/**
 * Global Stylesheet for Coach LMS
 *
 * This file contains all global CSS variables, typography, and reusable styles
 * for consistent theming across the entire application.
 *
 * @package    CoachLMS
 * @category   Styles
 * @version    1.0.0
 */

/* ==========================================================================
   CSS Variables - Color Palette & Typography
   ========================================================================== */

:root {
    /* Primary Colors */
    --color-primary: #3F51B5;
    --color-secondary: #2196F3;

    /* Text Colors */
    --color-text-primary: #1f2937;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;
    --color-text-light: #d1d5db;

    /* Background Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fb;
    --color-bg-hover: #f3f4f6;

    /* Border Colors */
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;

    /* Status Colors */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;

    /* Typography */
    --font-family-base: "Poppins", sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

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

/* ==========================================================================
   Base Typography
   ========================================================================== */

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

/* ==========================================================================
   Utility Classes
   ========================================================================== */

/* Color Utilities - Text */
.text-primary {
    color: var(--color-primary) !important;
}

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

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

/* Color Utilities - Background */
.bg-primary {
    background-color: var(--color-primary) !important;
}

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

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

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

/* Hover States */
.hover\:text-primary:hover {
    color: var(--color-primary) !important;
}

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

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

.hover\:bg-secondary:hover {
    background-color: var(--color-secondary) !important;
}

.hover\:bg-body:hover {
    background-color: var(--color-bg-secondary) !important;
}

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

.hover\:border-secondary:hover {
    border-color: var(--color-secondary) !important;
}

/* Gradient Utilities */
.gradient-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%) !important;
}

/* Tailwind-compatible gradient classes */
.bg-gradient-to-r {
    background-image: linear-gradient(to right, var(--tw-gradient-stops)) !important;
}

.from-primary {
    --tw-gradient-from: var(--color-primary) !important;
    --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(0, 106, 78, 0)) !important;
}

.to-secondary {
    --tw-gradient-to: var(--color-secondary) !important;
}

/* Ring utilities for focus states */
.ring-secondary {
    --tw-ring-color: var(--color-secondary) !important;
}

.focus\:ring-secondary:focus {
    --tw-ring-color: var(--color-secondary) !important;
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1) !important;
}

/* File input styling */
input[type="file"]::file-selector-button {
    background-color: var(--color-primary) !important;
    color: #ffffff !important;
}

/* Border Utilities */
.border-default {
    border-color: var(--color-border) !important;
}

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

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

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

.border-body {
    border-color: var(--color-bg-secondary) !
important;
}

/* Shadow Utilities */
.shadow-soft {
    box-shadow: var(--shadow-md);
}

/* Toggle Switch Styling */
.toggle-switch-bg {
    transition: background-color 0.3s ease;
}

.peer:checked ~ .toggle-switch-bg {
    background-color: var(--color-primary) !important;
}

.peer:not(:checked) ~ .toggle-switch-bg {
    background-color: #d1d5db !important;
}

.shadow-medium {
    box-shadow: var(--shadow-lg);
}

.shadow-large {
    box-shadow: var(--shadow-xl);
}

/* Transition Utilities */
.transition-base {
    transition: var(--transition-base);
}

.transition-fast {
    transition: var(--transition-fast);
}

.transition-slow {
    transition: var(--transition-slow);
}

/* ==========================================================================
   Component Styles
   ========================================================================== */

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: #ffffff;
    font-weight: var(--font-weight-semibold);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    opacity: 0.9;
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
    font-weight: var(--font-weight-semibold);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    cursor: pointer;
}

.btn-secondary:hover {
    background-color: var(--color-bg-hover);
    border-color: var(--color-secondary);
}

/* Cards */
.card {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

/* Input Fields */
.input-field {
    width: 100%;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    font-family: var(--font-family-base);
    font-size: 0.875rem;
    transition: var(--transition-base);
    background-color: var(--color-bg-primary);
}

.input-field:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1);
}

.input-field:disabled {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-muted);
    cursor: not-allowed;
}

/* Input Focus Utility */
.input-focus:focus {
    outline: none;
    border-color: var(--color-secondary) !important;
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1) !important;
}

/* Status Badges */
.badge-success {
    background-color: var(--color-success-light);
    color: var(--color-success);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
}

.badge-warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
}

.badge-danger {
    background-color: var(--color-danger-light);
    color: var(--color-danger);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
}

/* Icon Styles */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon-sm {
    width: 1rem;
    height: 1rem;
}

.icon-md {
    width: 1.25rem;
    height: 1.25rem;
}

.icon-lg {
    width: 1.5rem;
    height: 1.5rem;
}

.icon-xl {
    width: 2rem;
    height: 2rem;
}

/* ==========================================================================
   Responsive Utilities
   ========================================================================== */

@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
    }
}