/* === GL BIOCHEM 吉尔生化 — MODERN DESIGN SYSTEM (2024) === */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    /* GL Biochem Brand Colors */
    --primary: #2C3070;
    --primary-dark: #1e2155;
    --primary-darker: #141640;
    --primary-light: #4449a0;
    --primary-lighter: #6367c0;
    --primary-50: #eeeef8;
    --primary-100: #ddddf0;
    --primary-200: #b8b9db;

    /* Accent Red */
    --red: #C7000B;
    --red-dark: #a00009;
    --red-light: #e0131e;
    --red-50: #fef2f2;

    /* Gold */
    --gold: #C0A16B;
    --gold-dark: #a08550;
    --gold-light: #d4ba8a;

    /* Link Blue */
    --blue: #3b82f6;
    --blue-dark: #2563eb;
    --blue-light: #60a5fa;
    --blue-50: #eff6ff;

    /* Orange */
    --orange: #f59e0b;
    --orange-light: #fbbf24;

    /* Status */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Modern Neutrals */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --black: #020617;

    /* Surface */
    --border-light: #e2e8f0;
    --border-default: #cbd5e1;
    --surface-alt: #f8fafc;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-cn: 'Noto Serif SC', 'Microsoft YaHei', serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

    /* Modern Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-glow: 0 0 20px rgba(44,48,112,0.15);

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-full: 9999px;

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    --z-header: 1000;
    --z-mobile-menu: 1500;
    --z-modal: 2000;
}

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

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 20px; }
@media (min-width: 768px) { .container { padding: 0 32px; } }
@media (min-width: 1280px) { .container { padding: 0 40px; } }

a { color: var(--blue); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--blue-dark); }

img { max-width: 100%; height: auto; }

.cn-accent { font-family: var(--font-cn); }

/* === TOP BAR === */
.utility-bar {
    background: linear-gradient(135deg, var(--primary-darker) 0%, var(--primary) 100%);
    color: rgba(255,255,255,0.75);
    padding: 8px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.utility-bar-inner {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 8px;
}
.utility-bar-left { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.utility-bar-right { display: flex; align-items: center; gap: 16px; }
.utility-bar a {
    color: rgba(255,255,255,0.75); text-decoration: none;
    display: inline-flex; align-items: center; gap: 5px;
    transition: color var(--transition-fast);
}
.utility-bar a:hover { color: #fff; }
.utility-bar .crypto-badge {
    color: var(--gold-light); font-weight: 700;
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(192,161,107,0.12);
    padding: 3px 12px; border-radius: var(--radius-full);
    font-size: 12px; letter-spacing: 0.02em;
}
@media (max-width: 767px) {
    .utility-bar { text-align: center; }
    .utility-bar-inner { justify-content: center; }
    .utility-bar-right { display: none; }
}

/* === HEADER === */
.header {
    background: var(--white);
    padding: 0;
    position: sticky; top: 0; z-index: var(--z-header);
    box-shadow: 0 1px 0 var(--gray-200);
    backdrop-filter: blur(12px);
    background: rgba(255,255,255,0.95);
}
.header-main {
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    padding: 14px 0;
}
.logo {
    display: flex; align-items: center; text-decoration: none; gap: 12px;
    flex-shrink: 0;
}
.logo:hover { text-decoration: none; }
.logo-icon {
    width: 48px; height: 48px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; border: 2.5px solid var(--gold);
    box-shadow: 0 2px 8px rgba(44,48,112,0.2);
}
.logo-gl {
    font-size: 15px; font-weight: 900; color: var(--gold-light);
    letter-spacing: 1px;
}
.logo-text {
    font-size: 20px; font-weight: 800; color: var(--gray-900);
    line-height: 1.2; letter-spacing: -0.02em;
}
.logo-text small {
    display: block; font-size: 12px; font-weight: 500;
    color: var(--gray-500); letter-spacing: 0; margin-top: 1px;
}

/* Search */
.header-search { flex: 1; max-width: 520px; display: none; }
@media (min-width: 768px) { .header-search { display: flex; } }
.header-search-form {
    display: flex; width: 100%;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.header-search-form:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(44,48,112,0.1);
}
.header-search-input {
    flex: 1; padding: 10px 16px; border: none; outline: none;
    font-size: 14px; font-family: var(--font-family);
    color: var(--gray-800); background: var(--white);
}
.header-search-input::placeholder { color: var(--gray-400); }
.header-search-btn {
    padding: 0 20px; background: var(--primary); color: #fff;
    border: none; cursor: pointer; font-size: 15px;
    transition: background var(--transition-fast);
}
.header-search-btn:hover { background: var(--primary-dark); }

