/* ========================================
   MindBloom Blog — Design System & Styles
   ======================================== */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&display=swap');

/* --- Design Tokens --- */
:root {
  /* Colors */
  --color-primary: #1E6B7B;
  --color-primary-light: #2A9D8F;
  --color-primary-pale: #E6F4F1;
  --color-primary-dark: #15505C;
  --color-bg: #FAFBFC;
  --color-surface: #FFFFFF;
  --color-text: #1A2332;
  --color-text-secondary: #5A6B7D;
  --color-text-muted: #8E9BAA;
  --color-border: #E8EDF2;
  --color-border-light: #F0F3F7;
  --color-accent-warm: #F0E6D3;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font Sizes — modular scale */
  --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;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-width-content: 720px;
  --max-width-layout: 1200px;
  --nav-height: 72px;

  /* Effects */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(26, 35, 50, 0.06);
  --shadow-md: 0 4px 16px rgba(26, 35, 50, 0.08);
  --shadow-lg: 0 8px 32px rgba(26, 35, 50, 0.1);
  --shadow-card: 0 2px 12px rgba(26, 35, 50, 0.05);
  --transition-fast: 180ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* --- Reset & Base --- */
*,
*::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-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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-primary-dark);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

/* --- Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width-layout);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--max-width-content);
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 251, 252, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--nav-height);
  transition: box-shadow var(--transition-base);
}

.nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width-layout);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
}

.nav__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
  position: relative;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width var(--transition-base);
}

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

.nav__link:hover::after {
  width: 100%;
}

.nav__social {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-left: var(--space-lg);
  padding-left: var(--space-lg);
  border-left: 1px solid var(--color-border);
}

.nav__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: var(--color-primary);
  background: var(--color-primary-pale);
  border: 1px solid var(--color-primary-light);
  transition: all var(--transition-fast);
}

.nav__social-link:hover {
  color: white;
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 107, 123, 0.15);
}

.nav__social-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.nav__menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--color-text);
}

/* --- Hero Section --- */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-5xl));
  padding-bottom: var(--space-5xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(42, 157, 143, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
}

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

@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.3);
  }
}

.hero__title {
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: italic;
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
  font-weight: 300;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  background: var(--color-primary);
  color: white;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all var(--transition-base);
  box-shadow: 0 4px 16px rgba(30, 107, 123, 0.25);
}

.hero__cta:hover {
  background: var(--color-primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(30, 107, 123, 0.3);
}

.hero__cta svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.hero__cta:hover svg {
  transform: translateX(3px);
}

/* --- Section Base --- */
.section {
  padding: var(--space-5xl) 0;
}

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

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.section__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.section__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Categories Grid --- */
.categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.category-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.category-card:hover {
  border-color: var(--color-primary-pale);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.category-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-lg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-pale);
  color: var(--color-primary);
  transition: all var(--transition-base);
}

.category-card:hover .category-card__icon {
  background: var(--color-primary);
  color: white;
}

.category-card__icon svg {
  width: 28px;
  height: 28px;
}

.category-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.category-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Articles Grid --- */
.articles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.article-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-base);
}

.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}

.article-card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-card__image {
  transform: scale(1.03);
}

.article-card__image-wrapper {
  overflow: hidden;
  position: relative;
}

.article-card__body {
  padding: var(--space-xl);
}

.article-card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-pale);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-md);
}

.article-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.article-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.article-card__read-time {
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-card__read-time svg {
  width: 14px;
  height: 14px;
}

/* --- About Section --- */
.about {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3xl);
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
}

.about__image-wrapper {
  position: relative;
}

.about__image {
  width: 280px;
  height: 340px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.about__image-wrapper::after {
  content: '';
  position: absolute;
  top: 16px;
  left: 16px;
  right: -16px;
  bottom: -16px;
  border: 2px solid var(--color-primary-pale);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.about__content {
  padding: var(--space-xl) 0;
}

.about__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.about__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-lg);
}

.about__text {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.about__philosophy {
  padding: var(--space-xl);
  background: var(--color-primary-pale);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
}

.about__philosophy p {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-primary-dark);
  line-height: 1.7;
}

/* --- Newsletter Section --- */
.newsletter {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-3xl);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
}

.newsletter__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-sm);
}

.newsletter__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.newsletter__form {
  display: flex;
  gap: var(--space-sm);
  max-width: 440px;
  margin: 0 auto;
}

.newsletter__input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
  transition: border-color var(--transition-fast);
}

.newsletter__input::placeholder {
  color: var(--color-text-muted);
}

.newsletter__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 107, 123, 0.1);
}

.newsletter__btn {
  padding: var(--space-md) var(--space-xl);
  background: var(--color-primary);
  color: white;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-base);
}

