/* ===========================
   CSS Variables
=========================== */
:root {
    --primary: #FF4B00;
    --primary-dark: #CC3A00;
    --primary-light: #FFF0EB;
    --secondary: #1A1A2E;
    --text: #2D2D2D;
    --text-light: #666;
    --text-muted: #999;
    --bg: #fff;
    --bg-gray: #F8F9FA;
    --bg-dark: #1A1A2E;
    --border: #E0E0E0;
    --border-light: #F0F0F0;
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    --font: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 2px 8px rgba(0,0,0,.08);
    --shadow-lg: 0 4px 20px rgba(0,0,0,.12);
    --max-content: 800px;
    --max-wide: 1200px;
    --sp: 8px;
}

/* ===========================
   Reset
=========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ===========================
   Layout
=========================== */
.container {
    max-width: var(--max-wide);
    margin: 0 auto;
    padding: 0 16px;
}

/* ===========================
   Header
=========================== */
.site-header {
    background: var(--bg);
    border-bottom: 2px solid var(--primary);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 60px;
}
.site-logo {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 20px;
    color: var(--secondary);
    white-space: nowrap;
    flex-shrink: 0;
}
.logo-icon { font-size: 22px; color: var(--primary); }
.logo-accent { color: var(--primary); }
.header-search { flex: 1; max-width: 380px; position: relative; }
.search-form { position: relative; }
.search-input {
    width: 100%;
    padding: 8px 40px 8px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 14px;
    outline: none;
    transition: border-color .2s;
}
.search-input:focus { border-color: var(--primary); }
.search-btn {
    position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
    color: var(--text-light); padding: 4px;
}
.search-btn:hover { color: var(--primary); }
.search-dropdown {
    position: absolute; top: calc(100% + 4px); left: 0; right: 0;
    background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow-lg); z-index: 50; max-height: 320px; overflow-y: auto;
}
.search-result-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px; border-bottom: 1px solid var(--border-light); cursor: pointer;
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--bg-gray); }
.search-result-code { font-family: var(--font-mono); font-weight: 700; color: var(--primary); min-width: 48px; }
.search-result-meta { font-size: 13px; color: var(--text-light); }
.search-result-desc { font-size: 13px; color: var(--text); flex: 1; }
.header-nav { display: flex; gap: 4px; margin-left: auto; }
.nav-link { padding: 6px 10px; font-size: 14px; color: var(--text); border-radius: var(--radius); transition: background .15s; }
.nav-link:hover { background: var(--bg-gray); color: var(--primary); }

/* ===========================
   Breadcrumb
=========================== */
.breadcrumb { padding: 14px 0; }
.breadcrumb-list { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; font-size: 13px; color: var(--text-light); }
.breadcrumb-item::after { content: '›'; margin-left: 4px; color: var(--border); }
.breadcrumb-item:last-child::after { display: none; }
.breadcrumb-item a { color: var(--text-light); }
.breadcrumb-item a:hover { color: var(--primary); }
.breadcrumb-current { color: var(--text); font-weight: 500; }

/* ===========================
   Buttons
=========================== */
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--primary); color: #fff;
    padding: 12px 24px; border-radius: var(--radius);
    font-weight: 600; font-size: 16px;
    transition: background .15s, transform .1s;
    text-decoration: none;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); }
.btn-primary:active { transform: none; }
.btn-block { width: 100%; text-align: center; }
.btn-secondary {
    display: inline-flex; align-items: center;
    color: var(--text); border: 1px solid var(--border);
    padding: 10px 20px; border-radius: var(--radius);
    font-size: 15px; transition: border-color .15s;
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

