/* Explodential - Professional Dark Theme CSS */

:root {
    /* Dark theme colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #1a1f2e;
    --bg-dark-light: #0f172a;
    --bg-dark-custom: #111827;
    
    /* Text colors */
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #64748b;
    --text-light-muted: #94a3b8;
    
    /* Accent colors */
    --primary: #00d4ff;
    --primary-hover: #0891b2;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Border colors */
    --border-color: #334155;
    --border-light: #475569;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
}

/* Base styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.display-4 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.display-5 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}

/* Layout */
.main-content {
    min-height: 100vh;
}

.container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* 2025 SaaS Header */
.saas-header {
    background: #000000;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border: none;
    box-shadow: none;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 32px;
    height: 80px;
}

.header-brand {
    flex: 1;
}

.brand-text {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    letter-spacing: -0.5px;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.brand-text:hover {
    color: #ffffff;
    text-decoration: none;
}

.header-cta {
    flex: 0 0 auto;
}

.cta-button {
    background: var(--primary);
    color: #000000;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.15s ease;
    border: none;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.cta-button:hover {
    background: #00bfea;
    color: #000000;
    text-decoration: none;
    transform: translateY(-1px);
}

/* Buttons - 2025 SaaS Style */
.btn {
    font-weight: 600;
    border-radius: 6px;
    transition: all 0.15s ease;
    border: none;
    font-size: 15px;
    padding: 12px 24px;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.btn-primary {
    background: var(--primary);
    color: #000000;
    font-weight: 600;
}

.btn-primary:hover {
    background: #00bfea;
    color: #000000;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.btn-outline-primary {
    border: 1px solid #374151;
    color: #9ca3af;
    background: transparent;
}

.btn-outline-primary:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-outline-secondary {
    border: 1px solid rgba(52, 65, 85, 0.8);
    color: var(--text-secondary);
    background: transparent;
}

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

/* Form Controls */
.form-control {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background-color: var(--bg-secondary);
    border-color: var(--primary);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.bg-dark-light {
    background-color: var(--bg-dark-light) !important;
}

.bg-dark-custom {
    background-color: var(--bg-dark-custom) !important;
}

.text-light {
    color: var(--text-primary) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-visual {
    position: relative;
    z-index: 1;
}

/* Tech Grid */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 400px;
    margin: 0 auto;
}

.grid-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.grid-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.grid-item .feather-icon {
    width: 32px;
    height: 32px;
    color: var(--primary);
    margin-bottom: 10px;
}

.grid-item span {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Value Props */
.value-props {
    padding: var(--section-padding);
    background: var(--bg-dark-light);
}

.value-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    height: 100%;
}

.value-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50%;
}

.feather-icon-lg {
    width: 32px;
    height: 32px;
}

.feather-icon-xl {
    width: 64px;
    height: 64px;
}

/* Social Proof */
.social-proof {
    padding: var(--section-padding);
}

.stats-row {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Newsletter Preview */
.newsletter-preview {
    padding: var(--section-padding);
}

.newsletter-preview-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.newsletter-preview-card .card-header {
    background: var(--bg-dark-light);
    border-bottom: 1px solid var(--border-color);
    padding: 20px;
}

.newsletter-preview-card .card-body {
    background: var(--bg-secondary);
    padding: 30px;
}

.section-preview {
    margin-bottom: 30px;
}

.section-preview h6 {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.preview-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.preview-list li {
    background: var(--bg-dark-light);
    border-left: 3px solid var(--primary);
    padding: 12px 16px;
    margin-bottom: 8px;
    border-radius: 6px;
    font-size: 0.9rem;
}

/* Form Validation */
.email-validation {
    transition: all 0.3s ease;
}

.email-validation.valid {
    border-color: var(--success) !important;
}

.email-validation.invalid {
    border-color: var(--danger) !important;
}

.validation-message {
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.validation-message.valid {
    color: var(--success);
}

.validation-message.invalid {
    color: var(--danger);
}

/* Thank You Page */
.thank-you-section {
    padding: var(--section-padding);
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.thank-you-content {
    text-align: center;
}

.step-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
}

.step-card:hover {
    border-color: var(--primary);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    margin-bottom: 10px;
}

/* Admin Styles */
.admin-login-body {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.login-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.admin-dashboard {
    padding: 40px 0;
}