.newsletter__btn:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(30, 107, 123, 0.25);
}

/* --- Audio Player --- */
.audio-player {
  background: var(--color-primary-pale);
  border-radius: var(--radius-full);
  padding: 8px 16px 8px 8px;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  margin-top: -8px;
}

.audio-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.audio-btn:hover {
  background: var(--color-primary-dark);
  transform: scale(1.05);
}

.audio-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.audio-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.audio-title {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.audio-progress {
  width: 100%;
  height: 4px;
  background: rgba(30, 107, 123, 0.15);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.audio-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--color-primary);
  width: 30%;
  /* Mock progress */
  border-radius: 2px;
}

.audio-time {
  font-size: 0.65rem;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  opacity: 0.8;
}

/* --- Podcast Section --- */
.podcast-episodes {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 800px;
  margin: 0 auto;
}

.episode-card {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  cursor: pointer;
  transition: all var(--transition-base);
}

.episode-card:hover {
  border-color: var(--color-primary-pale);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.episode-card__play {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-base);
  box-shadow: 0 4px 12px rgba(30, 107, 123, 0.2);
}

.episode-card__play:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(30, 107, 123, 0.3);
}

.episode-card__play svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  margin-left: 2px;
}

.episode-card__content {
  flex: 1;
  min-width: 0;
}

.episode-card__number {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.episode-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 6px;
  color: var(--color-text);
}

.episode-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.episode-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.episode-card__meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.episode-card__meta-item svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.episode-card__waveform {
  display: flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
  padding-left: var(--space-md);
}

.episode-card__waveform-bar {
  width: 3px;
  background: var(--color-primary-pale);
  border-radius: 2px;
  transition: background var(--transition-base);
}

.episode-card:hover .episode-card__waveform-bar {
  background: var(--color-primary-light);
  animation: waveform 0.8s ease-in-out infinite alternate;
}

.episode-card__waveform-bar:nth-child(1) {
  height: 16px;
  animation-delay: 0s;
}

.episode-card__waveform-bar:nth-child(2) {
  height: 24px;
  animation-delay: 0.1s;
}

.episode-card__waveform-bar:nth-child(3) {
  height: 12px;
  animation-delay: 0.2s;
}

.episode-card__waveform-bar:nth-child(4) {
  height: 28px;
  animation-delay: 0.15s;
}

.episode-card__waveform-bar:nth-child(5) {
  height: 18px;
  animation-delay: 0.05s;
}

@keyframes waveform {
  0% {
    transform: scaleY(0.5);
  }

  100% {
    transform: scaleY(1);
  }
}

.podcast-cta {
  text-align: center;
  margin-top: var(--space-2xl);
}

.podcast-cta__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  padding: var(--space-md) var(--space-xl);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
}

.podcast-cta__link:hover {
  background: var(--color-primary);
  color: white;
}

.podcast-cta__link svg {
  width: 16px;
  height: 16px;
}

/* Responsive podcast */
@media (max-width: 768px) {
  .episode-card {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .episode-card__play {
    width: 48px;
    height: 48px;
  }

  .episode-card__waveform {
    display: none;
  }
}

/* --- Footer --- */
.footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__logo {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
}

.footer__name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
}

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

.footer__links {
  display: flex;
  gap: var(--space-xl);
  list-style: none;
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

.footer__social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer__social-link {
  color: var(--color-primary);
  background: var(--color-primary-pale);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  color: white;
  background: var(--color-primary);
  transform: translateY(-2px);
}

.footer__social-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* --- Floating Donate Button --- */
.fab-donate {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  font-style: italic;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(30, 107, 123, 0.2);
  border: none;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  overflow: hidden;
}

.fab-donate::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0) 100%);
  transform: skewX(-25deg);
  animation: shine 4s infinite;
}

@keyframes shine {
  0% {
    left: -100%;
  }

  20% {
    left: 200%;
  }

  100% {
    left: 200%;
  }
}

.fab-donate:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 32px rgba(30, 107, 123, 0.35);
}

.fab-donate svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.fab-donate:hover svg {
  transform: scale(1.15) rotate(5deg);
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 {
  transition-delay: 0.1s;
}

.fade-in-delay-2 {
  transition-delay: 0.2s;
}

.fade-in-delay-3 {
  transition-delay: 0.3s;
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* --- Responsive: Tablet (768px) --- */
@media (max-width: 768px) {
  :root {
    --text-5xl: 2.25rem;
    --text-3xl: 1.5rem;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .nav__links {
    display: none;
  }

  .nav__menu-btn {
    display: block;
  }

  /* Mobile menu */
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    padding: var(--space-xl);
    gap: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    animation: slideDown 0.3s ease;
  }