/* ===========================
   Hero (front-page)
=========================== */
.hero {
    background: linear-gradient(135deg, var(--secondary) 0%, #2A2A5A 100%);
    color: #fff;
    padding: 56px 0 48px;
}
.hero-title { font-size: clamp(28px, 5vw, 48px); font-weight: 700; line-height: 1.2; margin-bottom: 12px; }
.hero-accent { color: var(--primary); }
.hero-subtitle { font-size: 18px; color: rgba(255,255,255,.8); margin-bottom: 32px; }
.hero-search {
    background: #fff; border-radius: var(--radius-lg); padding: 20px;
    box-shadow: var(--shadow-lg);
}
.hero-search-fields { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.hero-search-field label { display: block; font-size: 12px; font-weight: 600; color: var(--text-light); margin-bottom: 4px; text-transform: uppercase; letter-spacing: .5px; }
.hero-input, .hero-select {
    width: 100%; padding: 10px 14px;
    border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 15px; font-family: inherit; color: var(--text);
    outline: none; transition: border-color .2s;
}
.hero-input:focus, .hero-select:focus { border-color: var(--primary); }
.hero-btn {
    width: 100%; background: var(--primary); color: #fff;
    padding: 14px; border-radius: var(--radius);
    font-size: 17px; font-weight: 700;
    transition: background .15s;
}
.hero-btn:hover { background: var(--primary-dark); }
.hero-search-results { margin-top: 12px; }

/* ===========================
   Verticals grid
=========================== */
.verticals { padding: 48px 0; }
.verticals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px; margin-top: 24px;
}
.vertical-card {
    display: flex; flex-direction: column; align-items: center;
    padding: 24px 16px; background: var(--bg-gray);
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    text-align: center; transition: border-color .15s, box-shadow .15s, transform .15s;
    color: var(--text);
}
.vertical-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); color: var(--text); }
.vertical-icon { font-size: 32px; margin-bottom: 10px; }
.vertical-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.vertical-hint { font-size: 12px; color: var(--text-light); }

/* ===========================
   Stats
=========================== */
.stats { background: var(--secondary); color: #fff; padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-number { font-size: clamp(24px, 4vw, 36px); font-weight: 700; color: var(--primary); }
.stat-label { font-size: 14px; color: rgba(255,255,255,.7); margin-top: 4px; }

/* ===========================
   How it works
=========================== */
.how-it-works { padding: 48px 0; background: var(--bg-gray); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 24px; }
.step-item { text-align: center; }
.step-num {
    width: 48px; height: 48px; background: var(--primary); color: #fff;
    border-radius: 50%; font-size: 22px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; margin: 0 auto 16px;
}
.step-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.step-desc { font-size: 14px; color: var(--text-light); }

/* ===========================
   Section titles
=========================== */
.section-title { font-size: 22px; font-weight: 700; color: var(--secondary); margin-bottom: 20px; }

/* ===========================
   Popular cards
=========================== */
.popular-section { padding: 40px 0; }
.popular-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.popular-card {
    display: flex; flex-direction: column; gap: 4px;
    padding: 14px 16px;
    border: 1px solid var(--border); border-radius: var(--radius);
    transition: border-color .15s, box-shadow .15s;
    color: var(--text);
}
.popular-card:hover { border-color: var(--primary); box-shadow: var(--shadow); color: var(--text); }
.popular-code { font-family: var(--font-mono); font-weight: 700; color: var(--primary); font-size: 18px; }
.popular-brand { font-size: 12px; color: var(--text-light); }
.popular-desc { font-size: 13px; color: var(--text); }

/* ===========================
   Error page layout
=========================== */
.main-content { padding-bottom: 48px; }
.error-layout { display: grid; grid-template-columns: 1fr 280px; gap: 32px; align-items: start; }
.error-content { min-width: 0; }
.error-sidebar { position: sticky; top: 76px; }

