/* ===================== Module 1: CSS Variables ===================== */
:root {
    --bg-dark:     #0D1117;
    --bg-mid:      #111621;
    --bg-card:     #161C26;
    --bg-footer:   #090C11;
    --teal:        #1A9E8F;
    --teal-dim:    rgba(26,158,143,0.15);
    --teal-border: rgba(26,158,143,0.20);
    --amber:       #F5A620;
    --amber-dim:   rgba(245,166,32,0.15);
    --green:       #22C55E;
    --green-dim:   rgba(34,197,94,0.15);
    --text-bright: #F8FAFB;
    --text-mid:    #94A3B8;
    --text-dim:    #475569;
    --text-muted:  #334155;
    --admin-primary: #0F2942;
    --admin-secondary: #46C1E0;
    --admin-bg: #F7FAFD;
    --admin-card-bg: #FFFFFF;
    --admin-border: #E8EEF4;
    --admin-shadow-sm: 0 2px 8px rgba(15, 41, 66, 0.06);
    --admin-shadow-md: 0 4px 16px rgba(15, 41, 66, 0.08);
    --admin-shadow-lg: 0 8px 32px rgba(15, 41, 66, 0.1);
    --admin-transition: all 0.3s ease;
}

/* ===================== Module 2: Reset & Base ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
    font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-bright);
    width: 1440px;
    margin: 0 auto;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ===================== Module 3: Scaling Wrapper ===================== */
#scale-wrapper {
    width: 1440px;
    transform-origin: top left;
}

/* ===================== Module 4: Header ===================== */
.header {
    width: 1440px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 80px;
    background: rgba(13,17,23,0.95);
    border-bottom: 1px solid rgba(26,158,143,0.30);
    position: sticky;
    top: 0;
    z-index: 100;
}
.logo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo-mark {
    width: 36px; height: 36px;
    background: var(--teal);
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 14px; font-weight: 700;
    color: var(--bg-dark);
}
.logo-text {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 22px; font-weight: 700;
    color: var(--text-bright);
}
.nav-links {
    display: flex;
    gap: 40px;
}
.nav-links a {
    font-family: 'IBM Plex Sans', 'Inter', sans-serif;
    font-size: 14px;
    font-style: italic;
    font-weight: 300;
    color: var(--text-mid);
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-bright); }
.header-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: var(--teal);
    border-radius: 4px;
    font-family: 'Inter', sans-serif;
    font-size: 14px; font-weight: 600;
    color: var(--bg-dark);
    cursor: pointer;
    transition: opacity 0.2s;
}
.header-cta:hover { opacity: 0.85; }

/* ===================== Module 5: Hero Section ===================== */
.hero-section {
    width: 1440px;
    height: 720px;
    display: flex;
    align-items: center;
    background: linear-gradient(to right, #0D1117 0%, #091617 50%, #0D1117 100%);
    position: relative;
    overflow: hidden;
}
.hero-left {
    width: 640px;
    padding-left: 80px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background: var(--teal-dim);
    border: 1px solid rgba(26,158,143,0.40);
    border-radius: 2px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--teal);
    width: fit-content;
}
.hero-h1 {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 72px; font-weight: 700;
    line-height: 82px;
    color: var(--text-bright);
    word-break: keep-all;
    line-break: strict;
}
.hero-sub {
    font-size: 18px; line-height: 30px;
    color: var(--text-mid);
    max-width: 520px;
}
.hero-ctas {
    display: flex;
    gap: 16px;
    align-items: center;
}
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 28px;
    background: var(--teal);
    border-radius: 4px;
    font-size: 16px; font-weight: 600;
    color: var(--text-bright);
    cursor: pointer;
    transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.85; }
.btn-secondary {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 28px;
    border: 1px solid rgba(121,163,184,0.50);
    border-radius: 4px;
    font-size: 16px;
    color: var(--text-mid);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}
.btn-secondary:hover { border-color: var(--teal); color: var(--text-bright); }
.hero-trust {
    font-size: 13px;
    color: var(--text-muted);
}
.hero-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.terminal-wrap {
    width: 620px; height: 480px;
    border: 1px solid rgba(26,158,143,0.20);
    border-radius: 8px;
    overflow: hidden;
}
.terminal-header {
    height: 36px;
    background: #121820;
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 8px;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red   { background: #EF4444; }
.dot-yellow{ background: #F5A420; }
.dot-green { background: #32C55E; }
.terminal-title {
    margin-left: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-dim);
}
.terminal-body {
    background: #0D1117;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    height: calc(480px - 36px);
    overflow: hidden;
}
.code-line { font-family: 'JetBrains Mono', monospace; font-size: 13px; line-height: 17px; }
.cl-prompt  { color: var(--text-mid); }
.cl-cmd     { color: var(--teal); }
.cl-process { color: var(--amber); }
.cl-data    { color: var(--text-dim); line-height: 22px; }
.cl-success { color: var(--green); }

