/* ============================================================
   WATERCOLOR MASTERY GUIDE — Global Stylesheet
   Aesthetic: Organic / Studio / Artisan — warm paper tones,
   ink-wash accents, editorial typography
   ============================================================ */

/* ── Fonts: System stack with web-safe fallbacks (no external dependency) ── */
/* Playfair Display → Georgia/Times serif */
/* Lora → Georgia serif */  
/* Inconsolata → Courier monospace */
/* @import removed: replaced with system stacks for offline reliability */

/* ── CSS Custom Properties ────────────────────────────────── */
:root {
  /* Paper & ink palette */
  --paper:        #faf6f0;
  --paper-warm:   #f5ede0;
  --paper-deep:   #ede3d5;
  --ink:          #2a1f14;
  --ink-soft:     #5c4a38;
  --ink-light:    #8a7560;

  /* Watercolor accent palette */
  --cobalt:       #3a6ea5;
  --cobalt-light: #d0e0f5;
  --sienna:       #c4622d;
  --sienna-light: #f5ddd0;
  --sage:         #5c8a6a;
  --sage-light:   #d5e8db;
  --gold:         #c9973b;
  --gold-light:   #f5e8cc;
  --violet:       #7a5c9e;
  --violet-light: #e8d8f5;

  /* Phase colors */
  --phase1: var(--cobalt);
  --phase2: var(--sage);
  --phase3: var(--sienna);
  --phase4: var(--gold);
  --phase5: var(--violet);

  /* Typography */
  --font-display: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  --font-body:    'Lora', 'Georgia', 'Palatino Linotype', serif;
  --font-mono:    'Inconsolata', 'Courier New', 'Consolas', monospace;

  /* Spacing rhythm */
  --space-xs:  0.4rem;
  --space-sm:  0.8rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;

  /* Radii */
  --radius-sm:  4px;
  --radius-md:  10px;
  --radius-lg:  20px;
  --radius-xl:  32px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  min-height: 100vh;
  /* Subtle paper grain texture via SVG noise */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a { color: var(--cobalt); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.25;
  color: var(--ink);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

p { margin-bottom: var(--space-md); max-width: 70ch; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
  font-style: italic;
}

/* ── Layout ───────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ── Site Header ──────────────────────────────────────────── */
.site-header {
  background: var(--ink);
  color: var(--paper);
  padding: var(--space-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid var(--gold);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--paper);
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.site-logo span {
  color: var(--gold);
  font-style: italic;
}

.site-nav {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  align-items: center;
}

.site-nav a {
  color: var(--paper-warm);
  font-size: 0.85rem;
  font-family: var(--font-body);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.site-nav a:hover {
  color: var(--gold);
  text-decoration: none;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 60%, rgba(58,110,165,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(196,98,45,0.10) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 80%, rgba(92,138,106,0.09) 0%, transparent 50%);
  pointer-events: none;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sienna);
  margin-bottom: var(--space-sm);
}

.hero__title {
  margin-bottom: var(--space-md);
}

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

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 55ch;
  margin: 0 auto var(--space-lg);
  font-style: italic;
}

.hero__cta-group {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.7rem 1.8rem;
  border-radius: 40px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s;
  border: 2px solid transparent;
  text-decoration: none;
}

.btn:hover { transform: translateY(-2px); text-decoration: none; }

.btn--primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn--primary:hover { background: var(--cobalt); border-color: var(--cobalt); box-shadow: 0 6px 20px rgba(58,110,165,0.35); }

.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink-light);
}
.btn--outline:hover { border-color: var(--ink); box-shadow: 0 4px 14px rgba(0,0,0,0.1); }

/* ── Phase Overview Grid ──────────────────────────────────── */
.phases-overview {
  padding: var(--space-xl) 0;
  background: var(--paper-warm);
  border-top: 1px solid var(--paper-deep);
  border-bottom: 1px solid var(--paper-deep);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: var(--space-sm);
}