/* ===========================
   Error header
=========================== */
.error-header { margin-bottom: 28px; }
.error-h1 { font-size: clamp(22px, 3vw, 32px); font-weight: 700; color: var(--secondary); line-height: 1.3; margin-bottom: 12px; }
.error-code-badge {
    display: inline-block;
    font-family: var(--font-mono); font-size: 1em; font-weight: 900;
    background: var(--primary); color: #fff;
    padding: 2px 10px; border-radius: 6px; margin-right: 2px;
    vertical-align: baseline;
}
.error-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ===========================
   Severity badges
=========================== */
.severity-badge {
    display: inline-flex; align-items: center;
    padding: 4px 10px; border-radius: 20px;
    font-size: 12px; font-weight: 600;
}
.severity-low      { background: #E8F5E9; color: #2E7D32; }
.severity-medium   { background: #FFF8E1; color: #F57F17; }
.severity-high     { background: #FBE9E7; color: #BF360C; }
.severity-critical { background: #FFEBEE; color: #B71C1C; }
.cost-badge { font-size: 13px; color: var(--text-light); background: var(--bg-gray); padding: 4px 10px; border-radius: 20px; }

/* ===========================
   Quick answer
=========================== */
.quick-answer {
    display: flex; gap: 14px; align-items: flex-start;
    background: var(--primary-light); border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 18px; margin-bottom: 32px;
}
.quick-answer-icon { font-size: 28px; flex-shrink: 0; }
.quick-answer-title { font-weight: 700; font-size: 15px; margin-bottom: 4px; color: var(--primary); }
.quick-answer-text { font-size: 16px; color: var(--text); line-height: 1.5; }

/* ===========================
   Causes
=========================== */
.causes-section { margin-bottom: 36px; }
.causes-list { display: flex; flex-direction: column; gap: 12px; }
.cause-item { display: flex; gap: 14px; align-items: flex-start; }
.cause-rank {
    flex-shrink: 0; width: 28px; height: 28px;
    background: var(--secondary); color: #fff;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700;
}
.cause-body { flex: 1; }
.cause-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.cause-text { font-size: 15px; font-weight: 500; }
.cause-prob { font-size: 13px; color: var(--text-light); font-weight: 600; }
.cause-bar { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.cause-bar-fill { height: 100%; background: var(--primary); border-radius: 3px; transition: width .4s ease; }

/* ===========================
   DIY steps
=========================== */
.diy-section { margin-bottom: 36px; }
.diy-intro { font-size: 15px; color: var(--text-light); margin-bottom: 16px; }
.diy-steps { display: flex; flex-direction: column; gap: 12px; }
.diy-step { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color .15s; }
.diy-step.is-done { border-color: var(--success); background: #f8fff8; }
.diy-step-label { display: flex; align-items: flex-start; gap: 14px; padding: 14px 16px; cursor: pointer; }
.diy-checkbox { position: absolute; opacity: 0; width: 0; height: 0; }
.diy-step-num {
    flex-shrink: 0; width: 28px; height: 28px;
    border: 2px solid var(--border); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700; color: var(--text-light);
    transition: all .15s;
}
.is-done .diy-step-num { background: var(--success); border-color: var(--success); color: #fff; }
.is-done .diy-step-num::after { content: '✓'; }
.diy-step-body { flex: 1; }
.diy-step-name { display: block; font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.diy-step-desc { font-size: 14px; color: var(--text-light); margin: 0; }
.diy-step-tool { font-size: 12px; color: var(--text-muted); display: inline-block; margin-top: 4px; }
.diy-progress { margin-top: 16px; display: flex; align-items: center; gap: 10px; }
.diy-progress-bar { flex: 1; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.diy-progress-fill { height: 100%; background: var(--success); border-radius: 3px; transition: width .3s; }
.diy-progress-text { font-size: 13px; color: var(--text-light); white-space: nowrap; }

/* ===========================
   Master section
=========================== */
.master-section { background: var(--bg-gray); border-radius: var(--radius-lg); padding: 28px; margin-bottom: 36px; }
.call-master-when { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-bottom: 16px; font-size: 15px; }
.repair-cost { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
.cost-label { font-size: 14px; color: var(--text-light); }
.cost-value { font-size: 18px; font-weight: 700; color: var(--primary); }

