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

:root {
  /* Surface */
  --bg:            #000000;
  --bg-elevated:   #0a0a0a;
  --bg-card:       #111113;
  --bg-terminal:   #0c0c0e;
  --border:        rgba(255, 255, 255, 0.06);
  --border-bright: rgba(255, 255, 255, 0.10);

  /* Text */
  --text-primary:   #f5f5f7;
  --text-secondary: #a1a1a6;
  --text-muted:     #6e6e73;
  --text-dim:       #48484a;

  /* Accent */
  --accent:        #2997ff;
  --accent-hover:  #0077ed;
  --accent-glow:   rgba(41, 151, 255, 0.15);

  /* Terminal */
  --t-green:  #32d74b;
  --t-yellow: #ffd60a;
  --t-red:    #ff453a;
  --t-purple: #bf5af2;
  --t-cyan:   #64d2ff;
  --t-orange: #ff9f0a;

  /* Nav */
  --nav-bg: rgba(0, 0, 0, 0.72);
  --nav-bg-scroll: rgba(0, 0, 0, 0.88);

  /* Type */
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:  'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;

  /* Spacing */
  --section-pad: 120px 0;

  /* Transition for theme switch */
  --theme-transition: background 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

/* ─── LIGHT MODE ─── */
[data-theme="light"] {
  --bg:            #ffffff;
  --bg-elevated:   #f5f5f7;
  --bg-card:       #ffffff;
  --bg-terminal:   #1d1d1f;
  --border:        rgba(0, 0, 0, 0.08);
  --border-bright: rgba(0, 0, 0, 0.12);

  --text-primary:   #1d1d1f;
  --text-secondary: #6e6e73;
  --text-muted:     #86868b;
  --text-dim:       #aeaeb2;

  --accent:        #0071e3;
  --accent-hover:  #0077ed;
  --accent-glow:   rgba(0, 113, 227, 0.12);

  --t-green:  #248a3d;
  --t-yellow: #b25000;
  --t-red:    #d70015;
  --t-purple: #8944ab;
  --t-cyan:   #0071a4;
  --t-orange: #c93400;

  --nav-bg: rgba(255, 255, 255, 0.72);
  --nav-bg-scroll: rgba(255, 255, 255, 0.92);
}

/* Light-mode specific overrides */
[data-theme="light"] code {
  background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .hero-glow {
  background: radial-gradient(ellipse at center, rgba(0, 113, 227, 0.08) 0%, transparent 70%);
}

[data-theme="light"] .terminal {
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.06),
    0 20px 60px rgba(0,0,0,0.08),
    0 0 80px rgba(0,113,227,0.03);
}

[data-theme="light"] .terminal:hover {
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.08),
    0 25px 70px rgba(0,0,0,0.12),
    0 0 120px rgba(0,113,227,0.05);
}

[data-theme="light"] .terminal-bar {
  background: rgba(0,0,0,0.04);
}

/* Terminal stays dark in light mode for that hacker vibe */
[data-theme="light"] .terminal,
[data-theme="light"] .terminal-bar,
[data-theme="light"] .terminal-body {
  background: #1d1d1f;
  color: #f5f5f7;
}

[data-theme="light"] .terminal .t-prompt  { color: #32d74b; }
[data-theme="light"] .terminal .t-cmd     { color: #f5f5f7; }
[data-theme="light"] .terminal .t-output  { color: #a1a1a6; }
[data-theme="light"] .terminal .t-success { color: #32d74b; }
[data-theme="light"] .terminal .t-comment { color: #6e6e73; }
[data-theme="light"] .terminal .t-keyword { color: #bf5af2; }
[data-theme="light"] .terminal .t-string  { color: #ff9f0a; }
[data-theme="light"] .terminal-cursor     { background: #f5f5f7; }
[data-theme="light"] .terminal-title      { color: #6e6e73; }

[data-theme="light"] .terminal-dot.red    { background: #ff453a; }
[data-theme="light"] .terminal-dot.yellow { background: #ffd60a; }
[data-theme="light"] .terminal-dot.green  { background: #32d74b; }

[data-theme="light"] .terminal-sm {
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

[data-theme="light"] .problem-card:hover {
  border-color: rgba(215, 0, 21, 0.2);
}

[data-theme="light"] .feature-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

[data-theme="light"] .usage-sidebar {
  background: rgba(0,0,0,0.02);
}

[data-theme="light"] .usage-tab:hover {
  background: rgba(0,0,0,0.04);
}

[data-theme="light"] .usage-tab.active {
  background: rgba(0,113,227,0.08);
}

[data-theme="light"] .btn-ghost {
  border-color: rgba(0,0,0,0.15);
  color: var(--text-primary);
}

