/* =====================================================
   DRUGHUB - LABORATORY THEME
   Design System Variables
   ===================================================== */

:root {
    /* ===== COLOR PALETTE ===== */
    --color-primary: #00B4D8;
    --color-primary-light: #48CAE4;
    --color-primary-dark: #0096C7;

    --color-secondary: #2EC4B6;
    --color-secondary-light: #5EEAD4;
    --color-secondary-dark: #14B8A6;

    --color-accent: #7B68EE;
    --color-accent-light: #9D8DF1;
    --color-accent-dark: #6366F1;

    --color-bg: #0A1628;
    --color-bg-light: #0F2140;
    --color-surface: #162A4A;
    --color-surface-light: #1E3A5F;

    --color-text: #E8F4F8;
    --color-text-secondary: #A3C4D4;
    --color-muted: #6B8FA8;

    --color-border: rgba(0, 180, 216, 0.2);
    --color-border-light: rgba(0, 180, 216, 0.1);

    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;
    --color-verified: #22C55E;

    /* ===== TYPOGRAPHY ===== */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-display: 'Orbitron', var(--font-primary);

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-md: 1.125rem;
    --text-lg: 1.25rem;
    --text-xl: 1.5rem;
    --text-2xl: 1.875rem;
    --text-3xl: 2.25rem;
    --text-4xl: 3rem;
    --text-5xl: 4rem;

    --weight-normal: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;
    --weight-black: 900;

    --leading-tight: 1.2;
    --leading-normal: 1.5;
    --leading-relaxed: 1.7;

    /* ===== SPACING ===== */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* ===== BORDERS & RADIUS ===== */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* ===== SHADOWS ===== */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(0, 180, 216, 0.3);
    --shadow-glow-lg: 0 0 40px rgba(0, 180, 216, 0.4);
    --shadow-verified: 0 0 15px rgba(34, 197, 94, 0.4);

    /* ===== TRANSITIONS ===== */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* ===== Z-INDEX ===== */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* =====================================================
   BASE STYLES
   ===================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    overflow-x: hidden;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}

::selection {
    background: var(--color-primary);
    color: var(--color-bg);
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-lg);
    }
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

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

/* =====================================================
   MOLECULAR GRID BACKGROUND
   ===================================================== */

.molecular-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.molecular-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 2px 2px, rgba(0, 180, 216, 0.15) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridFloat 30s linear infinite;
}

@keyframes gridFloat {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}

.molecule {
    position: absolute;
    opacity: 0.1;
    animation: moleculeFloat 20s ease-in-out infinite;
}

.molecule-1 { top: 10%; left: 5%; animation-delay: 0s; }
.molecule-2 { top: 60%; right: 10%; animation-delay: -5s; }
.molecule-3 { bottom: 20%; left: 15%; animation-delay: -10s; }

@keyframes moleculeFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(20px, -30px) rotate(90deg); }
    50% { transform: translate(-10px, -50px) rotate(180deg); }
    75% { transform: translate(30px, -20px) rotate(270deg); }
}

/* =====================================================
   TYPOGRAPHY - LABORATORY STYLE
   ===================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
    color: var(--color-text);
}

h1 { font-size: var(--text-4xl); letter-spacing: -0.02em; }
h2 { font-size: var(--text-3xl); letter-spacing: -0.01em; }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-md); }

.text-scientific {
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

.formula {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-primary);
    background: rgba(0, 180, 216, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.verified-text {
    color: var(--color-verified);
    font-weight: var(--weight-semibold);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

/* =====================================================
   BUTTONS - LABORATORY STYLE
   ===================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-lg);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: rgba(0, 180, 216, 0.1);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-verified) 0%, #16A34A 100%);
    color: white;
    box-shadow: var(--shadow-verified);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(34, 197, 94, 0.5);
}

.btn-lab {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    position: relative;
}

