/* =============================================================================
   D&D Campaign Manager - Main Stylesheet
   Created: September 26, 2025
   Description: Modern, responsive CSS for D&D web application
   ============================================================================= */

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

:root {
    /* D&D Color Palette */
    --primary-red: #c41e3a;
    --primary-gold: #d4af37;
    --dark-red: #8b0000;
    --parchment: #f4f1e8;
    --dark-brown: #4a4238;
    --light-brown: #8b7355;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --black: #000000;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Typography */
    --font-family-primary: 'Cinzel', 'Times New Roman', serif;
    --font-family-secondary: 'Open Sans', 'Arial', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    --font-size-title: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-color: #dee2e6;
    --surface: #f8f9fa;
    --text-primary: #343a40;
    --accent: #c41e3a;
}

/* Google Fonts removed for standalone deployment — using system font fallbacks (defined in :root above) */

/* Base Typography */
body {
    font-family: var(--font-family-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark-gray);
    background: linear-gradient(135deg, var(--parchment) 0%, #e8dcc0 100%);
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--dark-red);
}

h1 { font-size: var(--font-size-title); }
h2 { font-size: var(--font-size-xxl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

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

/* Navigation */
.navbar {
    background: linear-gradient(90deg, var(--primary-red) 0%, var(--dark-red) 100%);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-gold);
    text-decoration: none;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
}

/* Navigation active state */
.nav-links a.active {
    color: var(--accent);
    font-weight: 600;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary-gold);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    border-bottom: 2px solid var(--primary-gold);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-family: var(--font-family-primary);
    color: var(--primary-red);
    margin-bottom: var(--spacing-sm);
}

.card-subtitle {
    color: var(--gray);
    font-size: var(--font-size-sm);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-secondary);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 120px;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--dark-red) 0%, var(--primary-red) 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--primary-gold);
    color: var(--dark-brown);
}

.btn-secondary:hover {
    background: #b8941f;
    transform: translateY(-1px);
}

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

.btn-warning {
    background: var(--warning);
    color: var(--dark-brown);
}

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-width: 80px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    min-width: 150px;
}

/* Forms */
.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section h3 {
    margin-bottom: var(--spacing-md);
    color: var(--accent);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--surface);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(114, 137, 218, 0.2);
}

.form-group input:invalid {
    border-color: var(--danger);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

/* Card footer styling consistency */
.card-footer {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

.card-footer .btn {
    min-width: 120px;
}

/* Button size consistency */
.btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    min-height: 48px;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.table th {
    background: var(--primary-gold);
    color: var(--dark-brown);
    font-weight: 600;
    font-family: var(--font-family-primary);
}

.table tr:hover {
    background-color: rgba(212, 175, 55, 0.1);
}

/* Reference table styling */
.reference-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.reference-table th,
.reference-table td {
    padding: 12px 8px;
    border: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
    height: 48px;
    overflow-wrap: break-word;
}

.reference-table th {
    background-color: var(--surface);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
    z-index: 1;
}

.reference-table tbody tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.02);
}

.reference-table tbody tr:hover {
    background-color: rgba(114, 137, 218, 0.1);
}

.reference-table td strong {
    color: var(--accent);
}

/* Responsive table container */
#referenceContent {
    max-height: 500px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

/* Character Sheet Specific Styles */
.character-header {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
    color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.character-name {
    font-size: 2.5rem;
    font-family: var(--font-family-primary);
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.character-details {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

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

.character-detail-label {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
}

.character-detail-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* Ability Scores */
.ability-scores {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.ability-score {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    text-align: center;
    border: 2px solid var(--primary-gold);
}

.ability-name {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--dark-brown);
    text-transform: uppercase;
    margin-bottom: var(--spacing-xs);
}

.ability-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: var(--spacing-xs);
}

.ability-modifier {
    font-size: var(--font-size-sm);
    color: var(--gray);
}

/* Equipment Grid */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.equipment-section {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--primary-gold);
}

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

.equipment-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid #f0f0f0;
}

.equipment-item:last-child {
    border-bottom: none;
}

.equipment-name {
    font-weight: 600;
    color: var(--dark-brown);
}

.equipment-details {
    font-size: var(--font-size-sm);
    color: var(--gray);
}

.equipment-equipped {
    background: var(--success);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
}

/* Skills List */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background: var(--white);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid transparent;
}

.skill-item.proficient {
    border-left-color: var(--success);
}

.skill-item.expertise {
    border-left-color: var(--primary-gold);
}

.skill-name {
    font-weight: 600;
}

.skill-bonus {
    font-family: 'Courier New', monospace;
    font-weight: 700;
    color: var(--primary-red);
}

/* Spells */
.spell-level {
    margin-bottom: var(--spacing-lg);
}

.spell-level-title {
    background: var(--primary-gold);
    color: var(--dark-brown);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.spell-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.spell-item {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--info);
}

.spell-item.prepared {
    border-left-color: var(--primary-gold);
}

.spell-name {
    font-weight: 600;
    color: var(--dark-brown);
    margin-bottom: var(--spacing-xs);
}

.spell-school {
    font-size: var(--font-size-sm);
    color: var(--gray);
    font-style: italic;
}

/* Status Effects */
.status-effects {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.status-effect {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.status-effect.buff {
    background: var(--success);
    color: var(--white);
}

.status-effect.debuff {
    background: var(--danger);
    color: var(--white);
}

.status-effect.condition {
    background: var(--warning);
    color: var(--dark-brown);
}

/* GM Dashboard Specific */
.character-summary {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
    transition: all 0.3s ease;
}

.character-summary:hover {
    background: var(--light-gray);
    transform: translateX(4px);
}

.character-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--dark-brown);
}

.character-info h4 {
    margin-bottom: var(--spacing-xs);
}

.character-meta {
    font-size: var(--font-size-sm);
    color: var(--gray);
}

/* Player Handbook Specific */
.handbook-nav {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.handbook-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.handbook-nav a {
    color: var(--primary-red);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
}

.handbook-nav a:hover {
    background: var(--primary-gold);
    color: var(--dark-brown);
}

.rule-section {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.rule-example {
    background: var(--light-gray);
    border-left: 4px solid var(--info);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-radius: var(--border-radius-sm);
}

.dice-notation {
    font-family: 'Courier New', monospace;
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
}

/* =====================================
   NOTIFICATIONS
   ===================================== */

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    color: white;
    font-weight: 600;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease-out;
    max-width: 400px;
}

.notification.success {
    background-color: var(--success);
    border-left: 4px solid rgba(255, 255, 255, 0.3);
}

.notification.error {
    background-color: var(--danger);
    border-left: 4px solid rgba(255, 255, 255, 0.3);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* =====================================
   RESPONSIVE DESIGN
   ===================================== */

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav-links {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .ability-scores {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .character-details {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .character-summary {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .handbook-nav ul {
        flex-direction: column;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* Loading and Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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