.header-actions { display: flex; align-items: center; gap: 10px; }

/* === NAV BAR === */
.nav-bar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}
.nav-bar-inner { display: none; align-items: center; }
@media (min-width: 768px) { .nav-bar-inner { display: flex; } }
.nav-desktop { display: contents; }
.nav-links { list-style: none; display: flex; align-items: center; }
.nav-link {
    display: block; padding: 14px 22px;
    color: rgba(255,255,255,0.85); text-decoration: none;
    font-size: 14px; font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    letter-spacing: 0.01em;
}
.nav-link:hover {
    background: rgba(255,255,255,0.08); color: #fff;
    text-decoration: none;
}
.nav-link.active {
    background: rgba(255,255,255,0.1); color: #fff;
    font-weight: 600;
    border-bottom-color: var(--gold);
}

/* === BUTTONS === */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 24px; font-weight: 600; font-size: 14px;
    border-radius: var(--radius-md); border: 1px solid transparent;
    cursor: pointer; transition: all var(--transition-fast);
    text-decoration: none; white-space: nowrap; line-height: 1.4;
    letter-spacing: 0.01em;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--red); color: #fff; border-color: var(--red); box-shadow: 0 2px 4px rgba(199,0,11,0.2); }
.btn-primary:hover { background: var(--red-dark); border-color: var(--red-dark); color: #fff; box-shadow: 0 4px 8px rgba(199,0,11,0.3); }
.btn-blue { background: var(--blue); color: #fff; border-color: var(--blue); box-shadow: 0 2px 4px rgba(59,130,246,0.2); }
.btn-blue:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.btn-secondary { background: var(--white); color: var(--gray-700); border-color: var(--gray-300); }
.btn-secondary:hover { background: var(--gray-50); border-color: var(--gray-400); color: var(--gray-900); }
.btn-gold { background: var(--gold); color: #fff; border-color: var(--gold); }
.btn-gold:hover { background: var(--gold-dark); color: #fff; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: var(--radius-lg); }
.btn-order { background: var(--red); color: #fff; font-weight: 700; }
.btn-order:hover { background: var(--red-dark); color: #fff; }

/* === UTILITIES === */
.text-center { text-align: center; }
.section-alt { background: var(--gray-50); }
.section-header { text-align: center; margin-bottom: 40px; }
.section-heading {
    font-size: 32px; font-weight: 800; color: var(--gray-900);
    margin-bottom: 12px; letter-spacing: -0.025em;
    line-height: 1.2;
}
.section-heading::after {
    content: ''; display: block; width: 48px; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    margin: 14px auto 0; border-radius: 2px;
}
.section-header p {
    font-size: 16px; color: var(--gray-500); max-width: 640px; margin: 0 auto;
    line-height: 1.7;
}
.desktop-only { display: none; }
@media (min-width: 768px) { .desktop-only { display: flex; } }

/* === HAMBURGER === */
.hamburger-btn {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 42px; height: 42px; padding: 10px;
    background: none; border: 1px solid var(--gray-200); border-radius: var(--radius-md); cursor: pointer;
    transition: background var(--transition-fast);
}
.hamburger-btn:hover { background: var(--gray-50); }
.hamburger-btn span { display: block; width: 100%; height: 2px; background: var(--gray-600); border-radius: 1px; }
@media (max-width: 767px) { .hamburger-btn { display: flex; } }