.btn-lab::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.btn-lab:hover::after { transform: scaleX(1); }
.btn-lab:hover { border-color: var(--color-primary); }

.btn-sm { padding: var(--space-sm) var(--space-md); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-lg) var(--space-2xl); font-size: var(--text-md); }
.btn-block { width: 100%; }

/* =====================================================
   CARDS - LABORATORY STYLE
   ===================================================== */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

.lab-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
}

.lab-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
}

.lab-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    background: rgba(0, 180, 216, 0.05);
}

.lab-card-body { padding: var(--space-lg); }
.lab-card-footer {
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--color-border);
}

/* =====================================================
   HEADER - LABORATORY THEME
   ===================================================== */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header-line {
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent), var(--color-primary));
    background-size: 300% 100%;
    animation: gradientMove 5s linear infinite;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
    gap: var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
}

.logo-mark {
    position: relative;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon { font-size: 1.5rem; position: relative; z-index: 1; }

.logo-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    animation: logoRing 3s ease-in-out infinite;
}

@keyframes logoRing {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0; }
}

.logo-text { display: flex; flex-direction: column; }
.logo-name { font-size: var(--text-lg); font-weight: var(--weight-bold); color: var(--color-text); letter-spacing: 0.05em; }
.logo-name .highlight { color: var(--color-primary); }
.logo-tag { font-size: var(--text-xs); font-family: var(--font-mono); color: var(--color-verified); letter-spacing: 0.1em; }

.main-nav { display: none; }
@media (min-width: 768px) { .main-nav { display: block; } }

.nav-list { display: flex; gap: var(--space-xs); list-style: none; }

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary);
    background: rgba(0, 180, 216, 0.1);
}

.header-badge {
    display: none;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--color-verified);
    border-radius: var(--radius-full);
}

@media (min-width: 576px) { .header-badge { display: flex; } }

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-verified);
    border-radius: 50%;
    animation: badgePulse 2s infinite;
}

@keyframes badgePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.badge-text {
    font-size: var(--text-xs);
    font-family: var(--font-mono);
    font-weight: var(--weight-bold);
    color: var(--color-verified);
}

.mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

@media (min-width: 768px) { .mobile-toggle { display: none; } }

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 999;
}

.mobile-menu.active { transform: translateY(0); opacity: 1; }

.mobile-link {
    display: block;
    padding: var(--space-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.mobile-link:last-child { border-bottom: none; }
.mobile-link:hover, .mobile-link.active { color: var(--color-primary); background: rgba(0, 180, 216, 0.05); }

/* =====================================================
   HERO SECTION - LABORATORY THEME
   ===================================================== */

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-4xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(0, 180, 216, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 700px; }

.lab-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--color-verified);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-xl);
    animation: badgePulseGlow 3s ease-in-out infinite;
}

@keyframes badgePulseGlow {
    0%, 100% { box-shadow: 0 0 10px rgba(34, 197, 94, 0.3); }
    50% { box-shadow: 0 0 25px rgba(34, 197, 94, 0.5); }
}

.badge-icon { font-size: var(--text-lg); }
.badge-text-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-verified);
    letter-spacing: 0.05em;
}

.badge-status {
    width: 8px;
    height: 8px;
    background: var(--color-verified);
    border-radius: 50%;
    animation: statusBlink 1.5s infinite;
}

@keyframes statusBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title { margin-bottom: var(--space-lg); }

.title-sub {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-muted);
    letter-spacing: 0.3em;
    margin-bottom: var(--space-sm);
    font-family: var(--font-mono);
}

.title-main {
    display: block;
    font-size: clamp(3rem, 10vw, 5rem);
    font-weight: var(--weight-black);
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.title-main .highlight {
    color: var(--color-primary);
    position: relative;
}

.title-main .highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-primary);
    opacity: 0.3;
}

.title-tag {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-primary);
    padding: var(--space-xs) var(--space-md);
    background: rgba(0, 180, 216, 0.1);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-xl);
    max-width: 500px;
}