[data-theme="light"] .btn-ghost:hover {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.25);
}

[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 8px 30px rgba(0, 113, 227, 0.2);
}

[data-theme="light"] .hero-badge {
  background: rgba(0,0,0,0.04);
}

[data-theme="light"] .options-table td:first-child code {
  color: #248a3d;
  background: rgba(36,138,61,0.08);
}

[data-theme="light"] .icloud-logo {
  color: #1d1d1f;
}

[data-theme="light"] .icloud-arrow {
  color: var(--accent);
}

[data-theme="light"] .particle {
  background: var(--accent);
}

/* ─── BASE ─── */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: var(--theme-transition);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  padding: 3px 8px;
  border-radius: 5px;
  background: rgba(255,255,255,0.06);
  color: var(--t-cyan);
  transition: var(--theme-transition);
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── ANIMATED ICLOUD LOGO ─── */
.icloud-logo {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 32px;
  color: var(--text-primary);
}

.icloud-svg {
  position: relative;
  z-index: 1;
}

.icloud-shape {
  transition: opacity 0.3s;
}

.icloud-arrow {
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--accent);
  animation: arrow-bounce 1.8s ease-in-out infinite;
}

@keyframes arrow-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  40%     { transform: translateX(-50%) translateY(6px); opacity: 1; }
  60%     { transform: translateX(-50%) translateY(6px); opacity: 0; }
  61%     { transform: translateX(-50%) translateY(-4px); opacity: 0; }
  80%     { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.icloud-particles {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 16px;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
}

.particle.p1 {
  left: 2px;
  animation: particle-fall 1.8s 0.2s ease-in infinite;
}

.particle.p2 {
  left: 50%;
  transform: translateX(-50%);
  animation: particle-fall 1.8s 0.4s ease-in infinite;
}

.particle.p3 {
  right: 2px;
  animation: particle-fall 1.8s 0.6s ease-in infinite;
}

@keyframes particle-fall {
  0%, 30% { opacity: 0; transform: translateY(-8px); }
  40%     { opacity: 0.8; transform: translateY(0px); }
  60%     { opacity: 0.6; transform: translateY(8px); }
  80%     { opacity: 0; transform: translateY(14px); }
  100%    { opacity: 0; transform: translateY(14px); }
}

.icloud-logo-sm {
  width: 32px;
  height: 26px;
}

.icloud-logo-sm .icloud-arrow {
  bottom: -1px;
}

/* Logo hover pulse */
.nav-logo:hover .icloud-svg {
  filter: drop-shadow(0 0 6px rgba(41, 151, 255, 0.4));
}

/* ─── THEME TOGGLE ─── */
.theme-toggle {
  all: unset;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.3s ease;
  position: relative;
}

.theme-toggle:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
  transform: rotate(15deg);
}

[data-theme="light"] .theme-toggle {
  background: rgba(0,0,0,0.05);
  border-color: rgba(0,0,0,0.1);
}

[data-theme="light"] .theme-toggle:hover {
  background: rgba(0,0,0,0.08);
}

.theme-icon {
  position: absolute;
  transition: opacity 0.3s, transform 0.3s;
}

/* Dark mode: show sun (to switch to light), hide moon */
.theme-icon.sun {
  opacity: 1;
  transform: rotate(0);
}

.theme-icon.moon {
  opacity: 0;
  transform: rotate(-90deg);
}

/* Light mode: show moon (to switch to dark), hide sun */
[data-theme="light"] .theme-icon.sun {
  opacity: 0;
  transform: rotate(90deg);
}

[data-theme="light"] .theme-icon.moon {
  opacity: 1;
  transform: rotate(0);
}

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, border-color 0.4s;
}

.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-gh {
  opacity: 0.6;
  transition: opacity 0.2s;
}

.nav-gh:hover {
  opacity: 1;
}

/* ─── HERO ─── */
.hero {
  position: relative;
  padding: 180px 24px 100px;
  text-align: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(41,151,255,0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transition: background 0.4s;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 32px;
  letter-spacing: 0.02em;
  transition: var(--theme-transition);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--t-green);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 24px;
}

.hero-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--t-cyan) 50%, var(--t-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .hero-gradient {
  background: linear-gradient(135deg, #0071e3 0%, #0071a4 50%, #8944ab 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(41, 151, 255, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-bright);
  transition: var(--theme-transition);
}

.btn-ghost:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
  background: rgba(255,255,255,0.04);
}

/* ─── TERMINAL ─── */
.terminal {
  background: var(--bg-terminal);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: left;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03),
    0 20px 60px rgba(0,0,0,0.5),
    0 0 80px rgba(41,151,255,0.04);
  transition: box-shadow 0.4s, transform 0.4s;
}