/* === MOBILE MENU === */
.mobile-menu-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4); backdrop-filter: blur(4px);
    z-index: var(--z-mobile-menu);
    opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.mobile-menu-overlay.open { opacity: 1; pointer-events: auto; }
.mobile-menu {
    position: fixed; top: 0; right: 0; bottom: 0; width: 320px;
    background: #fff; z-index: calc(var(--z-mobile-menu) + 1);
    transform: translateX(100%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex; flex-direction: column; overflow-y: auto;
    box-shadow: -8px 0 30px rgba(0,0,0,0.12);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px; border-bottom: 2px solid var(--primary);
    background: var(--gray-50);
}
.mobile-menu-title { font-weight: 800; font-size: 17px; color: var(--primary); }
.mobile-menu-close { background: none; border: none; font-size: 28px; cursor: pointer; color: var(--gray-500); line-height: 1; }
.mobile-menu-nav { padding: 8px 0; }
.mobile-menu-link {
    display: flex; align-items: center; gap: 14px;
    padding: 14px 20px; color: var(--gray-700); text-decoration: none;
    font-size: 15px; font-weight: 500; border-left: 3px solid transparent;
    transition: all var(--transition-fast);
}
.mobile-menu-link:hover, .mobile-menu-link.active {
    color: var(--primary); background: var(--primary-50);
    border-left-color: var(--primary); text-decoration: none;
}
.mobile-menu-link i { width: 20px; text-align: center; color: var(--gray-400); font-size: 14px; }
.mobile-menu-link.active i { color: var(--primary); }
.mobile-menu-contact {
    margin-top: auto; padding: 20px; border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}
.mobile-contact-btn {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; border-radius: var(--radius-md);
    text-decoration: none; font-weight: 600; font-size: 14px;
    margin-bottom: 8px; transition: all var(--transition-fast);
}
.mobile-contact-btn:hover { text-decoration: none; transform: translateY(-1px); }
.mobile-contact-btn.tg { background: #e0f2fe; color: #0284c7; }
.mobile-contact-btn.wa { background: #dcfce7; color: #16a34a; }
.mobile-contact-btn.email { background: var(--primary-50); color: var(--primary); }

/* === PAGE HERO === */
.page-hero {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
    padding: 32px 0 28px;
    border-bottom: 1px solid var(--gray-200);
}
.page-title {
    font-size: 28px; font-weight: 800; color: var(--gray-900);
    margin-bottom: 6px; letter-spacing: -0.02em;
}
.page-title i { color: var(--primary); margin-right: 10px; }
.page-subtitle { font-size: 15px; color: var(--gray-500); }

/* === BREADCRUMB === */
.breadcrumb {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    font-size: 14px; color: var(--gray-400); margin-bottom: 16px;
}
.breadcrumb a { color: var(--blue); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb i { font-size: 10px; color: var(--gray-300); }

/* === FOOTER === */
.footer {
    background: var(--gray-900); color: var(--gray-400);
    padding: 48px 0 24px; font-size: 14px;
    margin-bottom: 56px;
}
@media (min-width: 768px) { .footer { margin-bottom: 0; } }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 32px; margin-bottom: 32px; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; } }
.footer-col h4 {
    color: #fff; font-size: 15px; font-weight: 700;
    margin-bottom: 16px; padding-bottom: 12px;
    border-bottom: 2px solid var(--primary);
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: var(--gray-400); text-decoration: none; font-size: 14px; transition: color var(--transition-fast); }
.footer-col ul a:hover { color: #fff; }
.footer-logo {
    display: flex; align-items: center; gap: 12px;
    font-size: 18px; font-weight: 800; color: #fff;
    margin-bottom: 14px;
}
.footer-description { font-size: 14px; line-height: 1.7; color: var(--gray-400); margin-bottom: 14px; }
.footer-crypto-note {
    margin-top: 14px; padding: 12px 16px;
    background: rgba(192,161,107,0.08); border: 1px solid rgba(192,161,107,0.15);
    border-radius: var(--radius-md); font-size: 13px; color: var(--gold-light);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--gray-500);
}
.footer-social { display: flex; gap: 8px; }
.footer-social a {
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(255,255,255,0.06); color: var(--gray-400);
    display: flex; align-items: center; justify-content: center;
    text-decoration: none; transition: all var(--transition-fast);
}
.footer-social a:hover { background: var(--primary); color: #fff; }

/* === MOBILE BOTTOM NAV === */
.mobile-bottom-nav {
    position: fixed; bottom: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
    border-top: 1px solid var(--gray-200);
    display: flex; justify-content: space-around; padding: 8px 0 env(safe-area-inset-bottom, 4px);
    z-index: var(--z-header);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}
@media (min-width: 768px) { .mobile-bottom-nav { display: none; } }
.bottom-nav-item {
    display: flex; flex-direction: column; align-items: center; gap: 2px;
    text-decoration: none; color: var(--gray-400);
    font-size: 11px; font-weight: 600; padding: 4px 12px;
    transition: color var(--transition-fast);
}
.bottom-nav-item:hover { text-decoration: none; color: var(--primary); }
.bottom-nav-item i { font-size: 18px; }
.bottom-nav-item.active { color: var(--primary); }