/* ===================== Module 6: Problem/Solution Section ===================== */
.ps-section {
    width: 1440px;
    background: #111621;
    padding: 100px 0 80px;
}
.section-header {
    text-align: center;
    margin-bottom: 64px;
}
.section-label {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--teal);
    margin-bottom: 16px;
}
.section-h2 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 48px; font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 16px;
}
.section-desc {
    font-size: 16px; line-height: 26px;
    color: var(--text-dim);
    max-width: 680px;
    margin: 0 auto;
}
.steps-row {
    display: flex;
    gap: 32px;
    padding: 0 80px;
}
.step-card {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid rgba(26,158,143,0.15);
    border-radius: 4px;
    padding: 32px;
}
.step-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 36px; font-weight: 700;
    margin-bottom: 16px;
}
.step-num.teal   { color: var(--teal); }
.step-num.amber  { color: var(--amber); }
.step-num.green  { color: var(--green); }
.step-title {
    font-size: 20px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 16px;
}
.step-desc {
    font-size: 14px; line-height: 22px;
    color: var(--text-dim);
}

/* ===================== Module 7: Core Features Section ===================== */
.feat-section {
    width: 1440px;
    background: var(--bg-dark);
    padding: 100px 0;
}
.feat-row {
    display: flex;
    align-items: center;
    gap: 80px;
    padding: 0 80px;
    margin-bottom: 80px;
}
.feat-row:last-child { margin-bottom: 0; }
.feat-text {
    width: 480px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.feat-icon {
    width: 48px; height: 48px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}
.feat-icon img { width: 36px; height: 36px; }
.feat-icon.teal   { background: var(--teal-dim);  border: 1px solid rgba(26,158,143,0.30); }
.feat-icon.amber  { background: var(--amber-dim); border: 1px solid rgba(245,166,32,0.30); }
.feat-icon.green  { background: var(--green-dim); border: 1px solid rgba(34,197,94,0.30); }
.feat-title {
    font-size: 32px; font-weight: 700; line-height: 40px;
    color: var(--text-bright);
}
.feat-desc {
    font-size: 16px; line-height: 26px;
    color: var(--text-dim);
}
.feat-tags {
    display: flex;
    gap: 8px;
}
.tag {
    display: inline-flex;
    padding: 5px 12px;
    background: var(--bg-card);
    border-radius: 2px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
}
.tag.teal   { color: var(--teal); }
.tag.amber  { color: var(--amber); }
.tag.green  { color: var(--green); }
.feat-visual {
    flex: 1;
    height: 360px;
    border-radius: 6px;
    overflow: hidden;
}
.feat-visual img {
    width: 100%; height: 100%;
    object-fit: cover;
}
.feat-visual.teal-border  { border: 1px solid rgba(26,158,143,0.15); background: var(--bg-card); }
.feat-visual.amber-border { border: 1px solid rgba(245,166,32,0.15); }
.feat-visual.green-border { border: 1px solid rgba(34,197,94,0.15); }
.feat-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px;
    color: var(--text-muted);
    background: var(--bg-card);
}