.hero-stats {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 180, 216, 0.1);
    border-radius: var(--radius-md);
    font-size: var(--text-xl);
}

.stat-value {
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    color: var(--color-primary);
    font-family: var(--font-mono);
}

.stat-unit { font-size: var(--text-lg); color: var(--color-primary); }

.stat-label {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }

.hero-visual {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    display: none;
}

@media (min-width: 1200px) { .hero-visual { display: block; } }

.test-tube-container { position: relative; width: 80px; }

.test-tube {
    width: 60px;
    height: 200px;
    background: rgba(0, 180, 216, 0.1);
    border: 2px solid var(--color-primary);
    border-radius: 0 0 30px 30px;
    position: relative;
    overflow: hidden;
}

.tube-liquid {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: var(--fill);
    background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: 0 0 28px 28px;
    animation: liquidWave 3s ease-in-out infinite;
}

@keyframes liquidWave {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.tube-bubbles {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
}

.bubble {
    position: absolute;
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: bubbleRise 2s infinite;
}

.bubble:nth-child(1) { left: -10px; animation-delay: 0s; }
.bubble:nth-child(2) { left: 0; animation-delay: 0.5s; }
.bubble:nth-child(3) { left: 10px; animation-delay: 1s; }

@keyframes bubbleRise {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(-150px); opacity: 0; }
}

.tube-label {
    text-align: center;
    margin-top: var(--space-md);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-primary);
    font-weight: var(--weight-bold);
}

/* =====================================================
   VERIFICATION SECTION
   ===================================================== */

.verification-section {
    padding: var(--space-4xl) 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 50%, var(--color-bg) 100%);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.section-title { font-size: var(--text-3xl); margin-bottom: var(--space-md); }
.section-desc { color: var(--color-text-secondary); line-height: var(--leading-relaxed); }

.verification-form-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto var(--space-3xl);
}

@media (min-width: 768px) {
    .verification-form-container { grid-template-columns: 1.5fr 1fr; }
}

.form-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-verified), var(--color-primary));
}

.form-header { text-align: center; margin-bottom: var(--space-xl); }

.form-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-md);
    background: rgba(34, 197, 94, 0.1);
    border: 2px solid var(--color-verified);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.form-header h3 { font-size: var(--text-xl); margin-bottom: var(--space-xs); }
.form-header p { color: var(--color-muted); font-size: var(--text-sm); }

.code-input-group {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.code-digit {
    width: 45px;
    height: 55px;
    text-align: center;
    font-size: var(--text-xl);
    font-family: var(--font-mono);
    font-weight: var(--weight-bold);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    text-transform: uppercase;
    transition: all var(--transition-fast);
}

.code-digit:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.2);
    outline: none;
}

.code-digit.filled {
    border-color: var(--color-verified);
    background: rgba(34, 197, 94, 0.05);
}

.code-separator { font-size: var(--text-xl); color: var(--color-muted); margin: 0 var(--space-xs); }

.form-footer { margin-top: var(--space-lg); text-align: center; }

.form-footer p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-muted);
}

.recent-verifications {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
}

.recent-title {
    font-size: var(--text-md);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.verification-list { display: flex; flex-direction: column; gap: var(--space-md); }

.verification-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.verification-item:hover { background: rgba(0, 180, 216, 0.05); }

.item-status {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: var(--text-sm);
    font-weight: var(--weight-bold);
}

.verification-item.verified .item-status {
    background: rgba(34, 197, 94, 0.2);
    color: var(--color-verified);
}

.item-info { flex: 1; }
.item-code { display: block; font-family: var(--font-mono); font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.item-time { font-size: var(--text-xs); color: var(--color-muted); }

.item-badge {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.item-badge.verified {
    background: rgba(34, 197, 94, 0.1);
    color: var(--color-verified);
}