.section-title {
  margin-bottom: var(--space-lg);
}

.phases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.phase-card {
  background: var(--paper);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-md) var(--space-lg);
  border: 1px solid var(--paper-deep);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}

.phase-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--phase-color, var(--cobalt));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.phase-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.1);
  text-decoration: none;
}

.phase-card__num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--phase-color, var(--cobalt));
  opacity: 0.18;
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.phase-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--ink);
}

.phase-card__time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ink-light);
  text-transform: uppercase;
}

.phase-card__desc {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: var(--space-sm);
  margin-bottom: 0;
}

/* ── Phase Header Band ────────────────────────────────────── */
.phase-header {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--paper-deep);
  margin-bottom: var(--space-xl);
}

.phase-header__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--phase-color, var(--cobalt));
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.phase-header__eyebrow::after {
  content: '';
  flex: 1;
  max-width: 80px;
  height: 1px;
  background: var(--phase-color, var(--cobalt));
  opacity: 0.4;
}

.phase-header__objective {
  background: var(--paper-warm);
  border-left: 4px solid var(--phase-color, var(--cobalt));
  padding: var(--space-md) var(--space-lg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: var(--space-md);
  font-style: italic;
  color: var(--ink-soft);
  max-width: 70ch;
}

/* ── Module Cards ─────────────────────────────────────────── */
.module {
  margin-bottom: var(--space-xl);
}

.module__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px dashed var(--paper-deep);
}

.module__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--phase-color, var(--cobalt));
  color: white;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  white-space: nowrap;
  letter-spacing: 0.08em;
}

/* ── Lesson Cards ─────────────────────────────────────────── */
.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.lesson-card {
  background: white;
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  position: relative;
}

.lesson-card__id {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-light);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.lesson-card h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: var(--space-sm);
  color: var(--ink);
}

.lesson-card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: var(--space-sm);
}

/* ── Technique Callout ────────────────────────────────────── */
.technique-box {
  background: var(--paper-warm);
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-md) 0;
}

.technique-box__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-light);
  margin-bottom: var(--space-sm);
}

/* ── Consistency Scale ────────────────────────────────────── */
.consistency-scale {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.consistency-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: white;
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
}

.consistency-swatch {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid var(--paper-deep);
}

.consistency-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  min-width: 60px;
}

.consistency-desc {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 0;
}

/* ── Video Links ──────────────────────────────────────────── */
.video-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #ff0000;
  color: white;
  padding: 0.35rem 0.9rem;
  border-radius: 30px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  transition: background 0.2s, transform 0.15s;
  text-decoration: none;
  margin-top: var(--space-sm);
  font-weight: 600;
}

.video-link:hover {
  background: #cc0000;
  transform: scale(1.03);
  text-decoration: none;
  color: white;
}

.video-link svg {
  width: 14px;
  height: 14px;
  fill: white;
  flex-shrink: 0;
}

.video-links-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

/* ── Milestone Project ────────────────────────────────────── */
.milestone {
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-xl);
  padding: var(--space-lg) var(--space-xl);
  margin: var(--space-xl) 0;
  position: relative;
  overflow: hidden;
}

.milestone::before {
  content: '🏆';
  position: absolute;
  right: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  font-size: 5rem;
  opacity: 0.1;
  pointer-events: none;
}

.milestone__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-sm);
}

.milestone h3 {
  color: var(--paper);
  margin-bottom: var(--space-sm);
}

.milestone p {
  color: var(--paper-warm);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ── Table (Genre Studies) ────────────────────────────────── */
.genre-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: var(--space-md) 0;
}

.genre-table thead {
  background: var(--ink);
  color: var(--paper);
}

.genre-table th {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.genre-table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--paper-deep);
  vertical-align: top;
  color: var(--ink-soft);
}

