/* Main Stylesheet - Genealogy App v8.0 */

:root {
    /* Light Theme Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --background: #ffffff;
    --surface: #f8fafc;
    --card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --shadow: rgba(0, 0, 0, 0.1);
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    /* Z-index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Dark Theme */
[data-theme="dark"] {
    --primary: #818cf8;
    --primary-dark: #6366f1;
    --primary-light: #a5b4fc;
    --secondary: #f472b6;
    --background: #0f172a;
    --surface: #1e293b;
    --card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-md);
}

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

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

/* Splash Screen */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeOut 0.5s ease-out 2s forwards;
}

.splash-content {
    text-align: center;
    color: white;
}

.splash-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s infinite;
}

.splash-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: 0 1px 3px var(--shadow);
}

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

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 600;
}

    .app-brand i {
        color: var(--primary);
    }

.version-badge {
    background: var(--primary);
    color: white;
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.icon-btn {
    background: none;
    border: none;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

    .icon-btn:hover {
        background: var(--surface);
        color: var(--primary);
    }

/* Global Search */
.global-search {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    animation: slideDown var(--transition-base);
}

.search-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-2xl);
    padding-left: 2.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    background: var(--card);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

    .search-input:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    }

.search-close {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
}

.search-results {
    max-width: 600px;
    margin: var(--spacing-md) auto 0;
    max-height: 400px;
    overflow-y: auto;
}

/* Navigation */
.app-nav {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 60px;
    z-index: var(--z-sticky);
}

.nav-content {
    display: flex;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

    .nav-content::-webkit-scrollbar {
        display: none;
    }

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

    .nav-item:hover {
        color: var(--primary);
        background: var(--surface);
    }

    .nav-item.active {
        color: var(--primary);
        border-bottom-color: var(--primary);
    }

    .nav-item i {
        font-size: 1.25rem;
    }

/* Main Content */
.app-main {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* Sections */
.section {
    display: none;
    animation: fadeIn var(--transition-base);
}

    .section.active {
        display: block;
    }

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

    .section-header h2 {
        margin: 0;
    }

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: all var(--transition-base);
    cursor: pointer;
}

    .stat-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px var(--shadow);
    }

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-content h3 {
    font-size: 2rem;
    margin: 0;
    color: var(--text-primary);
}

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

/* Quick Actions */
.quick-actions {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

    .quick-actions h3 {
        margin-bottom: var(--spacing-lg);
    }

.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.action-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

    .action-card:hover {
        background: var(--primary);
        color: white;
        transform: translateY(-2px);
    }

    .action-card i {
        font-size: 1.5rem;
    }

/* Recent Activities */
.recent-activities {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.activity-list {
    max-height: 300px;
    overflow-y: auto;
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 12px var(--shadow);
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

    .fab:hover {
        transform: scale(1.1);
        box-shadow: 0 6px 20px var(--shadow);
    }

    .fab:active {
        transform: scale(0.95);
    }

/* Utilities */
.text-muted {
    color: var(--text-muted);
}

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

.d-none {
    display: none;
}

.d-grid {
    display: grid;
}

.gap-2 {
    gap: var(--spacing-md);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

    50% {
        transform: scale(1.05);
    }
}