/* ===========================
   Lead form
=========================== */
.lead-form-wrap { background: #fff; border: 2px solid var(--primary); border-radius: var(--radius-lg); padding: 24px; }
.lead-form-header { margin-bottom: 20px; }
.lead-form-title { font-size: 20px; font-weight: 700; color: var(--secondary); }
.lead-form-prefill { font-size: 14px; color: var(--text-light); margin-top: 4px; }
.lead-form { display: flex; flex-direction: column; gap: 14px; }
.lead-form-field { display: flex; flex-direction: column; gap: 4px; }
.lead-form-label { font-size: 13px; font-weight: 600; color: var(--text-light); }
.lead-form-input {
    padding: 11px 14px; border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 15px; font-family: inherit; outline: none; transition: border-color .2s;
}
.lead-form-input:focus { border-color: var(--primary); }
.lead-form-textarea { resize: vertical; min-height: 72px; }
.lead-form-submit {
    background: var(--primary); color: #fff; padding: 14px;
    border-radius: var(--radius); font-size: 17px; font-weight: 700;
    transition: background .15s; cursor: pointer;
}
.lead-form-submit:hover { background: var(--primary-dark); }
.lead-form-success { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 20px 0; text-align: center; }
.lead-form-success svg { flex-shrink: 0; }
.lead-form-success p { font-size: 16px; font-weight: 600; color: var(--success); }
.lead-form-error p { color: var(--danger); font-size: 14px; padding: 8px; }
.lead-form-guarantee { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 4px; }

/* ===========================
   FAQ accordion
=========================== */
.faq-section { margin-bottom: 36px; }
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-question {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; text-align: left; padding: 14px 16px;
    font-size: 15px; font-weight: 600; color: var(--secondary);
    cursor: pointer; transition: background .15s;
}
.faq-question:hover { background: var(--bg-gray); }
.faq-question[aria-expanded="true"] { background: var(--primary-light); color: var(--primary); }
.faq-icon { flex-shrink: 0; transition: transform .2s; }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(180deg); }
.faq-answer { padding: 0 16px 14px; font-size: 14px; color: var(--text); }

/* ===========================
   Related errors
=========================== */
.related-section { margin-bottom: 32px; }
.related-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.related-link {
    display: flex; flex-direction: column; gap: 2px;
    padding: 10px 14px; border: 1px solid var(--border);
    border-radius: var(--radius); color: var(--text); transition: border-color .15s;
}
.related-link:hover { border-color: var(--primary); color: var(--text); }
.related-code { font-family: var(--font-mono); font-weight: 700; color: var(--primary); }
.related-desc { font-size: 12px; color: var(--text-light); }

/* ===========================
   Sidebar
=========================== */
.error-sidebar { display: flex; flex-direction: column; gap: 16px; }
.sidebar-widget { background: var(--bg-gray); border-radius: var(--radius-lg); padding: 20px; }
.sidebar-cta { border: 2px solid var(--primary); background: var(--primary-light); }
.widget-title { font-size: 16px; font-weight: 700; color: var(--secondary); margin-bottom: 10px; }
.sidebar-cta p { font-size: 14px; color: var(--text); margin-bottom: 14px; }
.sidebar-guarantee { font-size: 12px; color: var(--text-muted); margin-top: 8px; text-align: center; }
.sidebar-nav-list { display: flex; flex-direction: column; gap: 6px; }
.sidebar-nav-list a { font-size: 14px; color: var(--primary); }
.sidebar-nav-list a:hover { color: var(--primary-dark); }

/* ===========================
   Sticky CTA (mobile only)
=========================== */
.sticky-cta {
    display: none;
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 200;
    padding: 0 0 env(safe-area-inset-bottom);
}
.sticky-cta-btn {
    display: block; width: 100%;
    background: var(--primary); color: #fff;
    padding: 16px; text-align: center;
    font-size: 17px; font-weight: 700;
    box-shadow: 0 -4px 16px rgba(0,0,0,.15);
}
.sticky-cta-btn:hover { color: #fff; background: var(--primary-dark); }

