/* ================================================
   CABIN — Main Stylesheet
   Futuristic / Cyberpunk Dark Theme
   ================================================ */

:root {
  --bg-primary:     #060810;
  --bg-secondary:   #0b0f1a;
  --bg-card:        rgba(12, 18, 35, 0.85);
  --bg-panel:       rgba(8, 14, 28, 0.92);

  --neon-cyan:      #00f5ff;
  --neon-purple:    #b400ff;
  --neon-blue:      #0066ff;
  --neon-green:     #00ff88;
  --neon-orange:    #ff6b00;
  --neon-red:       #ff0044;

  --text-primary:   #e8eaf0;
  --text-secondary: #8a9bb0;
  --text-dim:       #4a5a6a;

  --border-color:   rgba(0, 245, 255, 0.15);
  --border-glow:    rgba(0, 245, 255, 0.4);

  --font-display:   'Orbitron', monospace;
  --font-mono:      'Share Tech Mono', monospace;
  --font-body:      'Inter', sans-serif;

  --radius:         4px;
  --radius-lg:      8px;
  --nav-height:     64px;
}

/* ===== THEMES ===== */
[data-theme="green"] {
  --neon-cyan:    #00ff88;
  --neon-purple:  #00c8a0;
  --border-color: rgba(0, 255, 136, 0.15);
  --border-glow:  rgba(0, 255, 136, 0.4);
}
[data-theme="red"] {
  --neon-cyan:    #ff0044;
  --neon-purple:  #ff6b00;
  --border-color: rgba(255, 0, 68, 0.15);
  --border-glow:  rgba(255, 0, 68, 0.4);
}
[data-theme="blue"] {
  --neon-cyan:    #0088ff;
  --neon-purple:  #00ccff;
  --border-color: rgba(0, 136, 255, 0.15);
  --border-glow:  rgba(0, 136, 255, 0.4);
}
[data-theme="vapor"] {
  --neon-cyan:    #ff6ec7;
  --neon-purple:  #ffe600;
  --neon-green:   #a8ff3e;
  --border-color: rgba(255, 110, 199, 0.2);
  --border-glow:  rgba(255, 110, 199, 0.5);
}
[data-theme="white"] {
  --neon-cyan:    #ffffff;
  --neon-purple:  #d0d8e8;
  --neon-green:   #aaffcc;
  --neon-orange:  #ffd080;
  --neon-red:     #ff8080;
  --neon-blue:    #80b0ff;
  --border-color: rgba(255, 255, 255, 0.18);
  --border-glow:  rgba(255, 255, 255, 0.45);
  --text-primary: #ffffff;
  --text-secondary: #b0bcd0;
}

/* ===== THEME SELECTOR (Account tab) ===== */
.theme-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-top: 0.5rem;
}
.theme-btn {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: rgba(255,255,255,0.03); border: 1px solid var(--border-color);
  border-radius: var(--radius); padding: 0.6rem 0.4rem; cursor: pointer;
  color: var(--text-secondary); font-family: var(--font-mono); font-size: 0.65rem;
  transition: border-color 0.2s, background 0.2s;
}
.theme-btn:hover  { border-color: var(--neon-cyan); background: rgba(0,245,255,0.04); }
.theme-btn.active { border-color: var(--neon-cyan); background: rgba(0,245,255,0.08); color: var(--neon-cyan); }
.theme-label { font-size: 0.7rem; font-weight: bold; color: inherit; }
.theme-desc  { font-size: 0.6rem; color: var(--text-dim); text-align: center; }
.theme-swatch {
  width: 28px; height: 28px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.1);
}
.theme-swatch-cyber { background: linear-gradient(135deg, #00f5ff, #b400ff); }
.theme-swatch-green { background: linear-gradient(135deg, #00ff88, #00c8a0); }
.theme-swatch-red   { background: linear-gradient(135deg, #ff0044, #ff6b00); }
.theme-swatch-blue  { background: linear-gradient(135deg, #0088ff, #00ccff); }
.theme-swatch-vapor { background: linear-gradient(135deg, #ff6ec7, #ffe600); }
.theme-swatch-white { background: linear-gradient(135deg, #ffffff, #d0d8e8); }

