@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Lora:ital,wght@0,400;0,500;0,600;1,400&display=swap');

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

:root {
  --color-bg: #F8F8F8;
  --color-panel: #E0E0E0;
  --color-text-primary: #333333;
  --color-text-secondary: #505050;
  --color-border: #BBBBBB;
  --color-accent-blue: #4A90E2;
  --color-accent-green: #7ED321;
  --color-accent-dark: #505050;
  --color-white: #ffffff;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Lora', serif;
  --container-max: 1280px;
  --section-pad-v: 96px;
  --section-pad-v-sm: 56px;
  --radius-card: 4px;
  --transition-base: 0.35s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: #2a6fc7;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 32px;
  padding-right: 32px;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-text-primary);
  line-height: 1.2;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 600; }

p { margin-bottom: 1.2em; }
p:last-child { margin-bottom: 0; }

ul, ol {
  padding-left: 1.4em;
  margin-bottom: 1.2em;
}

li {
  margin-bottom: 0.5em;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  display: block;
  margin-bottom: 14px;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: var(--color-accent-blue);
  margin: 20px 0 32px;
  border: none;
}

.section-divider.green {
  background: var(--color-accent-green);
}

.section-divider.centered {
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 13px 30px;
  border-radius: var(--radius-card);
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform 0.2s ease, box-shadow 0.2s ease;
  border: 2px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent-blue);
  color: var(--color-white);
  border-color: var(--color-accent-blue);
}

.btn-primary:hover {
  background: #2a6fc7;
  border-color: #2a6fc7;
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74,144,226,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent-blue);
  border-color: var(--color-accent-blue);
}

.btn-outline:hover {
  background: var(--color-accent-blue);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--color-text-primary);
  color: var(--color-white);
  border-color: var(--color-text-primary);
}

.btn-dark:hover {
  background: #111;
  border-color: #111;
  color: var(--color-white);
  transform: translateY(-2px);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ===== SITE HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 900;
  background: rgba(248,248,248,0.97);
  border-bottom: 1px solid var(--color-panel);
  backdrop-filter: blur(6px);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.header-logo {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo:hover {
  color: var(--color-accent-blue);
}

.header-logo span {
  color: var(--color-accent-blue);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding: 8px 12px;
  border-radius: 3px;
  text-decoration: none;
  transition: color var(--transition-base), background var(--transition-base);
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-accent-blue);
  background: rgba(74,144,226,0.08);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* ===== SITE FOOTER ===== */
.site-footer {
  background: #1f2023;
  color: #ccc;
  padding-top: 64px;
  padding-bottom: 0;
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  display: block;
}

.footer-brand-name span {
  color: var(--color-accent-blue);
}

.footer-tagline {
  color: #999;
  line-height: 1.6;
  margin-bottom: 0;
  font-size: 0.85rem;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 18px;
}

.footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li {
  margin-bottom: 9px;
}

.footer-nav a {
  color: #aaa;
  text-decoration: none;
  font-size: 0.86rem;
  transition: color 0.25s;
}

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

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  color: #aaa;
  font-size: 0.86rem;
  align-items: flex-start;
}

.footer-contact-icon {
  flex-shrink: 0;
  color: var(--color-accent-blue);
  margin-top: 2px;
}

.footer-hours {
  margin-top: 4px;
}

.footer-hours dt {
  color: #ddd;
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 8px;
}

.footer-hours dd {
  color: #aaa;
  font-size: 0.84rem;
  margin-left: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-copy {
  font-size: 0.8rem;
  color: #666;
}

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

.footer-legal-links a {
  font-size: 0.8rem;
  color: #666;
  text-decoration: none;
  transition: color 0.25s;
}

.footer-legal-links a:hover {
  color: #aaa;
}

/* ===== COOKIE BANNER ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #1f2023;
  border-top: 2px solid var(--color-accent-blue);
  z-index: 9999;
  padding: 18px 32px;
  display: none;
}