/* ===================== Module 8: Bento Grid Section ===================== */
.bento-section {
    width: 1440px;
    background: #111621;
    padding: 100px 0 80px;
}
.bento-grid {
    padding: 48px 80px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.bento-row {
    display: flex;
    gap: 16px;
}
.bento-card {
    padding: 28px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.bc-api   { flex: 1; background: var(--bg-card); border: 1px solid rgba(26,158,143,0.12); }
.bc-auth  { flex: 1; background: var(--bg-card); border: 1px solid rgba(245,166,32,0.12); }
.bc-ai    { flex: 1; background: var(--bg-card); border: 1px solid rgba(34,197,94,0.12);  }
.bc-dash  {
    width: 876px;
    background: linear-gradient(to right, #121820, #161E2A);
    border: 1px solid rgba(26,158,143,0.20);
}
.bc-deploy {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid rgba(245,166,32,0.15);
    justify-content: center;
}
.bc-title-sm  { font-size: 16px; font-weight: 600; color: var(--text-bright); }
.bc-title-lg  { font-size: 20px; font-weight: 700; color: var(--text-bright); }
.bc-desc {
    font-size: 13px; line-height: 20px;
    color: var(--text-dim);
}
.bc-desc-lg {
    font-size: 14px; line-height: 22px;
    color: var(--text-dim);
}
.bc-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
}
.bc-tag.teal  { color: var(--teal); }
.bc-tag.amber { color: var(--amber); }
.bc-tag.green { color: var(--green); }
.stats-row {
    display: flex;
    gap: 40px;
}
.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.stat-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 32px; font-weight: 700;
    line-height: 42px;
}
.stat-num.teal  { color: var(--teal); }
.stat-num.amber { color: var(--amber); }
.stat-num.green { color: var(--green); }
.stat-label {
    font-size: 12px;
    color: var(--text-dim);
}

/* ===================== Module 9: CTA Section ===================== */
.cta-section {
    width: 1440px;
    padding: 120px 0 100px;
    background: linear-gradient(to bottom, #0D1F1E, #0D1117);
    border: 1px solid rgba(26,158,143,0.20);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}
.cta-h2 {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 56px; font-weight: 700;
    color: var(--text-bright);
    max-width: 728px;
    word-break: keep-all;
    line-break: strict;
}
.cta-sub {
    font-size: 18px;
    color: var(--text-dim);
    max-width: 612px;
}
.cta-btns {
    display: flex;
    gap: 16px;
    align-items: center;
}
.btn-cta-primary {
    display: inline-flex; align-items: center; justify-content: center;
    width: 136px; height: 51px;
    background: var(--teal);
    border-radius: 4px;
    font-size: 16px; font-weight: 600;
    color: var(--text-bright);
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(26,158,143,0.30);
    transition: opacity 0.2s;
}
.btn-cta-primary:hover { opacity: 0.85; }
.btn-cta-secondary {
    display: inline-flex; align-items: center; justify-content: center;
    width: 136px; height: 51px;
    border: 1px solid rgba(121,163,184,0.40);
    border-radius: 4px;
    font-size: 16px;
    color: var(--text-mid);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}
.btn-cta-secondary:hover { border-color: var(--teal); color: var(--text-bright); }

/* ===================== Module 10: Footer ===================== */
.footer {
    width: 1440px;
    background: var(--bg-footer);
    border-top: 1px solid rgba(26,158,143,0.15);
    padding: 80px 80px 0;
}
.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 60px;
}
.footer-brand {
    width: 300px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.footer-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 24px; font-weight: 700;
    color: var(--text-bright);
}
.footer-tagline {
    font-size: 13px; line-height: 22px;
    color: var(--text-dim);
    max-width: 260px;
}
.footer-icp {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
}
.footer-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.footer-col-title {
    font-size: 13px; font-weight: 600;
    color: var(--text-bright);
}
.footer-col a {
    font-size: 13px;
    color: var(--text-dim);
    transition: color 0.2s;
}
.footer-col a:hover { color: var(--text-bright); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-top: 1px solid #1A2638;
}
.footer-copyright {
    font-size: 12px;
    color: var(--text-muted);
}
.footer-domains {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--teal);
}

/* ===================== Module 11: Services Strip ===================== */
.services-strip {
    width: 1440px;
    height: 100px;
    background: var(--amber);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    padding: 0 80px;
}
.services-strip-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px; font-weight: 700;
    color: #0D1117;
    opacity: 0.85;
}