/* ===========================
   Archive pages
=========================== */
.archive-page { padding-bottom: 60px; }
.archive-header { margin-bottom: 32px; }
.archive-h1 { font-size: clamp(22px, 3vw, 36px); font-weight: 700; color: var(--secondary); margin-bottom: 10px; }
.archive-desc { font-size: 16px; color: var(--text-light); max-width: 700px; }

.top-errors { margin-bottom: 40px; background: var(--bg-gray); border-radius: var(--radius-lg); padding: 24px; }
.top-errors-list { display: flex; flex-direction: column; gap: 10px; }
.top-error-row {
    display: grid; align-items: center;
    grid-template-columns: 60px 1fr 80px 1fr;
    gap: 12px; padding: 10px 14px;
    background: #fff; border-radius: var(--radius); color: var(--text);
    transition: box-shadow .15s;
}
.top-error-row:hover { box-shadow: var(--shadow); color: var(--text); }
.top-error-code { font-family: var(--font-mono); font-weight: 700; color: var(--primary); font-size: 16px; }
.top-error-bar-wrap { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.top-error-bar { height: 100%; background: var(--primary); border-radius: 4px; }
.top-error-freq { font-size: 12px; color: var(--text-light); text-align: right; }
.top-error-desc { font-size: 13px; color: var(--text); }

.all-errors-filter, .appliance-search { margin-bottom: 20px; }
.filter-input {
    width: 100%; max-width: 400px;
    padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 15px; font-family: inherit; outline: none;
}
.filter-input:focus { border-color: var(--primary); }

.errors-table-wrap { overflow-x: auto; }
.errors-table { width: 100%; border-collapse: collapse; }
.errors-table thead th { background: var(--secondary); color: #fff; padding: 12px 14px; text-align: left; font-size: 14px; font-weight: 600; }
.errors-table tbody tr { border-bottom: 1px solid var(--border-light); transition: background .1s; }
.errors-table tbody tr:hover { background: var(--bg-gray); }
.errors-table tbody tr[hidden] { display: none; }
.errors-table td { padding: 10px 14px; font-size: 14px; vertical-align: middle; }
.error-code-link { font-family: var(--font-mono); font-weight: 700; color: var(--primary); }
.error-code-link:hover { color: var(--primary-dark); }

.brands-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.brand-card { border: 1px solid var(--border); border-radius: var(--radius); transition: border-color .15s, box-shadow .15s; color: var(--text); }
.brand-card:hover { border-color: var(--primary); box-shadow: var(--shadow); color: var(--text); }
.brand-card[hidden] { display: none; }
.brand-card-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; }
.brand-name { font-weight: 600; font-size: 15px; }
.brand-arrow { color: var(--primary); font-size: 16px; }

.empty-state { text-align: center; padding: 48px 20px; color: var(--text-light); font-size: 16px; }
.empty-state a { color: var(--primary); }

/* ===========================
   404
=========================== */
.error-404 { text-align: center; padding: 64px 20px; max-width: 520px; margin: 0 auto; }
.error-404-code { font-size: 96px; font-weight: 900; color: var(--primary); line-height: 1; }
.error-404-title { font-size: 28px; font-weight: 700; color: var(--secondary); margin: 16px 0 12px; }
.error-404-desc { color: var(--text-light); margin-bottom: 28px; }
.search-form-404 { display: flex; gap: 10px; max-width: 380px; margin: 0 auto 32px; }
.search-input-404 { flex: 1; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 15px; }
.error-404-links h2 { font-size: 18px; margin-bottom: 14px; }
.appliance-grid-404 { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 24px; }
.appliance-grid-404 li a { padding: 6px 14px; border: 1px solid var(--border); border-radius: 20px; font-size: 14px; color: var(--text); transition: border-color .15s; }
.appliance-grid-404 li a:hover { border-color: var(--primary); color: var(--primary); }