/* === ANIMATIONS === */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* === FAQ === */
.faq-section { padding: 56px 0; background: var(--gray-50); }
.faq-list { max-width: 768px; margin: 0 auto; }
.faq-item {
    border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
    margin-bottom: 10px; overflow: hidden; background: #fff;
    transition: all var(--transition-fast);
}
.faq-item:hover { border-color: var(--gray-300); box-shadow: var(--shadow-sm); }
.faq-question {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; padding: 18px 24px; background: none; border: none;
    cursor: pointer; font-weight: 600; font-size: 15px;
    color: var(--gray-800); text-align: left; font-family: var(--font-family);
    transition: color var(--transition-fast);
}
.faq-question i { color: var(--gray-400); font-size: 12px; transition: transform 0.3s, color 0.3s; }
.faq-item.open .faq-question { color: var(--primary); }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s; }
.faq-item.open .faq-answer { max-height: 500px; }
.faq-answer p { padding: 0 24px 18px; font-size: 14px; color: var(--gray-600); line-height: 1.8; }

/* === ORDER CTA BAR === */
.order-cta-bar {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 20px 28px; border-radius: var(--radius-lg);
    margin-top: 32px;
}
.order-cta-text { color: rgba(255,255,255,0.8); font-size: 14px; }
.order-cta-text strong { color: #fff; }
.order-cta-links { display: flex; gap: 10px; flex-wrap: wrap; }
.order-cta-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-md);
    font-size: 13px; font-weight: 600; text-decoration: none;
    background: rgba(255,255,255,0.1); color: #fff;
    border: 1px solid rgba(255,255,255,0.12);
    transition: all var(--transition-fast);
}
.order-cta-btn:hover { background: rgba(255,255,255,0.18); color: #fff; text-decoration: none; }

/* === CERTIFICATIONS === */
.cert-showcase { padding: 56px 0; background: #fff; }
.cert-full-image {
    max-width: 100%; border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}
.cert-individual-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
@media (min-width: 640px) { .cert-individual-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .cert-individual-grid { grid-template-columns: repeat(5, 1fr); } }
.cert-individual-card {
    background: #fff; border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: all var(--transition-normal);
}
.cert-individual-card:hover { border-color: var(--primary-200); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.cert-individual-card img { width: 100%; height: auto; display: block; }
.cert-individual-card .cert-img-label {
    padding: 10px 12px; text-align: center;
    font-size: 12px; font-weight: 700; color: var(--gray-600);
    text-transform: uppercase; letter-spacing: 0.04em;
    background: var(--gray-50); border-top: 1px solid var(--gray-200);
}

/* === DATA TABLES === */
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
.data-table thead { background: var(--gray-50); }
.data-table th {
    padding: 12px 16px; text-align: left; font-weight: 700;
    color: var(--gray-700); font-size: 12px;
    text-transform: uppercase; letter-spacing: 0.05em;
    border-bottom: 2px solid var(--primary-200);
}
.data-table td { padding: 12px 16px; border-bottom: 1px solid var(--gray-100); color: var(--gray-600); }
.data-table tbody tr { transition: background var(--transition-fast); }
.data-table tbody tr:hover { background: var(--primary-50); }

/* === CARDS === */
.pro-card {
    background: #fff; border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: all var(--transition-normal);
}
.pro-card:hover { box-shadow: var(--shadow-lg); }
.pro-card-header {
    padding: 16px 20px; border-bottom: 1px solid var(--gray-100);
    display: flex; align-items: center; justify-content: space-between;
}
.pro-card-header h3 { font-size: 16px; font-weight: 700; color: var(--gray-900); }
.pro-card-body { padding: 20px; }

/* === TAGS === */
.tag {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 4px 10px; font-size: 12px; font-weight: 600;
    border-radius: var(--radius-full); white-space: nowrap;
}
.tag-primary { background: var(--primary-50); color: var(--primary); border: 1px solid var(--primary-200); }
.tag-success { background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0; }
.tag-warning { background: #fffbeb; color: #d97706; border: 1px solid #fde68a; }
.tag-info { background: var(--blue-50); color: var(--blue); border: 1px solid #bfdbfe; }

/* === METRIC CARDS === */
.metric-row { display: flex; gap: 16px; flex-wrap: wrap; }
.metric-card {
    flex: 1; min-width: 140px; padding: 20px;
    background: #fff; border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg); border-top: 3px solid var(--primary);
    text-align: center; transition: all var(--transition-normal);
}
.metric-card:hover { box-shadow: var(--shadow-md); }
.metric-value { display: block; font-size: 28px; font-weight: 800; color: var(--primary); letter-spacing: -0.02em; }
.metric-label { display: block; font-size: 12px; font-weight: 600; color: var(--gray-500); text-transform: uppercase; margin-top: 4px; letter-spacing: 0.04em; }