/* ===================== Module 12: Sub-page Dark Theme ===================== */
.sub-page-header {
    width: 1440px;
    background: linear-gradient(135deg, #0D1117 0%, #091617 100%);
    padding: 80px 80px 60px;
    border-bottom: 1px solid rgba(26,158,143,0.15);
}
.sub-page-header h1 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 48px; font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 16px;
}
.sub-page-header p {
    font-size: 16px;
    color: var(--text-mid);
}
.dark-card {
    background: var(--bg-card);
    border: 1px solid rgba(26,158,143,0.15);
    border-radius: 4px;
    transition: border-color 0.2s;
}
.dark-card:hover {
    border-color: rgba(26,158,143,0.30);
}
.dark-card h3 {
    font-size: 20px; font-weight: 600;
    color: var(--text-bright);
}
.dark-card p {
    font-size: 14px;
    color: var(--text-mid);
}
.dark-form {
    background: var(--bg-card);
    padding: 48px;
    border-radius: 4px;
    border: 1px solid rgba(26,158,143,0.15);
}
.dark-form h3 {
    font-size: 24px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 32px;
}
.dark-form .form-group {
    margin-bottom: 20px;
}
.dark-form label {
    display: block;
    font-size: 14px; font-weight: 500;
    color: var(--text-mid);
    margin-bottom: 8px;
}
.dark-form input,
.dark-form select,
.dark-form textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    border: 1px solid rgba(26,158,143,0.15);
    border-radius: 4px;
    background: var(--bg-dark);
    color: var(--text-bright);
    outline: none;
    transition: border-color 0.2s;
}
.dark-form input:focus,
.dark-form select:focus,
.dark-form textarea:focus {
    border-color: rgba(26,158,143,0.50);
}
.dark-form textarea {
    resize: vertical;
    min-height: 120px;
}
.dark-form button,
.dark-form .btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 28px;
    background: var(--teal);
    border-radius: 4px;
    font-size: 16px; font-weight: 600;
    color: var(--text-bright);
    cursor: pointer;
    border: none;
    transition: opacity 0.2s;
}
.dark-form button:hover,
.dark-form .btn-primary:hover { opacity: 0.85; }

.sub-page-content {
    width: 1440px;
    padding: 60px 80px;
}
.sub-page-content h2 {
    font-size: 24px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 16px;
    padding-top: 24px;
}
.sub-page-content h2:first-child { padding-top: 0; }
.sub-page-content p {
    font-size: 16px;
    color: var(--text-mid);
    line-height: 1.8;
    margin-bottom: 16px;
}
.sub-page-content ul {
    list-style: none;
    margin-bottom: 24px;
}
.sub-page-content li {
    font-size: 16px;
    color: var(--text-mid);
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}
.sub-page-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--teal);
}

.dark-grid {
    display: grid;
    gap: 24px;
    padding: 60px 80px;
}
.dark-grid-3 { grid-template-columns: repeat(3, 1fr); }
.dark-grid-4 { grid-template-columns: repeat(4, 1fr); }

.dark-card .card-inner {
    padding: 32px;
}
.dark-card .card-inner .icon {
    width: 56px; height: 56px;
    background: var(--teal-dim);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 24px;
}
.dark-card .card-inner .icon svg {
    width: 28px; height: 28px;
    color: var(--teal);
}
.dark-card .card-inner ul {
    list-style: none;
}
.dark-card .card-inner li {
    font-size: 14px;
    color: var(--text-dim);
    padding: 8px 0;
    border-bottom: 1px solid rgba(26,158,143,0.10);
}
.dark-card .card-inner li:last-child { border-bottom: none; }
.dark-card .card-inner li::before {
    content: '▸';
    color: var(--teal);
    margin-right: 8px;
}

.dark-card .product-info {
    padding: 24px;
}
.dark-card .product-info h3 {
    font-size: 16px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 8px;
}
.dark-card .product-info p {
    font-size: 13px;
    color: var(--text-mid);
    margin-bottom: 12px;
}
.dark-card .product-info .category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--teal-dim);
    color: var(--teal);
    font-size: 12px;
    border-radius: 4px;
}

.dark-card .case-info {
    padding: 24px;
}
.dark-card .case-info .location {
    display: inline-block;
    padding: 4px 12px;
    background: var(--teal-dim);
    color: var(--teal);
    font-size: 12px;
    border-radius: 4px;
    margin-bottom: 12px;
}
.dark-card .case-info h3 {
    font-size: 18px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 12px;
}
.dark-card .case-info p {
    font-size: 14px;
    color: var(--text-mid);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.dark-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--bg-card);
}

.product-placeholder-dark {
    width: 100%;
    height: 180px;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-placeholder-dark svg {
    width: 64px; height: 64px;
    color: var(--text-dim);
}

.case-placeholder-dark {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--teal-dim) 0%, var(--bg-card) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}
.case-placeholder-dark svg {
    width: 80px; height: 80px;
    color: var(--teal);
}

