/* --- Prose --- */
.prose-layout {
  max-width: 760px;
  margin-inline: auto;
  padding: var(--space-8) var(--space-3);
}

@media (min-width: 768px) {
  .prose-layout {
    padding: var(--space-10) var(--space-5);
  }
}

.prose h2 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  font-size: clamp(1.75rem, 1.5rem + 1vw, 2.25rem);
}

.prose h3 {
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
  font-size: clamp(1.375rem, 1.25rem + 0.5vw, 1.625rem);
}

.prose p {
  margin-bottom: var(--space-3);
  line-height: 1.7;
}

.prose ul,
.prose ol {
  margin-bottom: var(--space-3);
  padding-left: var(--space-4);
}

.prose ul {
  list-style: disc;
}

.prose ol {
  list-style: decimal;
}

.prose li {
  margin-bottom: var(--space-1);
  line-height: 1.7;
}

.prose a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.prose a:hover {
  color: var(--color-primary);
}

.prose-lead {
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.prose-callout {
  background-color: var(--color-accent-glow);
  border-left: 4px solid var(--color-accent);
  padding: var(--space-3) var(--space-4);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: var(--space-4);
}

/* --- Breadcrumbs --- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-size: 0.875rem;
  color: var(--color-muted);
  padding: var(--space-3) 0;
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  color: var(--color-border);
  user-select: none;
}

/* --- Homepage Hero --- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(180deg, rgba(10, 34, 55, 0.3) 0%, rgba(10, 34, 55, 0.6) 50%, rgba(10, 34, 55, 0.92) 100%);
}

.hero-noise {
  position: absolute;
  inset: 0;
  z-index: 3;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 4;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--space-16) var(--space-3) var(--space-10);
  width: 100%;
}

@media (min-width: 768px) {
  .hero-content {
    padding-inline: var(--space-5);
  }
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
  display: block;
}

.hero-title {
  font-size: clamp(3rem, 2.5rem + 4vw, 6rem);
  color: var(--color-surface);
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: var(--space-3);
  max-width: 700px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1rem + 0.25vw, 1.25rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 520px;
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* --- Value Props --- */
.value-props {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .value-props {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
  }
}

.value-prop {
  text-align: center;
  padding: var(--space-5) var(--space-4);
}

.value-prop-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-3);
  background-color: var(--color-accent-glow);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-prop-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.5;
}

.value-prop h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-1);
}

.value-prop p {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Article Cards --- */
.article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

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

@media (min-width: 1024px) {
  .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.article-card__img-wrap {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.article-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-card__img {
  transform: scale(1.05);
}

.article-card__body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-card__cat {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

.article-card__title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-1);
}

.article-card__title a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.article-card__title a:hover {
  color: var(--color-accent);
}

.article-card__excerpt {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-2);
  margin-top: var(--space-2);
  border-top: 1px solid var(--color-border-light);
}

.article-card__meta {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.article-card__read-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  text-decoration: none;
  transition: gap var(--transition-fast);
}

.article-card__read-more:hover {
  gap: 8px;
  color: var(--color-accent);
}

.article-card__read-more svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.article-card.featured {
  grid-column: 1 / -1;
}

@media (min-width: 768px) {
  .article-card.featured {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
  }

  .article-card.featured .article-card__img-wrap {
    aspect-ratio: auto;
    min-height: 300px;
  }

  .article-card.featured .article-card__body {
    padding: var(--space-5);
    justify-content: center;
  }

  .article-card.featured .article-card__title {
    font-size: 1.75rem;
  }
}

/* --- Category Cards --- */
.categories-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

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

@media (min-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.category-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.category-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.category-card-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-card-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.5;
}

.category-card-text h3 {
  font-size: 1.125rem;
  margin-bottom: 4px;
  line-height: 1.2;
}

.category-card-text p {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.5;
}

/* --- Lead Magnet / Email Signup --- */
.lead-magnet {
  background-color: var(--color-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-4);
  display: grid;
  gap: var(--space-5);
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .lead-magnet {
    grid-template-columns: 1fr 1fr;
    padding: var(--space-8) var(--space-6);
    align-items: center;
  }
}

.lead-magnet::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 100% 0%, rgba(0, 194, 209, 0.12), transparent 60%);
  pointer-events: none;
}

.lead-magnet__text {
  position: relative;
  z-index: 1;
}

.lead-magnet__eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
  display: block;
}

.lead-magnet__headline {
  font-size: clamp(1.75rem, 1.5rem + 1.5vw, 2.5rem);
  color: var(--color-surface);
  margin-bottom: var(--space-2);
}

.lead-magnet__sub {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  line-height: 1.6;
}

