/**
 * BASE STYLES - Global foundations used by ALL pages
 * Colors, variables, resets, typography, shared elements
 * Load this FIRST before any other CSS
 */

/* ========== CSS VARIABLES ========== */
:root {
    /* Primary Colors */
    --color-primary: #ffb300;
    --color-primary-dark: #ff6a00;
    --color-primary-light: #ffe066;
    
    /* Background Colors */
    --color-bg-main: #2a1c59;
    --color-bg-card: rgba(24, 28, 58, 0.95);
    --color-bg-card-alt: #23234a;
    --color-bg-dark: #181c3a;
    --color-bg-darker: #1e3c72;
    
    /* Text Colors */
    --color-text-primary: #e0e6ed;
    --color-text-secondary: #fff;
    --color-text-muted: #888;
    
    /* Accent Colors */
    --color-success: #27ae60;
    --color-success-dark: #219150;
    --color-danger: #e74c3c;
    --color-info: #3498db;
    --color-info-dark: #2980b9;
    --color-warning: #ff9800;
    
    /* Additional Background Colors */
    --color-bg-gradient-start: #23234a;
    --color-bg-gradient-end: #1e3c72;
    --color-bg-card-gradient-start: #23234a;
    --color-bg-card-gradient-end: #2a2a5a;
    --color-bg-purple-dark: #2a1859;
    
    /* Border Colors */
    --border-primary: rgba(255, 179, 0, 0.2);
    --border-primary-light: rgba(255, 179, 0, 0.15);
    --border-dark: #444;
    
    /* Common Gradients */
    --gradient-card: linear-gradient(135deg, var(--color-bg-card-gradient-start) 0%, var(--color-bg-card-gradient-end) 100%);
    --gradient-card-alt: linear-gradient(135deg, var(--color-bg-card-gradient-start) 60%, var(--color-bg-purple-dark) 100%);
    --gradient-horizontal: linear-gradient(90deg, var(--color-bg-gradient-start) 60%, var(--color-bg-gradient-end) 100%);
    --gradient-primary: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-text: 0 2px 4px rgba(0, 0, 0, 0.6);
    
    /* Common Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 15px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ========== CSS RESET ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    min-height: 100vh;
    background-attachment: fixed;
}

/* ========== TYPOGRAPHY & BODY ========== */
body {
    background: var(--color-bg-main) !important;
    color: var(--color-text-primary);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 18px;
    letter-spacing: 0.01em;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-secondary);
    font-weight: 700;
}

/* ========== CONTAINER ========== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}

/* ========== HEADER (Shared by all pages) ========== */
.header {
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: 8px 20px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-lg);
    gap: 30px;
}

.site-logo {
    height: 70px;
    width: auto;
    margin-right: 20px;
    display: block;
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-spacer {
    width: 70px;
}

.brand-title {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--color-text-secondary);
    letter-spacing: 2px;
    margin: 0;
    text-shadow: 0 2px 4px #000a;
}

.header-controls {
    display: flex;
    gap: 10px;
    margin-left: auto;
}

/* ========== BUTTONS (Shared by all pages) ========== */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-dark);
    font-weight: 700;
}

.btn-primary:hover {
    background: linear-gradient(90deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-text-secondary);
}

.btn-secondary {
    background: #3a3a5a;
    color: var(--color-text-secondary);
    font-weight: 700;
}

.btn-secondary:hover {
    background: var(--color-bg-card-alt);
    color: var(--color-text-secondary);
}

.btn-success {
    background: var(--color-success);
    color: var(--color-text-secondary);
    font-weight: 700;
}

.btn-success:hover {
    background: var(--color-success-dark);
    color: var(--color-text-secondary);
}

.btn-info {
    background: var(--color-info);
    color: var(--color-text-secondary);
    font-weight: 700;
}

.btn-info:hover {
    background: var(--color-info-dark);
    color: var(--color-text-secondary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

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

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-muted { color: var(--color-text-muted); }

/* Spacing Utilities */
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* Display Utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flex Utilities */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* ========== LOADING SPINNER ========== */
.spinner {
    border: 4px solid rgba(255, 179, 0, 0.3);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin: 24px 0;
    text-align: center;
}

.error {
    color: var(--color-danger);
    font-size: 1.2rem;
    margin: 24px 0;
    text-align: center;
}

/* ========== RESPONSIVE HEADER ========== */
@media (max-width: 768px) {
    .header {
        flex-wrap: wrap;
        gap: 15px;
        padding: 10px 15px;
    }
    
    .site-logo {
        height: 50px;
        margin-right: 10px;
    }
    
    .brand-title {
        font-size: 1.5rem;
    }
    
    .header-spacer {
        display: none;
    }
}