.contact-dark-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}
.contact-dark-info {
    background: var(--bg-card);
    padding: 48px;
    border-radius: 4px;
    border: 1px solid rgba(26,158,143,0.15);
}
.contact-dark-info h3 {
    font-size: 24px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 32px;
}
.contact-dark-info .info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 24px;
}
.contact-dark-info .info-item svg {
    width: 24px; height: 24px;
    color: var(--teal);
    margin-right: 16px;
    flex-shrink: 0;
}
.contact-dark-info .info-item div h4 {
    font-size: 16px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 4px;
}
.contact-dark-info .info-item div p {
    font-size: 14px;
    color: var(--text-mid);
}
.contact-dark-info .special-service {
    background: var(--teal-dim);
    padding: 20px;
    border-radius: 4px;
    margin-top: 24px;
}
.contact-dark-info .special-service p {
    font-size: 14px;
    color: var(--teal);
    font-weight: 500;
}

.detail-dark-content {
    max-width: 1000px;
    margin: 0 auto;
}
.detail-dark-content h1 {
    font-size: 28px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 16px;
}
.detail-dark-content h2 {
    font-size: 22px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 16px;
    padding-top: 32px;
}
.detail-dark-content h2:first-of-type { padding-top: 0; }
.detail-dark-content p {
    font-size: 16px;
    color: var(--text-mid);
    line-height: 1.8;
    margin-bottom: 16px;
}
.detail-dark-content ul {
    list-style: none;
    margin-bottom: 24px;
}
.detail-dark-content li {
    font-size: 16px;
    color: var(--text-mid);
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}
.detail-dark-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--teal);
}
.detail-dark-content .category {
    display: inline-block;
    padding: 6px 16px;
    background: var(--teal-dim);
    color: var(--teal);
    font-size: 14px;
    border-radius: 4px;
    margin-bottom: 24px;
}
.detail-dark-content .location {
    display: inline-block;
    padding: 6px 16px;
    background: var(--teal-dim);
    color: var(--teal);
    font-size: 14px;
    border-radius: 4px;
    margin-bottom: 24px;
}
.detail-dark-content img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 4px;
    background: var(--bg-card);
    margin-bottom: 48px;
}

.product-detail-dark-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}
.product-detail-dark-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 4px;
    background: var(--bg-card);
}

.about-dark-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}
.about-dark-content section {
    margin-bottom: 64px;
}
.about-dark-content section:last-child { margin-bottom: 0; }
.about-dark-content h2 {
    font-size: 28px; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 24px;
    text-align: center;
}
.about-dark-content h3 {
    font-size: 20px; font-weight: 600;
    color: var(--teal);
    margin-bottom: 16px;
}
.about-dark-content p {
    font-size: 16px;
    color: var(--text-mid);
    line-height: 1.8;
    margin-bottom: 16px;
}
.about-dark-content .highlight {
    color: var(--teal);
    font-weight: 600;
}
.about-dark-content ul {
    list-style: none;
    margin-bottom: 24px;
}
.about-dark-content li {
    font-size: 16px;
    color: var(--text-mid);
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}
.about-dark-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--teal);
}

/* ===================== Module 13: Utility Classes ===================== */
.text-bright { color: var(--text-bright); }
.text-mid    { color: var(--text-mid); }
.text-dim    { color: var(--text-dim); }
.text-muted  { color: var(--text-muted); }
.bg-card     { background: var(--bg-card); }
.teal-border { border-color: rgba(26,158,143,0.30); }