/* === INFO PANELS === */
.info-panel {
    padding: 16px 20px; border-radius: var(--radius-lg);
    display: flex; align-items: flex-start; gap: 12px;
    font-size: 14px; line-height: 1.7;
}
.info-panel.info { background: var(--blue-50); border: 1px solid #bfdbfe; color: var(--blue-dark); }
.info-panel.warning { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; }
.info-panel.success { background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46; }

/* === TYPOGRAPHY === */
.text-mono { font-family: var(--font-mono); font-size: 13px; }
.text-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gray-500); }
.text-value { font-size: 15px; font-weight: 700; color: var(--gray-800); }
.text-muted { color: var(--gray-500); }
.text-primary { color: var(--primary); }
.text-red { color: var(--red); }
.text-success { color: var(--success); }
.divider { height: 1px; background: var(--gray-200); margin: 24px 0; }

/* === RESPONSIVE — MOBILE FIRST === */

/* Tablet */
@media (max-width: 1023px) {
    .container { padding: 0 16px; }
}

/* Mobile */
@media (max-width: 767px) {
    html { font-size: 15px; }
    .container { padding: 0 16px; }

    /* Compact header */
    .header-main { padding: 10px 0; gap: 12px; }
    .logo-icon { width: 38px; height: 38px; }
    .logo-gl { font-size: 12px; }
    .logo-text { font-size: 17px; }
    .logo-text small { font-size: 11px; }
    .logo { gap: 8px; }

    /* Utility bar tighter */
    .utility-bar { padding: 6px 0; font-size: 11px; }
    .utility-bar .crypto-badge { font-size: 10px; padding: 2px 10px; }

    /* Nav bar hidden — hamburger only */
    .nav-bar { display: none; }

    /* Sections tighter */
    .page-hero { padding: 20px 0 16px; }
    .page-title { font-size: 20px; }
    .page-subtitle { font-size: 13px; }
    .section-header { margin-bottom: 24px; }
    .section-heading { font-size: 22px; }
    .section-heading::after { width: 36px; margin-top: 10px; }
    .section-header p { font-size: 14px; }

    /* Buttons */
    .btn { padding: 9px 18px; font-size: 13px; }
    .btn-lg { padding: 12px 24px; font-size: 14px; }
    .btn-sm { padding: 6px 12px; font-size: 12px; }

    /* Order CTA */
    .order-cta-bar { flex-direction: column; text-align: center; padding: 16px; border-radius: var(--radius-lg); }
    .metric-row { flex-direction: column; }

    /* FAQ tighter */
    .faq-section { padding: 36px 0; }
    .faq-question { padding: 14px 16px; font-size: 14px; }
    .faq-answer p { padding: 0 16px 14px; font-size: 13px; }

    /* Footer compact */
    .footer { padding: 32px 0 16px; font-size: 13px; margin-bottom: 52px; }
    .footer-grid { gap: 24px; margin-bottom: 24px; }
    .footer-col h4 { font-size: 14px; margin-bottom: 12px; padding-bottom: 8px; }
    .footer-bottom { padding-top: 16px; font-size: 11px; }

    /* Mobile bottom nav */
    .mobile-bottom-nav { padding: 6px 0 env(safe-area-inset-bottom, 2px); }
    .bottom-nav-item { font-size: 10px; padding: 2px 8px; }
    .bottom-nav-item i { font-size: 16px; }

    /* Breadcrumb */
    .breadcrumb { font-size: 12px; margin-bottom: 12px; }

    /* Data tables scroll */
    .data-table { font-size: 13px; }
    .data-table th, .data-table td { padding: 8px 10px; }

    /* Cards tighter */
    .pro-card-header { padding: 12px 14px; }
    .pro-card-body { padding: 14px; }

    /* Cert showcase */
    .cert-showcase { padding: 36px 0; }
    .cert-individual-grid { gap: 10px; }
    .cert-individual-card .cert-img-label { padding: 6px 8px; font-size: 10px; }
}

/* Small phones */
@media (max-width: 374px) {
    html { font-size: 14px; }
    .container { padding: 0 12px; }
    .header-main { padding: 8px 0; }
    .logo-icon { width: 34px; height: 34px; }
    .logo-text { font-size: 15px; }
    .section-heading { font-size: 20px; }
}

/* Hide old elements */
.crypto-banner { display: none; }
.trust-bar { display: none; }