.cookie-banner.visible {
  display: block;
}

.cookie-banner-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-text {
  flex: 1;
  font-size: 0.86rem;
  color: #ccc;
  line-height: 1.6;
  min-width: 240px;
}

.cookie-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
  flex-wrap: wrap;
  align-items: center;
}

.cookie-btn {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 9px 22px;
  border-radius: 3px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

.cookie-btn-accept {
  background: var(--color-accent-blue);
  color: #fff;
  border-color: var(--color-accent-blue);
}

.cookie-btn-accept:hover {
  background: #2a6fc7;
  border-color: #2a6fc7;
}

.cookie-btn-decline {
  background: transparent;
  color: #aaa;
  border-color: #555;
}

.cookie-btn-decline:hover {
  border-color: #aaa;
  color: #ddd;
}

.cookie-btn-learn {
  background: transparent;
  color: var(--color-accent-blue);
  border-color: transparent;
  font-size: 0.78rem;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 9px 0;
  cursor: pointer;
}

.cookie-btn-learn:hover {
  color: #2a6fc7;
  text-decoration: underline;
}

/* ===== PAGE HERO ===== */
.page-hero {
  background: var(--color-text-primary);
  padding: 120px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(74,144,226,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero-label {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  display: block;
  margin-bottom: 16px;
}

.page-hero h1 {
  color: #fff;
  max-width: 680px;
}

.page-hero .lead-text {
  color: #bbb;
  max-width: 560px;
  margin-top: 20px;
  font-size: 1.05rem;
}

/* ===== INDEX HERO ===== */
.hero-block {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0e1218;
}

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(14,18,24,0.65) 0%, rgba(14,18,24,0.45) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 820px;
}

.hero-content .section-label {
  color: #7ed321;
  font-size: 0.78rem;
}

.hero-content h1 {
  color: #fff;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.35);
}

.hero-content .hero-sub {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 36px;
  font-family: var(--font-body);
}

/* ===== SECTION: SCIENCE OF SOUND ===== */
.science-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.science-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 64px;
  align-items: center;
}

.science-text h2 {
  margin-bottom: 10px;
}

.science-text p {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.science-visual {
  background: #fff;
  border: 1px solid var(--color-panel);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.07);
}

.science-img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  display: block;
}

.sound-wave-diagram {
  padding: 28px;
  background: #fff;
}

.wave-label {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  margin-bottom: 18px;
  display: block;
}

.wave-svg-wrap {
  padding: 0 0 16px;
}

/* ===== SECTION: DAILY HABITS ===== */
.habits-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-text-primary);
}

.habits-section h2 {
  color: #fff;
}

.habits-section .section-label {
  color: var(--color-accent-green);
}

.habits-section .section-divider {
  background: var(--color-accent-green);
}

.habits-intro {
  color: rgba(255,255,255,0.7);
  max-width: 560px;
  margin-bottom: 52px;
}

.habits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.habit-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  transition: background var(--transition-base), transform 0.25s ease, box-shadow 0.25s ease;
}

.habit-card:hover {
  background: rgba(255,255,255,0.09);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.habit-num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-accent-green);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 16px;
}

.habit-card h3 {
  color: #fff;
  margin-bottom: 12px;
  font-size: 1.05rem;
}

.habit-card p {
  color: rgba(255,255,255,0.62);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* ===== SECTION: NATURAL ELEMENTS ===== */
.natural-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
  overflow: hidden;
}

.natural-split {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 0;
  min-height: 520px;
}

.natural-img-wrap {
  position: relative;
  overflow: hidden;
}

.natural-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s ease;
}

.natural-img-wrap:hover img {
  transform: scale(1.02);
}

.natural-text-wrap {
  background: #fff;
  padding: 56px 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-top: 4px solid var(--color-accent-green);
}

.natural-text-wrap h2 {
  margin-bottom: 10px;
}

.natural-text-wrap p {
  color: var(--color-text-secondary);
  font-size: 0.97rem;
}

.natural-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
}

.natural-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-panel);
  font-size: 0.93rem;
  color: var(--color-text-secondary);
}