/* ===== SAVED BUILDS ===== */
.saves-empty {
  text-align: center; padding: 2rem 1rem;
  color: var(--text-secondary); font-family: var(--font-mono); font-size: 0.75rem;
}
.save-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 0.85rem 1rem;
  margin-bottom: 0.6rem; transition: border-color 0.2s;
}
.save-card:hover { border-color: var(--border-glow); }
.save-card-header {
  display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: 0.5rem;
}
.save-card-title {
  font-family: var(--font-display); font-size: 0.75rem;
  color: var(--text-primary); font-weight: 700; letter-spacing: 1px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.save-card-meta {
  display: flex; align-items: center; gap: 0.35rem;
  flex-wrap: wrap; margin-top: 0.25rem;
  font-family: var(--font-mono); font-size: 0.6rem; color: var(--text-dim);
}
.save-card-specs { display: flex; flex-direction: column; gap: 2px; }
.save-spec-line {
  display: flex; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.65rem;
}
.save-spec-key { color: var(--neon-cyan); min-width: 48px; flex-shrink: 0; }
.save-spec-val { color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.btn-danger-ghost {
  background: transparent; border: 1px solid rgba(255,0,68,0.3);
  color: var(--neon-red); border-radius: var(--radius);
  font-size: 0.7rem; padding: 0.15rem 0.4rem; cursor: pointer;
  line-height: 1; transition: background 0.2s, border-color 0.2s;
  flex-shrink: 0;
}
.btn-danger-ghost:hover { background: rgba(255,0,68,0.1); border-color: var(--neon-red); }

/* Account sub-tabs */
.acc-subtabs {
  display: flex; gap: 0.4rem; flex-wrap: wrap;
  margin-bottom: 1.25rem; border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}
.acc-subtab-btn {
  background: transparent; border: 1px solid var(--border-color);
  color: var(--text-secondary); font-family: var(--font-display);
  font-size: 0.6rem; font-weight: 700; letter-spacing: 1.5px;
  padding: 0.35rem 0.8rem; border-radius: var(--radius); cursor: pointer;
  transition: all 0.2s;
}
.acc-subtab-btn:hover  { color: var(--neon-cyan); border-color: var(--neon-cyan); }
.acc-subtab-btn.active { color: var(--neon-cyan); border-color: var(--neon-cyan); background: rgba(0,245,255,0.06); }

/* ===== STORES LOADING ===== */
.stores-loading {
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--text-secondary); font-family: var(--font-mono); font-size: 0.75rem;
  padding: 0.75rem 0;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== PARTICLE CANVAS ===== */
#particle-canvas {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0; pointer-events: none; opacity: 0.4;
}

/* ===== SCANLINES ===== */
.scanlines {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.08) 2px, rgba(0,0,0,0.08) 4px);
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  background: rgba(6, 8, 16, 0.96);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  z-index: 100;
  gap: 1rem;
}

.nav-logo {
  display: flex; align-items: baseline; gap: 2px;
  font-family: var(--font-display);
  flex-shrink: 0;
}
.logo-bracket { color: var(--neon-cyan); font-size: 1.4rem; }
.logo-text    { color: var(--text-primary); font-size: 1.2rem; font-weight: 900; letter-spacing: 4px; }
.logo-sub     { color: var(--text-dim); font-size: 0.65rem; margin-left: 4px; font-family: var(--font-mono); }

.nav-links {
  display: flex; list-style: none; gap: 0.1rem;
  flex: 1; justify-content: center;
}
.nav-link {
  display: block; padding: 0.4rem 0.7rem;
  color: var(--text-secondary); text-decoration: none;
  font-family: var(--font-display); font-size: 0.6rem;
  font-weight: 700; letter-spacing: 2px;
  border: 1px solid transparent; border-radius: var(--radius);
  transition: all 0.2s ease; white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--neon-cyan); border-color: var(--border-color);
  background: rgba(0,245,255,0.05); text-shadow: 0 0 8px var(--neon-cyan);
}