.lead-magnet__form {
  position: relative;
  z-index: 1;
}

.lead-magnet__input-row {
  display: flex;
  gap: var(--space-1);
}

@media (max-width: 639px) {
  .lead-magnet__input-row {
    flex-direction: column;
  }
}

.form-input {
  flex: 1;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-surface);
  transition: border-color var(--transition-fast);
  min-height: 44px;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-legal {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: var(--space-1);
  line-height: 1.5;
}

.email-form {
  display: flex;
  gap: var(--space-1);
}

@media (max-width: 639px) {
  .email-form {
    flex-direction: column;
  }
}

.email-input {
  flex: 1;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
  min-height: 44px;
}

.email-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* --- Free Guide Page --- */
.guide-hero {
  background-color: var(--color-dark);
  padding: var(--space-16) 0 var(--space-10);
  position: relative;
  overflow: hidden;
}

.guide-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 100%, rgba(0, 194, 209, 0.1), transparent 50%),
    radial-gradient(ellipse at 70% 0%, rgba(11, 61, 94, 0.3), transparent 50%);
  pointer-events: none;
}

.guide-hero__inner {
  display: grid;
  gap: var(--space-6);
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .guide-hero__inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding-inline: var(--space-5);
    gap: var(--space-8);
  }
}

.guide-hero__title {
  font-size: clamp(2.5rem, 2rem + 3vw, 4rem);
  color: var(--color-surface);
  margin-bottom: var(--space-2);
  letter-spacing: -0.03em;
}

.guide-hero__sub {
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.15rem);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

.guide-checklist {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.guide-checklist li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
}

.guide-checklist li svg {
  width: 20px;
  height: 20px;
  min-width: 20px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 2;
}

.guide-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  box-shadow: var(--shadow-xl);
}

.guide-card h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-1);
  text-align: center;
}

.guide-card p {
  color: var(--color-muted);
  text-align: center;
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
}

.guide-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.guide-form .form-input {
  background-color: var(--color-bg);
  border-color: var(--color-border);
  color: var(--color-text);
}

.guide-form .form-input::placeholder {
  color: var(--color-muted);
}

.guide-form .form-input:focus {
  border-color: var(--color-accent);
}

.guide-form .btn {
  width: 100%;
}

.guide-form .form-legal {
  color: var(--color-muted);
}

/* --- Benefits Grid --- */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

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

.benefit {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.benefit__icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefit__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.5;
}

.benefit__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.benefit__desc {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.55;
}

/* --- TOC Preview --- */
.toc-preview {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.toc-preview h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-3);
  text-align: center;
}

.toc-preview ol {
  counter-reset: toc-counter;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.toc-preview ol li {
  counter-increment: toc-counter;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  padding: var(--space-1) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.toc-preview ol li::before {
  content: counter(toc-counter, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-accent);
  min-width: 32px;
  letter-spacing: 0.02em;
}

.toc-preview ol li:last-child {
  border-bottom: none;
}

/* --- Bottom CTA --- */
.bottom-cta {
  background-color: var(--color-dark);
  padding: var(--space-10) 0;
  text-align: center;
  position: relative;
}

.bottom-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(0, 194, 209, 0.08), transparent 70%);
  pointer-events: none;
}

.bottom-cta h2 {
  color: var(--color-surface);
  margin-bottom: var(--space-2);
  position: relative;
}

.bottom-cta p {
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: var(--space-5);
  font-size: 1.05rem;
  position: relative;
}

.inline-form {
  display: flex;
  gap: var(--space-1);
  max-width: 480px;
  margin-inline: auto;
  position: relative;
}

@media (max-width: 639px) {
  .inline-form {
    flex-direction: column;
  }
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding-top: var(--space-8);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
  padding-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    padding-inline: var(--space-5);
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}

.footer-brand .logo-img {
  height: 40px;
  filter: brightness(0) invert(1);
}

.footer-brand .logo-text {
  color: var(--color-surface);
}

.footer-tagline {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.5);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--color-surface);
  margin-bottom: var(--space-1);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-3) var(--space-3);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
  max-width: var(--max-width);
  margin-inline: auto;
}

@media (min-width: 768px) {
  .footer-bottom {
    padding-inline: var(--space-5);
  }
}

.footer-copyright {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer-legal {
  display: flex;
  gap: var(--space-2);
}

.footer-legal a {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-accent);
}

/* --- Scroll Reveal --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.23, 1, 0.32, 1), transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --- Utilities --- */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }

/* --- Responsive --- */
@media (max-width: 767px) {
  .hero {
    min-height: 80vh;
  }
  .hero-content {
    padding-top: var(--space-12);
  }
}