.natural-list li:last-child {
  border-bottom: none;
}

.natural-list .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-green);
  flex-shrink: 0;
  margin-top: 7px;
}

/* ===== SECTION: ENVIRONMENTAL FACTORS ===== */
.env-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-panel);
}

.env-inner {
  max-width: 860px;
}

.env-section h2 {
  margin-bottom: 10px;
}

.env-section h3 {
  margin: 32px 0 10px;
  color: var(--color-accent-blue);
}

.env-section p,
.env-section li {
  color: var(--color-text-secondary);
}

.env-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
}

.env-list li {
  padding: 9px 0 9px 22px;
  position: relative;
  border-bottom: 1px solid rgba(0,0,0,0.07);
  font-size: 0.97rem;
}

.env-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--color-accent-blue);
  border-radius: 50%;
}

/* ===== SECTION: AUDITORY SYSTEM ===== */
.auditory-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.auditory-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.auditory-text h2 {
  margin-bottom: 10px;
}

.auditory-text p,
.auditory-text li {
  color: var(--color-text-secondary);
  font-size: 0.97rem;
}

.auditory-img-panel {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,0.12);
}

.auditory-img-panel img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.auditory-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--color-accent-blue);
  color: #fff;
  padding: 10px 20px;
  border-radius: 3px;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ===== SECTION: MISCONCEPTIONS ===== */
.myth-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.myth-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

.myth-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 24px;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.myth-block, .fact-block {
  padding: 36px 40px;
}

.myth-block {
  background: #e8e8e8;
  border-right: 3px solid var(--color-border);
}

.fact-block {
  background: var(--color-bg);
  border-left: 3px solid var(--color-accent-green);
}

.myth-tag {
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 8px;
  display: block;
}

.fact-tag {
  font-family: var(--font-heading);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-green);
  margin-bottom: 8px;
  display: block;
}

.myth-block h3, .fact-block h3 {
  margin-bottom: 12px;
  font-size: 1rem;
}

.myth-block p, .fact-block p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* ===== SECTION: EVOLUTION / TIMELINE ===== */
.evolution-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-text-primary);
  overflow: hidden;
}

.evolution-section h2 {
  color: #fff;
  text-align: center;
  margin-bottom: 10px;
}

.evolution-section .section-label {
  text-align: center;
  display: block;
}

.evolution-section .section-divider {
  margin: 20px auto 52px;
}

.evolution-img-strip {
  width: 100%;
  height: 320px;
  object-fit: cover;
  margin-bottom: 64px;
  opacity: 0.7;
}

.timeline {
  position: relative;
  padding: 0 0 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  background: rgba(255,255,255,0.1);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 48px;
  position: relative;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-item:nth-child(even) .timeline-body {
  text-align: right;
}

.timeline-marker {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 5px rgba(74,144,226,0.2);
}

.timeline-body {
  flex: 1;
  padding-top: 8px;
}

.timeline-body h3 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 8px;
}

.timeline-body p {
  color: rgba(255,255,255,0.58);
  font-size: 0.88rem;
  margin-bottom: 0;
}

/* ===== SECTION: GLOSSARY ===== */
.glossary-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.glossary-header {
  margin-bottom: 48px;
}

.glossary-img-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.glossary-img-row img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

.glossary-block {
  background: var(--color-panel);
  border-radius: var(--radius-card);
  padding: 8px;
}

.glossary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.glossary-term-col, .glossary-def-col {
  padding: 0;
}

.glossary-row {
  display: contents;
}

.glossary-term {
  background: #d6d6d6;
  padding: 14px 20px;
  border-bottom: 1px solid #ccc;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.glossary-def {
  background: var(--color-bg);
  padding: 14px 20px;
  border-bottom: 1px solid #d4d4d4;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

.glossary-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 4px;
  overflow: hidden;
}

.glossary-table th {
  background: #d0d0d0;
  padding: 14px 20px;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-align: left;
}

.glossary-table td {
  padding: 13px 20px;
  border-bottom: 1px solid #d8d8d8;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  vertical-align: top;
}