/* Right side of nav */
.nav-right {
  display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0;
}
.nav-status {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--neon-green);
}
.status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--neon-green);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* User in navbar */
.nav-user {
  display: flex; align-items: center; gap: 0.5rem;
  cursor: pointer; padding: 0.25rem 0.5rem;
  border: 1px solid var(--border-color); border-radius: var(--radius);
  transition: border-color 0.2s;
}
.nav-user:hover { border-color: var(--neon-cyan); }
.nav-avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 0.65rem;
  font-weight: 900; color: var(--bg-primary);
  flex-shrink: 0;
}
.nav-username {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--text-primary); max-width: 80px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* Hamburger */
.hamburger-btn {
  display: none; flex-direction: column; justify-content: center;
  gap: 5px; background: transparent; border: none; cursor: pointer;
  padding: 6px; width: 36px; height: 36px;
}
.hamburger-btn span {
  display: block; width: 22px; height: 2px;
  background: var(--text-secondary); border-radius: 2px;
  transition: all 0.25s ease; transform-origin: center;
}
.hamburger-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== MOBILE NAV ===== */
.mobile-nav-overlay {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
}
.mobile-nav {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(320px, 85vw); z-index: 151;
  background: rgba(6, 10, 20, 0.98);
  border-left: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  padding: 0 0 1.5rem;
  animation: slide-in-right 0.25s ease;
}
.mobile-nav-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.25rem; border-bottom: 1px solid var(--border-color);
  height: var(--nav-height);
}
.mobile-nav-close {
  background: transparent; border: 1px solid var(--border-color);
  color: var(--text-secondary); font-size: 1rem;
  padding: 0.3rem 0.6rem; border-radius: var(--radius); cursor: pointer;
  transition: all 0.2s;
}
.mobile-nav-close:hover { color: var(--neon-cyan); border-color: var(--neon-cyan); }
.mobile-nav-links {
  list-style: none; padding: 1rem 0; flex: 1;
}
.mobile-nav-link {
  display: block; padding: 0.85rem 1.5rem;
  color: var(--text-secondary); text-decoration: none;
  font-family: var(--font-display); font-size: 0.75rem;
  font-weight: 700; letter-spacing: 3px;
  border-left: 2px solid transparent;
  transition: all 0.2s;
}
.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--neon-cyan); border-left-color: var(--neon-cyan);
  background: rgba(0,245,255,0.04);
}
.mobile-nav-footer {
  padding: 0 1.25rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

/* ===== MAIN CONTENT ===== */
.main-content {
  position: relative; z-index: 10;
  padding: calc(var(--nav-height) + 2rem) 2rem 2rem;
  max-width: 1280px; margin: 0 auto;
}

/* ===== TABS ===== */
.tab-section { display: none; }
.tab-section.active { display: block; animation: fade-in 0.3s ease; }

/* ===== SECTION TITLES ===== */
.section-title {
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--neon-cyan); letter-spacing: 3px;
  margin: 2.5rem 0 1.25rem;
  padding-bottom: 0.5rem; border-bottom: 1px solid var(--border-color);
}
.section-mini-title {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--neon-purple); letter-spacing: 2px; margin-bottom: 0.75rem;
}

/* ===== HERO ===== */
.hero {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 3rem; align-items: center;
  min-height: calc(100vh - var(--nav-height) - 4rem);
  padding: 2rem 0;
}
.hero-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--neon-cyan); letter-spacing: 3px; margin-bottom: 1rem; }
.hero-title {
  font-family: var(--font-display); font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 900; line-height: 1.05; letter-spacing: 2px; margin-bottom: 1.5rem;
}
.neon-text { color: var(--neon-cyan); text-shadow: 0 0 20px var(--neon-cyan), 0 0 40px rgba(0,245,255,0.3); }
.hero-desc { color: var(--text-secondary); font-size: 0.95rem; max-width: 480px; margin-bottom: 2rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-visual { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
#hero-pc-canvas { max-width: 100%; height: auto; }
.hero-specs-preview {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius); padding: 0.75rem 1rem;
  width: 100%; max-width: 380px;
}
.spec-line { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 0.7rem; padding: 0.2rem 0; border-bottom: 1px solid rgba(0,245,255,0.06); }
.spec-key  { color: var(--neon-cyan); }
.spec-val  { color: var(--text-secondary); }

/* ===== FEATURES GRID ===== */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem; margin-bottom: 2rem;
}
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: var(--border-glow); transform: translateY(-2px); }
.feature-icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.feature-card h3 { font-family: var(--font-display); font-size: 0.75rem; font-weight: 700; color: var(--text-primary); letter-spacing: 1px; margin-bottom: 0.5rem; }
.feature-card p  { color: var(--text-secondary); font-size: 0.83rem; }