/* ===================== Admin System (Preserved) ===================== */
.admin-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--admin-primary) 0%, #1a3a5c 100%);
    width: auto;
}
.login-container {
    background-color: var(--admin-card-bg);
    padding: 48px;
    border-radius: 8px;
    box-shadow: var(--admin-shadow-lg);
    width: 100%;
    max-width: 400px;
}
.login-container .logo {
    text-align: center;
    margin-bottom: 32px;
}
.login-container .logo .logo-text {
    font-size: 32px;
    color: var(--admin-primary);
}
.login-container h2 {
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    color: var(--admin-primary);
    margin-bottom: 32px;
}
.login-container .form-group {
    margin-bottom: 20px;
}
.login-container label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--admin-primary);
    margin-bottom: 8px;
}
.login-container input {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    border: 1px solid var(--admin-border);
    border-radius: 4px;
    background-color: var(--admin-bg);
    outline: none;
    transition: var(--admin-transition);
}
.login-container input:focus {
    border-color: var(--admin-secondary);
}
.login-container .btn {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    background-color: var(--admin-primary);
    color: #FFFFFF;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
.login-container .error {
    color: #E74C3C;
    font-size: 14px;
    text-align: center;
    margin-bottom: 16px;
}
.admin-layout {
    display: flex;
    min-height: 100vh;
    width: auto;
}
.admin-sidebar {
    width: 250px;
    background-color: var(--admin-primary);
    color: #FFFFFF;
    padding: 24px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}
.admin-sidebar .logo {
    padding: 0 24px;
    margin-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 24px;
}
.admin-sidebar .logo-text {
    font-size: 24px;
    color: #FFFFFF;
}
.admin-sidebar .logo-sub {
    color: var(--admin-secondary);
}
.admin-sidebar ul {
    list-style: none;
}
.admin-sidebar li {
    margin-bottom: 4px;
}
.admin-sidebar a {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: var(--admin-transition);
}
.admin-sidebar a:hover,
.admin-sidebar a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
}
.admin-sidebar a.active {
    border-left: 3px solid var(--admin-secondary);
}
.admin-sidebar a svg {
    width: 20px;
    height: 20px;
    margin-right: 12px;
}
.admin-content {
    flex: 1;
    margin-left: 250px;
    padding: 24px;
    background-color: var(--admin-bg);
    min-height: 100vh;
}
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding: 16px 24px;
    background-color: var(--admin-card-bg);
    border-radius: 8px;
    box-shadow: var(--admin-shadow-sm);
}
.admin-header h1 {
    font-size: 20px;
    font-weight: 600;
    color: var(--admin-primary);
}
.admin-header .user-info {
    font-size: 14px;
    color: #5A6B7D;
}
.admin-header .logout {
    margin-left: 16px;
    color: #E74C3C;
    font-size: 14px;
}
.admin-card {
    background-color: var(--admin-card-bg);
    border-radius: 8px;
    box-shadow: var(--admin-shadow-sm);
    padding: 24px;
    margin-bottom: 24px;
}
.admin-card h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--admin-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--admin-border);
}
.admin-table {
    width: 100%;
    border-collapse: collapse;
}
.admin-table th,
.admin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--admin-border);
    font-size: 14px;
}
.admin-table th {
    background-color: var(--admin-bg);
    font-weight: 600;
    color: var(--admin-primary);
}
.admin-table td {
    color: #5A6B7D;
}
.admin-table tr:hover {
    background-color: rgba(70, 193, 224, 0.03);
}
.admin-table .action-links {
    display: flex;
    gap: 12px;
}
.admin-table .action-links a {
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 4px;
    transition: var(--admin-transition);
}
.admin-table .edit {
    background-color: rgba(70, 193, 224, 0.1);
    color: var(--admin-secondary);
}
.admin-table .edit:hover {
    background-color: var(--admin-secondary);
    color: #FFFFFF;
}
.admin-table .delete {
    background-color: rgba(231, 76, 60, 0.1);
    color: #E74C3C;
}
.admin-table .delete:hover {
    background-color: #E74C3C;
    color: #FFFFFF;
}
.admin-form {
    max-width: 800px;
}
.admin-form .form-group {
    margin-bottom: 20px;
}
.admin-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--admin-primary);
    margin-bottom: 8px;
}
.admin-form input,
.admin-form select,
.admin-form textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    border: 1px solid var(--admin-border);
    border-radius: 4px;
    background-color: var(--admin-bg);
    color: var(--admin-primary);
    outline: none;
    transition: var(--admin-transition);
}
.admin-form input:focus,
.admin-form select:focus,
.admin-form textarea:focus {
    border-color: var(--admin-secondary);
}
.admin-form textarea {
    resize: vertical;
    min-height: 150px;
}
.admin-form .btn {
    margin-right: 12px;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    border: none;
}
.admin-form .btn-primary {
    background-color: var(--admin-primary);
    color: #FFFFFF;
}
.admin-form .btn-secondary {
    background-color: transparent;
    color: var(--admin-primary);
    border: 1px solid var(--admin-border);
}
.success-message {
    background-color: rgba(46, 204, 113, 0.1);
    color: #2ECC71;
    padding: 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
}
.error-message {
    background-color: rgba(231, 76, 60, 0.1);
    color: #E74C3C;
    padding: 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}
.stat-card {
    background-color: var(--admin-card-bg);
    border-radius: 8px;
    padding: 24px;
    box-shadow: var(--admin-shadow-sm);
    text-align: center;
}
.stat-card .stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--admin-primary);
    margin-bottom: 8px;
}
.stat-card .stat-label {
    font-size: 14px;
    color: #5A6B7D;
}