.glossary-table td:first-child {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text-primary);
  background: rgba(0,0,0,0.025);
  width: 32%;
}

.glossary-table tr:last-child td {
  border-bottom: none;
}

.glossary-table tr:hover td {
  background: rgba(74,144,226,0.04);
}

/* ===== SECTION: PRACTICAL TIPS ===== */
.tips-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-panel);
}

.tips-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 52px;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tip-card {
  background: var(--color-bg);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border-bottom: 3px solid transparent;
}

.tip-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(0,0,0,0.1);
  border-bottom-color: var(--color-accent-blue);
}

.tip-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tip-icon svg {
  width: 40px;
  height: 40px;
}

.tip-card h3 {
  margin-bottom: 12px;
  font-size: 1rem;
}

.tip-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* ===== SECTION: RESEARCH SPOTLIGHT ===== */
.research-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.research-img-full {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
  margin-bottom: 64px;
}

.research-blocks {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.research-block {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid var(--color-panel);
  align-items: flex-start;
}

.research-block:last-child {
  border-bottom: none;
}

.research-num {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-panel);
  line-height: 1;
  padding-top: 4px;
}

.research-body h2 {
  margin-bottom: 10px;
  font-size: 1.3rem;
}

.research-body p {
  color: var(--color-text-secondary);
  font-size: 0.96rem;
  max-width: 680px;
}

.research-stat-strip {
  display: flex;
  gap: 32px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-accent-blue);
  line-height: 1;
}

.stat-label {
  font-size: 0.78rem;
  color: #999;
  font-family: var(--font-heading);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ===== ABOUT PAGE ===== */
.about-intro-block {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.about-intro-text {
  max-width: 780px;
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.about-intro-text h2 {
  font-size: 1.1rem;
  margin-bottom: 0;
  color: var(--color-text-secondary);
  font-weight: 400;
  font-family: var(--font-body);
  font-style: italic;
}

.about-split {
  padding: var(--section-pad-v) 0;
  background: var(--color-panel);
}

.about-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-mission-box {
  background: var(--color-accent-blue);
  color: #fff;
  padding: 36px 40px;
  border-radius: var(--radius-card);
  margin-top: 32px;
}

.about-mission-box h3 {
  color: #fff;
  margin-bottom: 12px;
}

.about-mission-box p {
  color: rgba(255,255,255,0.82);
  font-size: 0.95rem;
}

.about-img-panel img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: 6px;
  display: block;
  box-shadow: 0 20px 56px rgba(0,0,0,0.14);
}

.about-values {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.value-item {
  padding: 0;
}

.value-accent-line {
  width: 36px;
  height: 3px;
  background: var(--color-accent-blue);
  margin-bottom: 18px;
}

.value-item h3 {
  margin-bottom: 10px;
}

.value-item p {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

/* ===== FAQ PAGE ===== */
.faq-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-panel);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 24px 0;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color 0.25s;
}

.faq-question:hover {
  color: var(--color-accent-blue);
}

.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-panel);
  transition: background 0.25s, transform 0.35s;
}

.faq-item.open .faq-icon {
  background: var(--color-accent-blue);
  transform: rotate(45deg);
}

.faq-icon svg {
  width: 12px;
  height: 12px;
  stroke: var(--color-text-secondary);
  transition: stroke 0.25s;
}

.faq-item.open .faq-icon svg {
  stroke: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 600px;
  padding-bottom: 24px;
}

.faq-answer p {
  color: var(--color-text-secondary);
  font-size: 0.97rem;
  padding-right: 48px;
}

/* ===== ADVICES PAGE ===== */
.advices-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.advices-intro-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
  margin-bottom: 72px;
  border-radius: 4px;
}

.advices-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.advice-card {
  background: #fff;
  border-radius: var(--radius-card);
  padding: 36px 36px 40px;
  border-left: 4px solid var(--color-accent-blue);
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.advice-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 36px rgba(0,0,0,0.1);
}