/* ===== QUICKSTART BAR ===== */
.quickstart-bar { display: flex; gap: 0.75rem; margin-bottom: 3rem; flex-wrap: wrap; }
.qs-input { flex: 1; min-width: 200px; }

/* ===== LAYOUTS ===== */
.build-layout, .upgrade-layout, .benchmark-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.5rem; align-items: start;
}
.panel, .build-input-panel, .build-result-panel {
  background: var(--bg-panel); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.5rem;
}
.panel-header {
  font-family: var(--font-display); font-size: 0.7rem; font-weight: 700;
  color: var(--neon-cyan); letter-spacing: 3px;
  margin-bottom: 1.25rem; padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

/* ===== RESULT PLACEHOLDER ===== */
.result-placeholder {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  min-height: 200px; color: var(--text-secondary); gap: 0.75rem;
  text-align: center;
}
.result-placeholder p { font-size: 0.85rem; max-width: 240px; }
.placeholder-icon { font-family: var(--font-display); font-size: 2rem; color: var(--text-dim); }

/* ===== SPECS TABLE ===== */
.specs-table { display: grid; gap: 0.5rem; }
.spec-row {
  display: grid; grid-template-columns: 80px 1fr auto auto;
  align-items: center; gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: rgba(0,245,255,0.03); border: 1px solid rgba(0,245,255,0.08);
  border-radius: var(--radius);
}
.store-buy-btn {
  background: transparent; border: 1px solid var(--neon-purple);
  color: var(--neon-purple); font-family: var(--font-mono); font-size: 0.6rem;
  padding: 0.3rem 0.6rem; border-radius: var(--radius); cursor: pointer;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.store-buy-btn:hover { background: var(--neon-purple); color: #000; }
.spec-row-key   { font-family: var(--font-mono); font-size: 0.65rem; color: var(--neon-cyan); letter-spacing: 1px; }
.spec-row-val   { font-size: 0.8rem; color: var(--text-primary); }
.spec-row-price { font-family: var(--font-mono); font-size: 0.75rem; color: var(--neon-green); }

/* ===== PERFORMANCE GRID ===== */
.perf-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
.perf-card { background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 0.75rem; text-align: center; }
.perf-label { font-family: var(--font-mono); font-size: 0.6rem; color: var(--text-secondary); letter-spacing: 2px; margin-bottom: 0.4rem; }
.perf-value { font-family: var(--font-display); font-size: 1.4rem; font-weight: 900; color: var(--neon-cyan); text-shadow: 0 0 10px var(--neon-cyan); }
.perf-unit  { font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-secondary); margin-left: 2px; }
.perf-bar-wrap { margin-top: 0.4rem; height: 3px; background: rgba(255,255,255,0.06); border-radius: 2px; overflow: hidden; }
.perf-bar { height: 100%; background: linear-gradient(90deg, var(--neon-blue), var(--neon-cyan)); border-radius: 2px; transition: width 1s ease; }

/* ===== ANALYSIS TEXT ===== */
.analysis-text {
  font-family: var(--font-body); font-size: 0.85rem; color: var(--text-secondary);
  line-height: 1.7; background: rgba(0,0,0,0.2);
  border: 1px solid var(--border-color); border-radius: var(--radius); padding: 1rem;
}

/* ===== STORES LIST (in build result) ===== */
.stores-list { display: grid; gap: 0.6rem; }
.store-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 0.75rem; background: rgba(0,0,0,0.2);
  border: 1px solid var(--border-color); border-radius: var(--radius);
  flex-wrap: wrap; gap: 0.5rem;
}
.store-name   { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-primary); }
.store-region { font-size: 0.7rem; color: var(--text-secondary); }
.store-link {
  font-family: var(--font-mono); font-size: 0.65rem; color: var(--neon-cyan);
  text-decoration: none; border: 1px solid var(--border-color);
  padding: 0.2rem 0.5rem; border-radius: var(--radius); transition: all 0.2s;
  white-space: nowrap;
}
.store-link:hover { background: rgba(0,245,255,0.1); border-color: var(--neon-cyan); }
.store-link-purple {
  color: var(--neon-purple); border-color: rgba(180,0,255,0.3);
}
.store-link-purple:hover { background: rgba(180,0,255,0.1); border-color: var(--neon-purple); }