.verification-process {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
}

.process-title { text-align: center; font-size: var(--text-xl); margin-bottom: var(--space-2xl); }

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.process-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: -10px;
    right: 10px;
    font-size: var(--text-3xl);
    font-weight: var(--weight-black);
    font-family: var(--font-mono);
    color: var(--color-primary);
    opacity: 0.2;
}

.step-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    background: rgba(0, 180, 216, 0.1);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.process-step h4 { font-size: var(--text-md); margin-bottom: var(--space-xs); }
.process-step p { font-size: var(--text-sm); color: var(--color-muted); }

.process-connector {
    display: none;
    flex-direction: column;
    align-items: center;
    padding-top: 30px;
}

@media (min-width: 992px) { .process-connector { display: flex; } }

.connector-line {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.connector-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    margin-top: -5px;
}

/* =====================================================
   FEATURES SECTION
   ===================================================== */

.features-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 180, 216, 0.05) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.feature-card:hover::before { opacity: 1; }

.feature-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.feature-icon-wrap {
    position: relative;
    width: 70px;
    height: 70px;
    margin-bottom: var(--space-lg);
}

.icon-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-lg);
    opacity: 0.1;
}

.feature-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
}

.feature-title { font-size: var(--text-lg); margin-bottom: var(--space-sm); }

.feature-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-md);
}

.feature-stats {
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.mini-stat { display: flex; align-items: baseline; gap: var(--space-sm); }
.mini-value { font-size: var(--text-xl); font-weight: var(--weight-bold); color: var(--color-primary); font-family: var(--font-mono); }
.mini-label { font-size: var(--text-xs); color: var(--color-muted); text-transform: uppercase; }

/* =====================================================
   MIRRORS SECTION
   ===================================================== */

.mirrors-section {
    padding: var(--space-4xl) 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
}

.mirrors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.mirror-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.mirror-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.mirror-card.primary {
    border-color: var(--color-verified);
}

.mirror-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 180, 216, 0.05);
    border-bottom: 1px solid var(--color-border);
}

.mirror-badge {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.mirror-badge.primary {
    background: var(--color-verified);
    color: white;
}

.mirror-badge.secondary {
    background: var(--color-primary);
    color: white;
}

.mirror-status {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-xs);
    font-family: var(--font-mono);
}

.mirror-status.online { color: var(--color-verified); }

.status-dot {
    width: 8px;
    height: 8px;
    background: currentColor;
    border-radius: 50%;
    animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.mirror-body { padding: var(--space-lg); }

.onion-display {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.onion-icon { font-size: 1.5rem; }

.onion-url {
    flex: 1;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-primary);
    word-break: break-all;
}

.mirror-footer {
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--color-border);
}

.verified-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-sm);
    color: var(--color-verified);
}

/* =====================================================
   FOOTER - LABORATORY THEME
   ===================================================== */

.main-footer {
    position: relative;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) 0 var(--space-xl);
    overflow: hidden;
}

.footer-molecules {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 2px 2px, rgba(0, 180, 216, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
    .footer-top { grid-template-columns: 1.2fr 2fr; }
}

.footer-brand { max-width: 350px; }

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-logo .logo-icon { font-size: 1.5rem; }
.footer-logo .logo-name { font-size: var(--text-xl); font-weight: var(--weight-bold); }
.footer-logo .highlight { color: var(--color-primary); }

.footer-desc {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-lg);
}

.footer-stats { display: flex; gap: var(--space-xl); }
.footer-stats .stat { text-align: center; }

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-xl);
}

.footer-col h4 {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: var(--space-sm); }

.footer-col a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

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

.footer-pgp {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-lg);
}

.pgp-box {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.pgp-icon { font-size: 1.5rem; }
.pgp-content { flex: 1; min-width: 200px; }
.pgp-label { display: block; font-size: var(--text-xs); color: var(--color-muted); margin-bottom: var(--space-xs); }
.pgp-value { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-primary); background: none; word-break: break-all; }