.dashboard-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-content .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.stat-content .stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.dashboard-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 30px;
}

.section-title {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.content-item {
    background: var(--bg-dark-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.content-info {
    flex: 1;
}

.content-title {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95rem;
    line-height: 1.4;
}

.content-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.content-meta .badge {
    font-size: 0.75rem;
}

.content-source,
.content-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.content-summary {
    font-size: 0.85rem;
    color: var(--text-light-muted);
    line-height: 1.4;
}

.content-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

/* Archive Page */
.archive-section {
    padding: var(--section-padding);
}

.archive-header {
    margin-bottom: 60px;
}

.archive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.archive-card .card {
    transition: all 0.3s ease;
}

.archive-card .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.content-stats {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.content-stat {
    display: flex;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--bg-dark-light);
    padding: 4px 8px;
    border-radius: 4px;
}

.content-stat .feather-icon {
    width: 14px;
    height: 14px;
}

/* Preferences Page */
.preferences-section {
    padding: var(--section-padding);
}

.preferences-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
}

.preference-group {
    background: var(--bg-dark-light);
    border-radius: 8px;
    padding: 20px;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-input:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
}

.subscription-status {
    background: var(--bg-dark-light);
    border: 1px solid var(--border-color);
}

.danger-zone {
    border-top: 1px solid var(--danger) !important;
}

/* Compose Newsletter */
.compose-newsletter {
    padding: 40px 0;
}

.compose-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
}

.content-category {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.category-title {
    color: var(--primary);
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.content-item-select {
    background: var(--bg-dark-light);
    border-radius: 6px;
    padding: 16px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

.content-item-select:hover {
    background: rgba(0, 212, 255, 0.05);
}

.compose-sidebar {
    top: 100px;
}

.selection-summary,
.send-options {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.send-info .info-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

/* 2025 SaaS Footer */
.saas-footer {
    background: transparent;
    margin-top: auto;
    padding: 0;
    border: none;
}

.footer-line {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 32px;
    text-align: center;
    color: #6b7280;
    font-size: 14px;
    font-weight: 400;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    border-top: 1px solid #1f2937;
}

.footer-line a {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.15s ease;
}

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

/* Alerts */
.alert {
    border: none;
    border-radius: 8px;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border-left-color: var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-left-color: var(--danger);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
    border-left-color: var(--info);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border-left-color: var(--warning);
}

/* Loading States */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .stats-row {
        gap: 30px;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
        max-width: 300px;
    }
    
    .archive-grid {
        grid-template-columns: 1fr;
    }
    
    .content-item {
        flex-direction: column;
        align-items: stretch;
    }
    
    .content-actions {
        align-self: flex-start;
    }
    
    /* SaaS Header Mobile */
    .header-container {
        padding: 16px 20px;
        height: 70px;
    }
    
    .brand-text {
        font-size: 24px;
    }
    
    .cta-button {
        padding: 10px 18px;
        font-size: 14px;
    }
    
    .main-content {
        padding-top: 70px;
    }
}

@media (max-width: 576px) {
    :root {
        --section-padding: 60px 0;
        --container-padding: 0 15px;
    }
    
    .hero-section .container {
        padding: 0 15px;
    }
    
    .stats-row {
        flex-direction: column;
        gap: 20px;
    }
    
    .preferences-card,
    .login-card {
        padding: 24px;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Utility Classes */
.text-primary {
    color: var(--primary) !important;
}

.text-success {
    color: var(--success) !important;
}

.text-warning {
    color: var(--warning) !important;
}

.text-danger {
    color: var(--danger) !important;
}

.text-info {
    color: var(--info) !important;
}

.bg-primary {
    background-color: var(--primary) !important;
}

.bg-success {
    background-color: var(--success) !important;
}

.bg-warning {
    background-color: var(--warning) !important;
}

.bg-danger {
    background-color: var(--danger) !important;
}

.bg-info {
    background-color: var(--info) !important;
}

.border-primary {
    border-color: var(--primary) !important;
}

.border-success {
    border-color: var(--success) !important;
}

.border-warning {
    border-color: var(--warning) !important;
}

.border-danger {
    border-color: var(--danger) !important;
}

.border-info {
    border-color: var(--info) !important;
}

/* Focus States */
.btn:focus,
.form-control:focus,
.form-check-input:focus {
    outline: none;
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .btn,
    .alert {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}