/* ===== STORES TAB ===== */
.stores-layout      { display: flex; flex-direction: column; gap: 1rem; }
.stores-search-bar  { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.stores-search-bar .cyber-input { flex: 1; min-width: 160px; }
.stores-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1rem;
}
.stores-section-header { grid-column: 1 / -1; margin-top: 0.5rem; }

/* Store card */
.store-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.25rem;
  transition: border-color 0.2s, transform 0.2s;
}
.store-card:hover { border-color: var(--border-glow); transform: translateY(-2px); }
.store-nearby { border-color: rgba(0,255,136,0.2); }
.store-nearby:hover { border-color: var(--neon-green); }
.store-card-name { font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; color: var(--neon-cyan); letter-spacing: 1px; margin-bottom: 0.4rem; }
.store-card-info { font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.store-card-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.store-tag { font-family: var(--font-mono); font-size: 0.6rem; color: var(--neon-purple); border: 1px solid rgba(180,0,255,0.3); padding: 0.15rem 0.4rem; border-radius: var(--radius); }
.store-card-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem; }
.store-distance-badge {
  display: inline-block; font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--neon-green); border: 1px solid rgba(0,255,136,0.3);
  background: rgba(0,255,136,0.07); padding: 0.15rem 0.5rem;
  border-radius: var(--radius); margin-bottom: 0.4rem;
}
.stores-loading {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 2rem; color: var(--text-secondary);
  font-family: var(--font-mono); font-size: 0.75rem;
}

/* Google Maps search button */
.maps-search-btn {
  display: flex; align-items: center; gap: 0.6rem;
  width: 100%; padding: 0.85rem 1.25rem;
  background: rgba(0,102,255,0.08); border: 1px solid rgba(0,102,255,0.3);
  border-radius: var(--radius-lg); color: var(--neon-blue);
  font-family: var(--font-mono); font-size: 0.8rem;
  text-decoration: none; transition: all 0.2s;
}
.maps-search-btn:hover { background: rgba(0,102,255,0.15); border-color: var(--neon-blue); transform: translateY(-1px); }

/* ===== ABOUT ===== */
.about-layout  { display: flex; flex-direction: column; gap: 2rem; }
.about-hero    { text-align: center; padding: 2rem 0; }
.about-logo    { display: flex; align-items: center; justify-content: center; gap: 4px; font-family: var(--font-display); margin-bottom: 0.5rem; }
.about-tagline { color: var(--text-secondary); font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 3px; }
.about-grid    { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; }
.about-card    { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.5rem; }
.about-card h3 { font-family: var(--font-display); font-size: 0.8rem; color: var(--neon-cyan); letter-spacing: 1px; margin-bottom: 0.75rem; }
.about-card p  { color: var(--text-secondary); font-size: 0.85rem; }
.tech-stack-section { margin-top: 0.5rem; }
.tech-tags     { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; }
.tech-tag      { font-family: var(--font-mono); font-size: 0.7rem; color: var(--neon-cyan); border: 1px solid var(--border-color); padding: 0.3rem 0.7rem; border-radius: var(--radius); background: rgba(0,245,255,0.04); }

/* ===== ACCOUNT TAB ===== */
.account-guest { text-align: center; max-width: 480px; margin: 3rem auto; }
.account-guest-icon  { font-family: var(--font-display); font-size: 3rem; color: var(--text-dim); margin-bottom: 1rem; }
.account-guest-title { font-family: var(--font-display); font-size: 1.2rem; color: var(--text-primary); letter-spacing: 2px; margin-bottom: 0.75rem; }
.account-guest-desc  { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 2rem; line-height: 1.7; }
.account-profile {
  display: flex; align-items: center; gap: 1.5rem;
  background: var(--bg-panel); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.5rem; margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.account-avatar-lg {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 900;
  color: var(--bg-primary); flex-shrink: 0;
}
.account-username { font-family: var(--font-display); font-size: 1.2rem; color: var(--text-primary); letter-spacing: 2px; margin-bottom: 0.3rem; }
.account-email    { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.25rem; }
.account-joined   { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-dim); }
.account-grid     { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.account-card     { background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.5rem; }
.account-card-title { font-family: var(--font-mono); font-size: 0.65rem; color: var(--neon-cyan); letter-spacing: 2px; margin-bottom: 0.75rem; }