.terminal:hover {
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.06),
    0 25px 70px rgba(0,0,0,0.6),
    0 0 120px rgba(41,151,255,0.06);
  transform: translateY(-2px);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red    { background: #ff453a; }
.terminal-dot.yellow { background: #ffd60a; }
.terminal-dot.green  { background: #32d74b; }

.terminal-title {
  flex: 1;
  text-align: center;
  font-size: 0.78rem;
  color: #6e6e73;
  font-family: var(--font-mono);
  font-weight: 500;
}

.terminal-body {
  padding: 24px 28px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  min-height: 200px;
  position: relative;
}

.terminal-output {
  white-space: pre-wrap;
  word-break: break-all;
}

.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 18px;
  background: #f5f5f7;
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
  margin-left: 2px;
  opacity: 0.8;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Terminal small */
.terminal-sm {
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.terminal-sm .terminal-bar {
  padding: 10px 14px;
}

.terminal-sm .terminal-dot {
  width: 10px;
  height: 10px;
}

.terminal-sm .terminal-body {
  padding: 18px 22px;
  min-height: auto;
  font-size: 0.8rem;
  line-height: 1.75;
}

.terminal-sm pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.75;
}

/* Terminal syntax colors — always dark */
.t-prompt  { color: #32d74b; font-weight: 600; }
.t-cmd     { color: #f5f5f7; }
.t-output  { color: #6e6e73; }
.t-success { color: #32d74b; }
.t-comment { color: #48484a; font-style: italic; }
.t-keyword { color: #bf5af2; }
.t-string  { color: #ff9f0a; }

/* ─── SECTIONS (shared) ─── */
.section {
  padding: var(--section-pad);
  position: relative;
  transition: var(--theme-transition);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 56px;
}

/* ─── PROBLEM ─── */
.problem {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: var(--theme-transition);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.problem-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s, transform 0.3s, background 0.4s;
}

.problem-card:hover {
  border-color: rgba(255, 69, 58, 0.25);
  transform: translateY(-2px);
}

.problem-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.problem-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ─── FEATURES ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s, background 0.4s;
}

.feature-card:hover {
  border-color: var(--accent-glow);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 14px;
}

.feature-card code {
  font-size: 0.75rem;
  padding: 4px 10px;
}

/* ─── INSTALL ─── */
.install {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: var(--theme-transition);
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.install-step {
  display: flex;
  gap: 36px;
  align-items: flex-start;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--text-dim);
  min-width: 80px;
  line-height: 1;
  letter-spacing: -0.04em;
  opacity: 0.5;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.step-content > p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 18px;
  line-height: 1.6;
}

/* ─── USAGE ─── */
.usage-layout {
  display: flex;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 56px;
  transition: var(--theme-transition);
}

.usage-sidebar {
  display: flex;
  flex-direction: column;
  min-width: 180px;
  border-right: 1px solid var(--border);
  padding: 8px;
  background: rgba(255,255,255,0.015);
  transition: var(--theme-transition);
}

.usage-tab {
  all: unset;
  cursor: pointer;
  padding: 12px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  font-family: var(--font-sans);
}

.usage-tab:hover {
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
}

.usage-tab.active {
  color: var(--text-primary);
  background: rgba(41,151,255,0.10);
}

.usage-panel {
  flex: 1;
  padding: 32px;
}

.usage-content {
  display: none;
}

.usage-content.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.usage-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.usage-content > p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 20px;
  line-height: 1.6;
}

.usage-note {
  margin-top: 14px;
  font-size: 0.83rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Options Table */
.options-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  overflow-x: auto;
  transition: var(--theme-transition);
}

.options-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.options-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.options-table th {
  text-align: left;
  padding: 12px 16px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--border);
}

.options-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

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

.options-table td:first-child code {
  color: var(--t-green);
  background: rgba(50,215,75,0.08);
  font-weight: 500;
}

.options-table td:last-child {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* ─── FOOTER ─── */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  transition: var(--theme-transition);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.05rem;
}

.footer-copy {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

/* ─── Scroll Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .usage-layout {
    flex-direction: column;
  }

  .usage-sidebar {
    flex-direction: row;
    overflow-x: auto;
    min-width: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .usage-tab {
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  :root {
    --section-pad: 72px 0;
  }

  .hero {
    padding: 140px 20px 60px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

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

  .install-step {
    flex-direction: column;
    gap: 16px;
  }

  .step-number {
    font-size: 2.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .nav-links a:not(.nav-gh) {
    display: none;
  }

  .nav-links {
    gap: 16px;
  }
}