.genre-table tr:nth-child(even) td { background: var(--paper-warm); }
.genre-table td strong { color: var(--ink); font-family: var(--font-display); }

/* ── Tips / Pro Notes ─────────────────────────────────────── */
.pro-tip {
  background: var(--sage-light);
  border-left: 4px solid var(--sage);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

.pro-tip strong {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  color: var(--sage);
  margin-bottom: 0.3rem;
}

.warning-note {
  background: var(--sienna-light);
  border-left: 4px solid var(--sienna);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-md) 0;
  font-size: 0.9rem;
}

.warning-note strong {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  color: var(--sienna);
  margin-bottom: 0.3rem;
}

/* ── Image Block ──────────────────────────────────────────── */
.visual-block {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-md) 0;
  border: 1px solid var(--paper-deep);
}

.visual-block img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.visual-block__caption {
  background: var(--paper-warm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-style: italic;
  border-top: 1px solid var(--paper-deep);
}

/* ── Progress Nav (Phase Pages) ──────────────────────────── */
.progress-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--paper-deep);
  margin-top: var(--space-xl);
}

.progress-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-family: var(--font-body);
  transition: color 0.2s;
}

.progress-nav a:hover {
  color: var(--cobalt);
  text-decoration: none;
}

.progress-nav__label {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  color: var(--ink-light);
}

/* ── Tag Pills ────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 20px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  font-weight: 600;
}

.tag--beginner { background: var(--sage-light); color: var(--sage); }
.tag--intermediate { background: var(--gold-light); color: var(--gold); }
.tag--advanced { background: var(--violet-light); color: var(--violet); }

/* ── Dry Phase Visual ─────────────────────────────────────── */
.moisture-states {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

@media (min-width: 600px) {
  .moisture-states { grid-template-columns: repeat(4, 1fr); }
}

.moisture-state {
  background: white;
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  text-align: center;
}

.moisture-state__dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  margin: 0 auto var(--space-xs);
  border: 1px solid var(--paper-deep);
}

.moisture-state__name {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
}

.moisture-state__desc {
  font-size: 0.72rem;
  color: var(--ink-soft);
  margin-bottom: 0;
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--ink);
  color: var(--paper-warm);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: var(--space-2xl);
}

.site-footer a { color: var(--gold); }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
}

@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-col h4 {
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer-col p {
  font-size: 0.85rem;
  color: var(--ink-light);
  max-width: none;
}

.footer-col ul {
  list-style: none;
  font-size: 0.88rem;
}

.footer-col li { margin-bottom: 0.4rem; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-md);
  font-size: 0.8rem;
  color: var(--ink-light);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}


/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ── Utilities ────────────────────────────────────────────── */
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.text-center { text-align: center; }
.divider {
  border: none;
  border-top: 1px dashed var(--paper-deep);
  margin: var(--space-xl) 0;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .container { padding: 0 var(--space-md); }
  .hero { padding: var(--space-xl) 0; }
  .milestone { padding: var(--space-md) var(--space-lg); }
  .milestone::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .site-nav { display: none; }
  .lesson-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   MOBILE NAVIGATION, RESPONSIVE & PRACTICE SECTION ADDITIONS
   ============================================================ */

/* ── Active Nav Link ── */
.site-nav a.active {
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
}

/* ── Hamburger Button ── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--paper);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.2s;
}
body.nav-open .hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
body.nav-open .hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Table Scroll Wrapper ── */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-md) 0;
}
.table-scroll .genre-table,
.table-scroll .supplies-table {
  margin: 0;
  min-width: 580px;
}

/* ── Practice Section ── */
.practice-section { margin-top: var(--space-xl); }
.practice-header  { margin-bottom: var(--space-lg); }