.copy-btn {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover { border-color: var(--color-primary); }

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

@media (min-width: 576px) {
    .footer-bottom { flex-direction: row; justify-content: space-between; }
}

.copyright { font-size: var(--text-sm); color: var(--color-muted); }

.footer-badges { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.footer-badges .badge {
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--color-muted);
}

/* =====================================================
   GUIDES PAGE
   ===================================================== */

.page-guides .main-content { padding-top: 80px; }

.page-guides .page-hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
    background: linear-gradient(180deg, rgba(0, 180, 216, 0.05) 0%, var(--color-bg) 100%);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-muted);
    margin-bottom: var(--space-md);
}

.breadcrumb a { color: var(--color-primary); }

.page-title {
    font-size: var(--text-3xl);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.page-desc { color: var(--color-text-secondary); max-width: 500px; }

.guide-nav-section {
    padding: var(--space-lg) 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 68px;
    z-index: 100;
}

.guide-nav {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    padding-bottom: var(--space-xs);
}

.guide-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.guide-nav-item:hover { border-color: var(--color-primary); color: var(--color-primary); }

.guide-section { padding: var(--space-2xl) 0; }

.guide-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.guide-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(0, 180, 216, 0.05);
    border-bottom: 1px solid var(--color-border);
}

.guide-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    font-size: 1.5rem;
}

.guide-title-wrap h2 { font-size: var(--text-xl); margin-bottom: var(--space-xs); }

.guide-tag {
    display: inline-block;
    padding: 2px var(--space-sm);
    background: var(--color-primary);
    color: white;
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.guide-tag.critical { background: var(--color-error); }

.guide-content { padding: var(--space-xl); }

.guide-intro {
    padding: var(--space-lg);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
}

.guide-intro p { color: var(--color-text-secondary); line-height: var(--leading-relaxed); }

.guide-step {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
}

.guide-step:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.step-num {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    font-weight: var(--weight-bold);
    border-radius: 50%;
    flex-shrink: 0;
}

.step-content { flex: 1; }
.step-content h3 { font-size: var(--text-lg); margin-bottom: var(--space-sm); }
.step-content p { color: var(--color-text-secondary); margin-bottom: var(--space-md); }

.code-box {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.code-box code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-primary);
    word-break: break-all;
}

.copy-sm {
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.copy-sm:hover { opacity: 1; }

.warning-box {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--color-warning);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-warning);
}

.check-list { list-style: none; }

.check-list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--color-text-secondary);
}

.check-list li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-verified);
    font-weight: var(--weight-bold);
}

.onion-box {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-verified);
    border-radius: var(--radius-md);
}

.onion-box code { flex: 1; font-family: var(--font-mono); font-size: var(--text-sm); color: var(--color-verified); word-break: break-all; }

.safety-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.safety-item { padding: var(--space-lg); border-radius: var(--radius-lg); }

.safety-item.do { background: rgba(34, 197, 94, 0.1); border: 1px solid var(--color-verified); }
.safety-item.dont { background: rgba(239, 68, 68, 0.1); border: 1px solid var(--color-error); }

.safety-item h4 { margin-bottom: var(--space-md); font-size: var(--text-md); }
.safety-item ul { list-style: none; }
.safety-item li { padding: var(--space-sm) 0; font-size: var(--text-sm); color: var(--color-text-secondary); }

.phishing-warning {
    padding: var(--space-lg);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-lg);
}

.warning-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.warning-header h4 { color: var(--color-error); }
.phishing-warning p { color: var(--color-text-secondary); line-height: var(--leading-relaxed); }

/* =====================================================
   UTILITY CLASSES
   ===================================================== */

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-verified { color: var(--color-verified); }
.text-muted { color: var(--color-muted); }
.mb-0 { margin-bottom: 0; }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-lg { margin-top: var(--space-lg); }