/* =======================================================
   THEME CSS - Variables et overrides Bootstrap génériques
   ======================================================= */

:root {
    /* Layout */
    --header-height: 72px;

    /* Primary Colors */
    --primary: #00a3ff;
    --primary-dark: #0056b3;
    --primary-light: #4db8ff;

    /* Neutral Colors */
    --white: #ffffff;
    --black: #000000;
    --gray-50: #f8f9fa;
    --gray-100: #f7f7f8;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #c6c6c6;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;

    /* Semantic Colors */
    --success: #0f6938;
    --success-light: #d1f4e0;
    --success-border: #a3e3c4;
    
    --danger: #c53030;
    --danger-light: #fde8e8;
    --danger-border: #fcbdbd;
    
    --warning: #c87619;
    --warning-light: #fff4e5;
    --warning-border: #ffe0b2;
    
    --info: #0c5aa6;
    --info-light: rgba(0, 163, 255, 0.1);
    --info-border: rgba(0, 163, 255, 0.2);

    /* Text Colors */
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-700);

    /* Background Colors */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-50);
    --bg-tertiary: var(--gray-100);
    --bg-border: var(--gray-200);

    /* Component Specific */
    --chat-sidebar-bg: var(--gray-100);
    --chat-dot-red: #ff5f56;
    --chat-dot-yellow: #ffbd2e;
    --chat-dot-green: #27ca3f;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-subtle: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-200) 100%);

    /* Alpha Variants - Primary */
    --primary-alpha-10: rgba(0, 163, 255, 0.1);
    --primary-alpha-20: rgba(0, 163, 255, 0.2);
    --primary-alpha-30: rgba(0, 163, 255, 0.3);
    --primary-alpha-40: rgba(0, 163, 255, 0.4);

    /* Alpha Variants - Neutral */
    --white-alpha-90: rgba(255, 255, 255, 0.9);
    --white-alpha-80: rgba(255, 255, 255, 0.8);
    --white-alpha-10: rgba(255, 255, 255, 0.1);
    --black-alpha-10: rgba(0, 0, 0, 0.1);
    --black-alpha-05: rgba(0, 0, 0, 0.05);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.15);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* =======================================================
   CUSTOM SCROLLBAR
   ======================================================= */

/* Webkit browsers (Chrome, Safari, Edge) */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--gray-300) transparent;
}

/* =======================================================
   TEXT UTILITIES
   ======================================================= */

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

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

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

/* =======================================================
   BUTTONS
   ======================================================= */

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 12px 32px;
    font-weight: 600;
    transition: all var(--transition-slow);
    box-shadow: 0 4px 15px var(--primary-alpha-30);
    color: var(--white);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background: var(--gradient-primary);
    border: none;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-alpha-40);
    color: var(--white);
}

.btn-secondary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    padding: 10px 32px;
    font-weight: 600;
    transition: all var(--transition-slow);
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
    background: var(--primary);
    border: 2px solid var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-light {
    background: var(--white);
    border: 2px solid var(--white);
    color: var(--primary);
    padding: 12px 32px;
    font-weight: 600;
    transition: all var(--transition-slow);
    box-shadow: 0 4px 15px var(--white-alpha-10);
}

.btn-light:hover,
.btn-light:focus,
.btn-light:active {
    background: var(--gray-50);
    border: 2px solid var(--gray-50);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--black-alpha-10);
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    padding: 10px 30px;
    font-weight: 600;
    transition: all var(--transition-slow);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
    background: var(--primary);
    border: 2px solid var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--primary-alpha-30);
}

.btn-outline-light {
    border: 2px solid var(--white);
    color: var(--white);
    background: transparent;
    padding: 12px 32px;
    font-weight: 600;
    transition: all var(--transition-slow);
}

.btn-outline-light:hover,
.btn-outline-light:focus,
.btn-outline-light:active {
    background: var(--white);
    border: 2px solid var(--white);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--white-alpha-10);
}

.badge-primary {
    background: var(--primary-alpha-10);
    color: var(--primary);
    padding: 4px 16px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
}