.practice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.practice-card {
  background: white;
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  border-top: 3px solid var(--cobalt);
  display: flex;
  flex-direction: column;
}
.practice-card__num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}
.practice-card h4 { font-size: 0.95rem; margin-bottom: var(--space-xs); }
.practice-card p  { font-size: 0.83rem; color: var(--ink-soft); margin-bottom: var(--space-xs); }
.practice-card ul {
  font-size: 0.8rem;
  color: var(--ink-soft);
  padding-left: 1.2em;
  margin-bottom: var(--space-sm);
  flex: 1;
}
.practice-card li { margin-bottom: 0.25rem; }
.practice-card .video-links-row { margin-top: auto; padding-top: var(--space-xs); }

/* btn--complete style */
.btn--complete {
  background: var(--sage) !important;
  color: white !important;
  border-color: var(--sage) !important;
}

/* ── 768px Breakpoint ── */
@media (max-width: 768px) {
  .hamburger { display: flex; }

  .site-header .container { position: relative; flex-wrap: nowrap; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--ink);
    flex-direction: column;
    padding: var(--space-md) var(--space-lg);
    gap: 0;
    border-top: 2px solid var(--gold);
    box-shadow: 0 8px 32px rgba(0,0,0,0.35);
    z-index: 99;
  }
  body.nav-open .site-nav { display: flex; }
  .site-nav a {
    font-size: 1rem;
    letter-spacing: 0;
    text-transform: none;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    width: 100%;
  }
  .site-nav a:last-child { border-bottom: none; }

  .hero { padding: var(--space-xl) 0 var(--space-lg); }
  .phase-header { padding: var(--space-lg) 0 var(--space-md); }
  .milestone { padding: var(--space-md) var(--space-lg); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .advanced-card { grid-template-columns: 1fr; }
  .advanced-card__image { height: 200px; min-height: unset; width: 100%; }
  .progress-nav { flex-direction: column; gap: var(--space-md); }
  .resources-layout { grid-template-columns: 1fr; }
  .resources-sidebar { position: static; }
  .channels-grid { grid-template-columns: 1fr; }
  .perspective-grid { grid-template-columns: 1fr; }
  .paper-compare { grid-template-columns: 1fr; }
  .color-theory-visual { grid-template-columns: 1fr; }
  .genre-cards { grid-template-columns: 1fr; }
}

/* ── 480px Breakpoint ── */
@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .site-logo { font-size: 0.88rem; }
  .hero__title { font-size: clamp(1.5rem, 8vw, 2rem); }
  .hero__cta-group { flex-direction: column; align-items: center; }
  .btn { max-width: 260px; text-align: center; }
  .phases-grid { grid-template-columns: 1fr; }
  .lesson-grid { grid-template-columns: 1fr; }
  .wash-demos { grid-template-columns: 1fr; }
  .pillars-grid { grid-template-columns: 1fr; }
  .pigment-props { grid-template-columns: 1fr; }
  .resist-grid { grid-template-columns: 1fr; }
  .brush-grid { grid-template-columns: repeat(2, 1fr); }
  .supply-grid { grid-template-columns: repeat(2, 1fr); }
  .plein-air-tips { grid-template-columns: 1fr; }
  .recovery-grid { grid-template-columns: 1fr; }
  .voice-grid { grid-template-columns: repeat(2, 1fr); }
  .capstone-specs { grid-template-columns: 1fr 1fr; }
  .business-grid { grid-template-columns: 1fr; }
  .practice-grid { grid-template-columns: 1fr; }
  .video-link { font-size: 0.7rem; padding: 0.3rem 0.7rem; }
  .video-links-row { flex-direction: column; gap: 0.4rem; }
  .milestone h3 { font-size: 1.1rem; }
  .milestone::before { display: none; }
  .phase-card__num { font-size: 2rem; }
  .consistency-row { flex-wrap: wrap; gap: var(--space-xs); }
  .footer-col ul li { font-size: 0.8rem; }
  h1 { font-size: clamp(1.4rem, 7vw, 2rem); }
  h2 { font-size: clamp(1.15rem, 5vw, 1.5rem); }
}