.advice-card:nth-child(even) {
  border-left-color: var(--color-accent-green);
}

.advice-card h3 {
  margin-bottom: 14px;
}

.advice-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.advice-card ul li {
  padding: 8px 0 8px 20px;
  border-bottom: 1px solid var(--color-panel);
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  position: relative;
}

.advice-card ul li:last-child {
  border-bottom: none;
}

.advice-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-blue);
}

.advice-card:nth-child(even) ul li::before {
  background: var(--color-accent-green);
}

/* ===== POLICY PAGES ===== */
.policy-section {
  padding: var(--section-pad-v) 0;
  background: var(--color-bg);
}

.policy-content {
  max-width: 840px;
}

.policy-content h2 {
  margin-top: 48px;
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.policy-content h3 {
  margin-top: 28px;
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.policy-content p,
.policy-content li {
  color: var(--color-text-secondary);
  font-size: 0.97rem;
}

.policy-blockquote {
  border-left: 4px solid var(--color-accent-blue);
  padding: 16px 24px;
  background: rgba(74,144,226,0.06);
  margin: 28px 0;
  border-radius: 0 4px 4px 0;
}

.policy-blockquote p {
  margin-bottom: 0;
  font-style: italic;
  color: var(--color-text-primary);
}

.policy-content hr {
  border: none;
  border-top: 1px solid var(--color-panel);
  margin: 40px 0;
}

.policy-numbered {
  counter-reset: policy-num;
  list-style: none;
  padding: 0;
}

.policy-numbered > li {
  counter-increment: policy-num;
  padding-left: 28px;
  position: relative;
  margin-bottom: 18px;
}

.policy-numbered > li::before {
  content: counter(policy-num) ".";
  position: absolute;
  left: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-accent-blue);
}

.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9rem;
}

.cookie-table th {
  background: var(--color-panel);
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  border-bottom: 2px solid var(--color-border);
}

.cookie-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-panel);
  color: var(--color-text-secondary);
  vertical-align: top;
}

.cookie-table tr:last-child td {
  border-bottom: none;
}

.disclaimer-warning {
  background: #fff8e1;
  border: 2px solid #f0c040;
  border-radius: 4px;
  padding: 24px 28px;
  margin: 36px 0;
}

.disclaimer-warning p {
  color: #5a4500;
  margin-bottom: 0;
}

.disclaimer-warning strong {
  color: #3a2d00;
}

/* ===== ANIMATIONS ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .science-grid {
    grid-template-columns: 1fr;
  }

  .natural-split {
    grid-template-columns: 1fr;
  }

  .natural-img-wrap {
    height: 360px;
  }

  .research-block {
    grid-template-columns: 72px 1fr;
    gap: 24px;
  }

  .research-num {
    font-size: 2.5rem;
  }

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

@media (max-width: 900px) {
  :root {
    --section-pad-v: 64px;
  }

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

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

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

  .myth-pair {
    grid-template-columns: 1fr;
  }

  .myth-block {
    border-right: none;
    border-bottom: 3px solid var(--color-border);
  }

  .about-split-grid {
    grid-template-columns: 1fr;
  }

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

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

  .glossary-img-row {
    grid-template-columns: 1fr 1fr;
  }

  .timeline::before {
    left: 24px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    flex-direction: row;
  }

  .timeline-item:nth-child(even) .timeline-body {
    text-align: left;
  }

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

@media (max-width: 640px) {
  :root {
    --section-pad-v: 48px;
  }

  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    border-top: 1px solid var(--color-panel);
    border-bottom: 1px solid var(--color-panel);
    flex-direction: column;
    gap: 0;
    padding: 12px 0;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 12px 24px;
    border-radius: 0;
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

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

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

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

  .glossary-img-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-banner-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .research-stat-strip {
    gap: 24px;
  }

  .research-block {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .research-num {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .myth-block, .fact-block {
    padding: 24px 20px;
  }

  .hero-block {
    min-height: 80vh;
  }

  .page-hero {
    padding: 110px 0 56px;
  }

  .about-split-grid {
    grid-template-columns: 1fr;
  }
}