/* ===========================
   Footer
=========================== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,.7); padding: 48px 0 24px; margin-top: 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.footer-logo { font-size: 20px; font-weight: 700; color: #fff; display: flex; align-items: center; gap: 6px; margin-bottom: 12px; }
.footer-desc { font-size: 14px; line-height: 1.6; }
.footer-heading { font-size: 14px; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.6); transition: color .15s; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; text-align: center; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.4); }
.footer-bottom p + p { margin-top: 6px; }
.footer-disclaimer { font-size: 12px; }

/* ===========================
   Responsive
=========================== */
@media (max-width: 768px) {
    .header-nav { display: none; }
    .hero-search-fields { grid-template-columns: 1fr; }
    .error-layout { grid-template-columns: 1fr; }
    .error-sidebar { display: none; }
    .sticky-cta { display: block; }
    .main-content.error-page { padding-bottom: 80px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .top-error-row { grid-template-columns: 60px 1fr; }
    .top-error-freq, .top-error-desc { display: none; }
}

@media (max-width: 480px) {
    .hero { padding: 32px 0 28px; }
    .hero-title { font-size: 24px; }
    .hero-subtitle { font-size: 15px; }
    .hero-search { padding: 14px; }
    .verticals-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-col:not(:first-child) { display: none; }
}

/* ===========================
   Discussion section
=========================== */
.discussion-section { margin-bottom: 36px; }
.discussion-section .section-title { display: flex; align-items: center; gap: 8px; }
.discussion-count {
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--primary); color: #fff;
    font-size: 12px; font-weight: 700; border-radius: 20px;
    padding: 2px 8px; line-height: 1.4;
}
.discussion-empty { color: var(--text-light); font-size: 15px; margin-bottom: 24px; }

/* Thread list */
.discussion-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.discussion-thread { }
.comment-replies-list {
    margin-left: 52px; margin-top: 14px;
    border-left: 2px solid var(--border-light);
    padding-left: 16px;
    display: flex; flex-direction: column; gap: 14px;
}

/* Comment card */
.discussion-comment { display: flex; gap: 12px; align-items: flex-start; }

/* Avatar */
.comment-avatar { flex-shrink: 0; }
.avatar-photo { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.avatar-letter {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--bg-gray); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 700; color: var(--text-light);
    flex-shrink: 0;
}
.avatar-master {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

/* Comment body */
.comment-body { flex: 1; min-width: 0; }
.comment-master-wrap .comment-body {
    background: #fffbf9;
    border: 1px solid #ffd5c2;
    border-radius: var(--radius);
    padding: 12px 14px;
}
.comment-meta-line {
    display: flex; align-items: center; gap: 8px;
    flex-wrap: wrap; margin-bottom: 6px;
}
.comment-author-name { font-weight: 600; font-size: 14px; color: var(--secondary); }
.comment-master-link { color: var(--primary); }
.comment-master-link:hover { color: var(--primary-dark); }
.badge-master {
    display: inline-flex; align-items: center;
    background: var(--primary); color: #fff;
    font-size: 10px; font-weight: 700;
    padding: 2px 6px; border-radius: 4px;
    text-transform: uppercase; letter-spacing: .4px;
}
.master-stars { font-size: 13px; color: #f59e0b; font-weight: 700; }
.comment-time { font-size: 12px; color: var(--text-muted); margin-left: auto; white-space: nowrap; }
.comment-text-content {
    font-size: 14px; line-height: 1.65; color: var(--text);
    margin-bottom: 8px;
    white-space: pre-line;
}
.reply-toggle-btn {
    font-size: 13px; color: var(--text-light);
    background: none; border: none; cursor: pointer;
    padding: 2px 0; transition: color .15s;
}
.reply-toggle-btn:hover { color: var(--primary); }