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

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .hero {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
  }

  .categories {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .articles {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .about {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-xl);
  }

  .about__image {
    width: 200px;
    height: 240px;
    margin: 0 auto;
  }

  .about__image-wrapper::after {
    display: none;
  }

  .newsletter__form {
    flex-direction: column;
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }

  .footer__links {
    gap: var(--space-lg);
  }
}

/* --- Responsive: Small Mobile (375px) --- */
@media (max-width: 480px) {
  :root {
    --text-5xl: 1.875rem;
    --text-3xl: 1.375rem;
    --text-2xl: 1.25rem;
  }

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

  .section {
    padding: var(--space-3xl) 0;
  }

  .hero__cta {
    width: 100%;
    justify-content: center;
  }
}

/* ===== Article Page Styles ===== */

/* ========================================
   MindBloom Blog — Article Page Styles
   ======================================== */

/* --- Article Header --- */
.article-header {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-2xl);
    text-align: center;
}

.article-header__tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-pale);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
}

.article-header__title {
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.2;
    max-width: 780px;
    margin: 0 auto var(--space-xl);
    letter-spacing: -0.02em;
}

.article-header__meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.article-header__meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-header__meta-item svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.article-header__author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.article-header__avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

/* --- Cover Image --- */
.article-cover {
    max-width: 900px;
    margin: 0 auto var(--space-3xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.article-cover img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}

/* --- Article Content (Prose) --- */
.article-content {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.article-content h2 {
    font-size: var(--text-2xl);
    margin-top: var(--space-3xl);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-primary-pale);
}

.article-content h3 {
    font-size: var(--text-xl);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
}

.article-content p {
    margin-bottom: var(--space-lg);
    line-height: 1.85;
    color: var(--color-text);
    font-size: 1.05rem;
}

.article-content strong {
    color: var(--color-text);
    font-weight: 600;
}

.article-content em {
    color: var(--color-primary-dark);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.article-content li {
    margin-bottom: var(--space-sm);
    line-height: 1.8;
    font-size: 1.05rem;
}

.article-content li::marker {
    color: var(--color-primary);
}

/* --- Blockquote --- */
.article-content blockquote {
    margin: var(--space-2xl) 0;
    padding: var(--space-xl) var(--space-2xl);
    background: var(--color-primary-pale);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-content blockquote p {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-style: italic;
    color: var(--color-primary-dark);
    line-height: 1.7;
    margin-bottom: 0;
}

.article-content blockquote cite {
    display: block;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-style: normal;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
}

/* --- Key Insight Box --- */
.key-insight {
    margin: var(--space-2xl) 0;
    padding: var(--space-xl);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    position: relative;
}

.key-insight::before {
    content: 'Điểm mấu chốt';
    position: absolute;
    top: -12px;
    left: var(--space-xl);
    background: var(--color-primary);
    color: white;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.key-insight p {
    font-size: var(--text-base);
    color: var(--color-text);
    margin-bottom: 0;
}

/* --- Divider --- */
.article-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    border: none;
    border-radius: 2px;
    margin: var(--space-3xl) auto;
}

/* --- Article Audio Player (inline) --- */
.article-audio {
    max-width: var(--max-width-content);
    margin: 0 auto var(--space-2xl);
    padding: 0 var(--space-xl);
}

.article-audio-player {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xl);
    background: var(--color-primary-pale);
    border-radius: var(--radius-full);
}

.article-audio-player .audio-btn {
    width: 40px;
    height: 40px;
}

.article-audio-player .audio-info {
    flex: 1;
}

/* --- Article Footer (Author Bio + Tags) --- */
.article-footer {
    max-width: var(--max-width-content);
    margin: var(--space-3xl) auto 0;
    padding: var(--space-3xl) var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.article-author-bio {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
    margin-bottom: var(--space-2xl);
}

.article-author-bio__avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.article-author-bio__name {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 4px;
}

.article-author-bio__desc {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* --- Related Articles --- */
.related {
    padding: var(--space-3xl) 0;
}

.related__title {
    font-size: var(--text-2xl);
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.related__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    max-width: 800px;
    margin: 0 auto;
}

/* --- Back link --- */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--color-primary);
}

.back-link svg {
    width: 16px;
    height: 16px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .article-header__title {
        font-size: var(--text-3xl);
    }

    .article-cover img {
        height: 260px;
    }

    .article-header__meta {
        flex-wrap: wrap;
        gap: var(--space-md);
    }

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

    .article-author-bio {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .article-header__title {
        font-size: var(--text-2xl);
    }

    .article-content {
        padding: 0 var(--space-lg);
    }
}