/* ===== MODALS ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.8); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.modal-box {
  position: relative; width: 100%; max-width: 420px;
  background: rgba(8, 14, 30, 0.98);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg); padding: 2rem 1.75rem;
  box-shadow: 0 0 40px rgba(0,245,255,0.1);
  max-height: 90vh; overflow-y: auto;
  animation: fade-in 0.25s ease;
}
.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: transparent; border: 1px solid var(--border-color);
  color: var(--text-secondary); font-size: 0.9rem;
  padding: 0.25rem 0.5rem; border-radius: var(--radius); cursor: pointer;
  transition: all 0.2s;
}
.modal-close:hover { color: var(--neon-cyan); border-color: var(--neon-cyan); }
.modal-logo {
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 900;
  color: var(--neon-cyan); letter-spacing: 4px; text-align: center;
  text-shadow: 0 0 20px var(--neon-cyan); margin-bottom: 0.4rem;
}
.modal-subtitle { font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-secondary); text-align: center; letter-spacing: 1px; margin-bottom: 1.5rem; }

/* Auth tabs */
.auth-tabs { display: flex; border: 1px solid var(--border-color); border-radius: var(--radius); overflow: hidden; margin-bottom: 1.25rem; }
.auth-tab-btn {
  flex: 1; padding: 0.6rem; background: transparent;
  border: none; color: var(--text-secondary); cursor: pointer;
  font-family: var(--font-display); font-size: 0.65rem; font-weight: 700; letter-spacing: 2px;
  transition: all 0.2s;
}
.auth-tab-btn.active { background: rgba(0,245,255,0.1); color: var(--neon-cyan); }

/* Auth error */
.auth-error {
  min-height: 1.2rem; font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--neon-red); text-align: center; margin-bottom: 0.75rem;
}

/* Auth divider */
.auth-divider {
  display: flex; align-items: center; gap: 0.75rem;
  margin: 1rem 0; color: var(--text-dim); font-size: 0.7rem;
}
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }

/* OAuth buttons */
.btn-oauth {
  width: 100%; padding: 0.65rem 1rem; font-size: 0.8rem;
  font-family: var(--font-body); font-weight: 500; letter-spacing: 0;
  display: flex; align-items: center; justify-content: center; gap: 0.75rem;
  border-radius: var(--radius);
}
.btn-google { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.15); color: var(--text-primary); margin-bottom: 0.5rem; }
.btn-google:hover { background: rgba(255,255,255,0.08); }
.btn-github { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.15); color: var(--text-primary); }
.btn-github:hover { background: rgba(255,255,255,0.08); }

/* ===== FOOTER ===== */
.footer { position: relative; z-index: 10; border-top: 1px solid var(--border-color); margin-top: 4rem; }
.footer-inner { max-width: 1280px; margin: 0 auto; padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.footer-logo  { font-family: var(--font-display); font-size: 0.8rem; color: var(--neon-cyan); letter-spacing: 2px; }
.footer-copy  { font-family: var(--font-mono); font-size: 0.65rem; color: var(--text-dim); }
.footer-status { display: flex; align-items: center; gap: 5px; font-family: var(--font-mono); font-size: 0.65rem; color: var(--neon-green); }

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 1000;
  background: var(--bg-card); border: 1px solid var(--border-glow);
  border-radius: var(--radius); padding: 0.75rem 1.25rem;
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--neon-cyan);
  box-shadow: 0 0 20px rgba(0,245,255,0.2);
  animation: slide-in-right 0.3s ease;
  max-width: calc(100vw - 3rem);
}

/* ===== LOADING OVERLAY ===== */
.loading-overlay { position: fixed; inset: 0; z-index: 999; background: rgba(6,8,16,0.95); display: flex; align-items: center; justify-content: center; }
.loading-inner   { display: flex; flex-direction: column; align-items: center; gap: 1.25rem; min-width: 280px; width: 90%; max-width: 360px; }
.loading-logo    { font-family: var(--font-display); font-size: 2rem; font-weight: 900; color: var(--neon-cyan); letter-spacing: 6px; text-shadow: 0 0 20px var(--neon-cyan); }
.loading-bar     { width: 100%; height: 2px; background: var(--border-color); border-radius: 1px; overflow: hidden; }
.loading-progress { height: 100%; background: linear-gradient(90deg, var(--neon-purple), var(--neon-cyan)); border-radius: 1px; transition: width 0.3s ease; }
.loading-text    { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-secondary); letter-spacing: 2px; text-align: center; }