/* Discussion ask form */
.discussion-ask {
    background: var(--bg-gray); border-radius: var(--radius-lg);
    padding: 24px; margin-top: 8px;
}
.discussion-ask-title { font-size: 18px; font-weight: 700; color: var(--secondary); margin-bottom: 16px; }
.discussion-form-row { margin-bottom: 12px; }
.discussion-input {
    width: 100%; padding: 10px 14px;
    border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 15px; font-family: inherit;
    outline: none; transition: border-color .2s;
}
.discussion-input:focus { border-color: var(--primary); }
.discussion-textarea {
    width: 100%; padding: 10px 14px;
    border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 15px; font-family: inherit;
    outline: none; resize: vertical; transition: border-color .2s;
}
.discussion-textarea:focus { border-color: var(--primary); }
.discussion-form-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.discussion-submit { padding: 10px 24px; font-size: 15px; }
.discussion-note { font-size: 13px; color: var(--text-light); }
.discussion-form-status {
    font-size: 14px; padding: 8px 12px;
    border-radius: var(--radius); margin-top: 10px;
}
.discussion-form-status.status-success { background: #e8f5e9; color: #2e7d32; }
.discussion-form-status.status-error   { background: #ffebee; color: #b71c1c; }

/* Inline reply form */
.inline-reply-form { margin-top: 12px; margin-left: 52px; }
.cancel-reply-btn {
    font-size: 14px; color: var(--text-light);
    padding: 8px 14px; border: 1px solid var(--border);
    border-radius: var(--radius); cursor: pointer;
    transition: color .15s, border-color .15s;
}
.cancel-reply-btn:hover { color: var(--primary); border-color: var(--primary); }

/* New comment animation */
.comment-new { animation: slideInComment .3s ease; }
@keyframes slideInComment {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: none; }
}

/* ===========================
   Masters archive
=========================== */
.masters-page { padding-bottom: 60px; }
.masters-header { margin: 24px 0 20px; }
.masters-h1 { font-size: clamp(22px, 3vw, 36px); font-weight: 700; color: var(--secondary); margin-bottom: 8px; }
.masters-desc { font-size: 16px; color: var(--text-light); }

.masters-stats-row {
    display: flex; gap: 24px; flex-wrap: wrap;
    background: var(--bg-gray); border-radius: var(--radius-lg);
    padding: 16px 24px; margin-bottom: 28px;
    font-size: 14px; color: var(--text-light);
}
.masters-stat { display: flex; align-items: center; gap: 8px; }
.masters-stat-num { font-size: 20px; font-weight: 700; color: var(--primary); }

.masters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.master-card {
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 20px; background: var(--bg);
    display: flex; flex-direction: column; gap: 12px;
    transition: border-color .15s, box-shadow .15s;
}
.master-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.master-card-header { display: flex; align-items: center; gap: 14px; }
.master-card-photo {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--primary-light); border: 2px solid var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; font-weight: 700; color: var(--primary);
    flex-shrink: 0; overflow: hidden;
}
.master-card-photo img { width: 100%; height: 100%; object-fit: cover; }
.master-card-name { font-size: 16px; font-weight: 700; color: var(--secondary); margin-bottom: 4px; }
.master-card-rating { display: flex; align-items: center; gap: 6px; }
.master-card-stars { color: #f59e0b; font-weight: 700; font-size: 14px; }
.master-card-reviews { font-size: 13px; color: var(--text-muted); }
.master-card-spec { font-size: 13px; color: var(--text); }
.master-card-spec-label { color: var(--text-light); }
.master-card-stats { display: flex; gap: 16px; font-size: 13px; color: var(--text-light); }
.master-card-stat span { font-weight: 700; color: var(--text); }
.master-card-actions { display: flex; gap: 10px; margin-top: 4px; }
.btn-master-profile {
    flex: 1; padding: 9px 12px; text-align: center;
    border: 1.5px solid var(--primary); border-radius: var(--radius);
    color: var(--primary); font-size: 14px; font-weight: 600;
    transition: background .15s, color .15s;
}
.btn-master-profile:hover { background: var(--primary); color: #fff; }
.btn-master-call {
    flex: 1; background: var(--primary); color: #fff;
    padding: 9px 12px; border-radius: var(--radius);
    font-size: 14px; font-weight: 600; text-align: center;
    transition: background .15s;
}
.btn-master-call:hover { background: var(--primary-dark); color: #fff; }

