/* ═══════════════════════════════════════════════════════════
   ZeroTrace Design System v6.1 - Updated Modal & Grid
   ═══════════════════════════════════════════════════════════ */

   :root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #eff6ff;
    
    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --bg-card: #ffffff;
    
    --text-main: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    --header-height: 72px;
    --radius-lg: 12px;
    
    --success: #10b981;
    --success-bg: #d1fae5;
    --danger: #ef4444;
    --danger-bg: #fee2e2;
    --warning: #f59e0b;
    --warning-bg: #fef3c7;
    --info: #3b82f6;
    --info-bg: #dbeafe;
}

[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-surface: #1e293b;
    --bg-card: #1e293b;
    
    --primary: #38bdf8;
    --primary-dark: #0ea5e9;
    --primary-light: rgba(56, 189, 248, 0.1);

    --text-main: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: rgba(148, 163, 184, 0.2);
    
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5);
}

* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    transition: background-color 0.3s, border-color 0.3s, color 0.3s; 
}

body {
    font-family: 'Tajawal', 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ═══════════════════════════════════════════════════════════
   Header
   ═══════════════════════════════════════════════════════════ */

header {
    height: var(--header-height);
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    backdrop-filter: blur(10px);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--text-main);
}

.logo i {
    color: var(--primary);
    font-size: 1.6rem;
}

.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
}

.theme-toggle:hover {
    background-color: var(--bg-surface);
    color: var(--primary);
    border-color: var(--primary);
}

/* ═══════════════════════════════════════════════════════════
   Hero Section
   ═══════════════════════════════════════════════════════════ */

.hero {
    padding-top: calc(var(--header-height) + 4rem);
    padding-bottom: 6rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.hero-text h1 span {
    background: linear-gradient(135deg, var(--primary) 0%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
    max-width: 100%;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
}

.stat-item i {
    color: var(--primary);
    font-size: 1.2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero Visual */
.hero-visual {
    position: relative;
}

.visual-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
}

.terminal-window {
    background: #1e293b;
    border-radius: 8px;
    overflow: hidden;
}

.terminal-header {
    background: #0f172a;
    padding: 0.75rem;
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.terminal-body {
    padding: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

.log-line {
    margin-bottom: 0.75rem;
    display: flex;
    gap: 0.75rem;
    align-items: center;
    animation: fadeInUp 0.5s ease backwards;
}

.log-line:nth-child(1) { animation-delay: 0.1s; }
.log-line:nth-child(2) { animation-delay: 0.3s; }
.log-line:nth-child(3) { animation-delay: 0.5s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.log-line .time {
    color: #64748b;
}

.log-line .level {
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.75rem;
}

.log-line .level.error {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.log-line .level.alert {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.log-line .ip {
    color: #38bdf8;
}

.log-line .msg {
    color: #f8fafc;
}

.analysis-badge {
    position: absolute;
    bottom: -1rem;
    right: 2rem;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ═══════════════════════════════════════════════════════════
   Features Section
   ═══════════════════════════════════════════════════════════ */

.features {
    padding: 6rem 0;
    background-color: var(--bg-surface);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: right;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    max-width: 100%;
}

/* ═══════════════════════════════════════════════════════════
   How It Works Section
   ═══════════════════════════════════════════════════════════ */

.how-it-works {
    padding: 6rem 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 2rem;
    height: 2rem;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.step-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin: 0 auto 1rem;
}

.step-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.step-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    max-width: 100%;
}

.step-arrow {
    color: var(--primary);
    font-size: 1.5rem;
    text-align: center;
}

/* ═══════════════════════════════════════════════════════════
   Buttons
   ═══════════════════════════════════════════════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    font-size: 1rem;
    transition: all 0.2s;
    background: transparent;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.05rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

[data-theme="dark"] .btn-primary {
    color: #0f172a;
}

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

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: var(--primary-light);
}

/* ═══════════════════════════════════════════════════════════
   Footer
   ═══════════════════════════════════════════════════════════ */

footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-surface);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--text-main);
    margin-bottom: 0.75rem;
}

.footer-logo i {
    color: var(--primary);
}

.footer-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    text-decoration: none;
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: 'Tajawal', 'Inter', sans-serif;
}

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

.footer-link i {
    font-size: 1rem;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ═══════════════════════════════════════════════════════════
   Modal (Updated for Tech Grid)
   ═══════════════════════════════════════════════════════════ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
}

/* New: Large Modal for Tech Grid */
.modal-lg {
    max-width: 800px;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-header h2 {
    font-size: 1.25rem;
    margin: 0;
}

.modal-header i {
    color: var(--primary);
    font-size: 1.4rem;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

/* Tech Grid Styles */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.tech-item {
    background-color: var(--bg-body);
    padding: 1.25rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tech-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.tech-item h4 {
    font-weight: 700;
    color: var(--text-main);
    margin: 0;
}

.tech-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.info-box {
    background-color: var(--success-bg);
    color: #065f46;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

[data-theme="dark"] .info-box {
    background-color: rgba(16, 185, 129, 0.1);
    color: #34d399;
}

.info-box i {
    font-size: 1.1rem;
    margin-top: 0.1rem;
}

.policy-section {
    margin-bottom: 1.5rem;
}

.policy-section h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.policy-section p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    max-width: 100%;
    line-height: 1.6;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    text-align: left;
}

.hidden {
    display: none !important;
}

/* ═══════════════════════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-visual {
        order: -1;
    }

    .hero-stats {
        gap: 1rem;
    }

    .stat-item {
        font-size: 0.85rem;
    }

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

    .step-arrow {
        transform: rotate(90deg);
    }

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

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
}