/* ===== MISC ===== */
.result-section { margin-bottom: 1.5rem; }
.result-section:last-child { margin-bottom: 0; }
.build-result canvas { max-width: 100%; border: 1px solid var(--border-color); border-radius: var(--radius); }
.location-row { display: flex; gap: 0.5rem; }
.location-row .cyber-input { flex: 1; }
.benchmark-fps-display { text-align: center; padding: 2rem; }
.fps-number { font-family: var(--font-display); font-size: 4rem; font-weight: 900; line-height: 1; }
.fps-number.excellent { color: var(--neon-green);  text-shadow: 0 0 20px var(--neon-green); }
.fps-number.good      { color: var(--neon-cyan);   text-shadow: 0 0 20px var(--neon-cyan); }
.fps-number.ok        { color: var(--neon-orange); text-shadow: 0 0 20px var(--neon-orange); }
.fps-number.poor      { color: var(--neon-red);    text-shadow: 0 0 20px var(--neon-red); }
.fps-label { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-secondary); letter-spacing: 3px; margin-top: 0.5rem; }
.freeze-badge { display: inline-block; margin-top: 1rem; font-family: var(--font-mono); font-size: 0.7rem; padding: 0.3rem 0.8rem; border-radius: var(--radius); letter-spacing: 2px; }
.freeze-badge.none { background: rgba(0,255,136,0.1); color: var(--neon-green); border: 1px solid var(--neon-green); }
.freeze-badge.low  { background: rgba(0,245,255,0.1); color: var(--neon-cyan);  border: 1px solid var(--neon-cyan); }
.freeze-badge.med  { background: rgba(255,107,0,0.1); color: var(--neon-orange);border: 1px solid var(--neon-orange); }
.freeze-badge.high { background: rgba(255,0,68,0.1);  color: var(--neon-red);   border: 1px solid var(--neon-red); }
.hidden { display: none !important; }

/* ===== RESPONSIVE — TABLET ===== */
@media (max-width: 1024px) {
  .nav-links { gap: 0; }
  .nav-link { padding: 0.4rem 0.5rem; font-size: 0.58rem; }
  .nav-status .status-text { display: none; }
}

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
  :root { --nav-height: 56px; }

  .navbar { padding: 0 1rem; }
  .nav-links { display: none; }
  .hamburger-btn { display: flex; }
  .nav-status { display: none; }
  .nav-username { display: none; }

  .main-content { padding: calc(var(--nav-height) + 1.25rem) 1rem 1.5rem; }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto; gap: 2rem; padding: 1rem 0;
  }
  .hero-visual { order: -1; }
  .hero-title { font-size: clamp(1.8rem, 7vw, 2.5rem); }
  #hero-pc-canvas { width: 100%; max-width: 300px; height: auto; }

  .build-layout, .upgrade-layout, .benchmark-layout {
    grid-template-columns: 1fr;
  }
  .perf-grid { grid-template-columns: 1fr 1fr; }

  .quickstart-bar { flex-direction: column; }
  .quickstart-bar .cyber-input { width: 100%; }

  .stores-search-bar .cyber-input { min-width: 100%; }
  .stores-search-bar { gap: 0.5rem; }
  .stores-search-bar .btn { flex: 1; }

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

  .toast { bottom: 1rem; right: 1rem; left: 1rem; }

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

  .footer-inner { justify-content: center; text-align: center; flex-direction: column; gap: 0.25rem; }

  .spec-row { grid-template-columns: 60px 1fr auto auto; }

  .about-grid { grid-template-columns: 1fr; }
  .account-grid { grid-template-columns: 1fr; }
  .account-profile { flex-direction: column; text-align: center; }

  .modal-box { padding: 1.5rem 1.25rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.6rem; }
  .perf-grid { grid-template-columns: 1fr; }
  .hero-specs-preview { display: none; }
}