/* ===========================
   Single master page
=========================== */
.single-master-page { padding-bottom: 60px; }
.master-profile {
    display: grid; grid-template-columns: 200px 1fr;
    gap: 40px; align-items: start; margin: 28px 0 40px;
}
.master-photo-large {
    width: 180px; height: 180px; border-radius: var(--radius-lg);
    background: var(--primary-light); border: 2px solid var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 64px; font-weight: 700; color: var(--primary);
    overflow: hidden;
}
.master-photo-large img { width: 100%; height: 100%; object-fit: cover; }
.master-info-head { margin-bottom: 16px; }
.master-name-large { font-size: 28px; font-weight: 700; color: var(--secondary); margin-bottom: 8px; }
.master-rating-large { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.master-stars-large { font-size: 22px; color: #f59e0b; }
.master-rating-val { font-size: 20px; font-weight: 700; color: var(--secondary); }
.master-reviews-link { font-size: 14px; color: var(--text-light); }
.master-stats-row { display: flex; gap: 28px; flex-wrap: wrap; margin-bottom: 16px; }
.master-stat-item { text-align: center; }
.master-stat-num { font-size: 26px; font-weight: 700; color: var(--primary); display: block; }
.master-stat-lbl { font-size: 12px; color: var(--text-light); }
.master-spec-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.master-spec-tag {
    padding: 4px 12px; background: var(--primary-light);
    color: var(--primary); border-radius: 20px;
    font-size: 13px; font-weight: 500;
}
.master-brands-line { font-size: 14px; color: var(--text); margin-bottom: 16px; }
.master-bio { font-size: 15px; line-height: 1.65; color: var(--text); }
.master-cta-block {
    background: var(--bg-gray); border-radius: var(--radius-lg);
    padding: 32px; margin-bottom: 40px;
}
.master-cta-title { font-size: 22px; font-weight: 700; color: var(--secondary); margin-bottom: 8px; }
.master-cta-desc { font-size: 15px; color: var(--text-light); margin-bottom: 24px; }
.master-answers-section { margin-top: 8px; }
.master-answers-list { display: flex; flex-direction: column; gap: 8px; }
.master-answer-item {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 12px 16px; border: 1px solid var(--border);
    border-radius: var(--radius); color: var(--text);
    transition: border-color .15s;
    text-decoration: none;
}
.master-answer-item:hover { border-color: var(--primary); color: var(--text); }
.master-answer-code {
    font-family: var(--font-mono); font-weight: 700;
    color: var(--primary); font-size: 15px;
    min-width: 48px; flex-shrink: 0;
}
.master-answer-excerpt { flex: 1; font-size: 14px; color: var(--text); }
.master-answer-date { font-size: 12px; color: var(--text-muted); white-space: nowrap; flex-shrink: 0; }

/* ===========================
   Responsive — masters + discussions
=========================== */
@media (max-width: 768px) {
    .masters-grid { grid-template-columns: 1fr; }
    .master-profile { grid-template-columns: 1fr; gap: 24px; }
    .master-photo-large { width: 100px; height: 100px; font-size: 36px; }
    .comment-replies-list { margin-left: 20px; }
    .inline-reply-form { margin-left: 20px; }
    .masters-stats-row { gap: 12px; padding: 12px 16px; }
}