/* public/css/global.css */

/* ==================== */
/* VARIABLES & RESET */
/* ==================== */
:root {
    /* Primary Colors */
    --primary: #4CAF50;
    --primary-dark: #3e8e41;
    --primary-light: #E8F5E9;
    
    /* Secondary Colors */
    --secondary: #f8f9fa;
    --secondary-dark: #e9ecef;
    
    /* Text Colors */
    --text: #333;
    --text-light: #666;
    --text-muted: #999;
    
    /* Background Colors */
    --light: #fff;
    --dark: #212529;
    
    /* State Colors */
    --error: #f44336;
    --error-light: #FFEBEE;
    --success: #4CAF50;
    --success-light: #E8F5E9;
    --warning: #FF9800;
    --warning-light: #FFF3E0;
    --info: #2196F3;
    --info-light: #E3F2FD;
    
    /* Shadows */
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 6px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius: 20px;
    --radius-sm: 10px;
    --radius-xs: 5px;
    --radius-circle: 50%;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ==================== */
/* RESET & BASE STYLES */
/* ==================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Instrument Sans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--secondary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select,
button {
    font: inherit;
}

/* ==================== */
/* TYPOGRAPHY */
/* ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    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);
}

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

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

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

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

.text-error {
    color: var(--error);
}

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

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

.fw-bold {
    font-weight: 600;
}

.fw-normal {
    font-weight: 400;
}

.fw-light {
    font-weight: 300;
}

/* ==================== */
/* LAYOUT & CONTAINERS */
/* ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -1);
}

.col {
    flex: 1 0 0%;
    padding: 0 var(--spacing-md);
}

/* ==================== */
/* UTILITY CLASSES */
/* ==================== */
/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flexbox */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-column {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-nowrap {
    flex-wrap: nowrap;
}

.align-items-start { align-items: flex-start; }
.align-items-center { align-items: center; }
.align-items-end { align-items: flex-end; }

.justify-content-start { justify-content: flex-start; }
.justify-content-center { justify-content: center; }
.justify-content-end { justify-content: flex-end; }
.justify-content-between { justify-content: space-between; }
.justify-content-around { justify-content: space-around; }

/* Grid */
.grid-center {
    display: grid;
    place-items: center;
}

/* Spacing - Margin */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--spacing-xs) !important; }
.m-2 { margin: var(--spacing-sm) !important; }
.m-3 { margin: var(--spacing-md) !important; }
.m-4 { margin: var(--spacing-lg) !important; }
.m-5 { margin: var(--spacing-xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }
.mt-5 { margin-top: var(--spacing-xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }
.mb-5 { margin-bottom: var(--spacing-xl) !important; }

.ml-0 { margin-left: 0 !important; }
.ml-1 { margin-left: var(--spacing-xs) !important; }
.ml-2 { margin-left: var(--spacing-sm) !important; }
.ml-3 { margin-left: var(--spacing-md) !important; }
.ml-4 { margin-left: var(--spacing-lg) !important; }
.ml-5 { margin-left: var(--spacing-xl) !important; }

.mr-0 { margin-right: 0 !important; }
.mr-1 { margin-right: var(--spacing-xs) !important; }
.mr-2 { margin-right: var(--spacing-sm) !important; }
.mr-3 { margin-right: var(--spacing-md) !important; }
.mr-4 { margin-right: var(--spacing-lg) !important; }
.mr-5 { margin-right: var(--spacing-xl) !important; }

.mx-0 { margin-left: 0 !important; margin-right: 0 !important; }
.mx-1 { margin-left: var(--spacing-xs) !important; margin-right: var(--spacing-xs) !important; }
.mx-2 { margin-left: var(--spacing-sm) !important; margin-right: var(--spacing-sm) !important; }
.mx-3 { margin-left: var(--spacing-md) !important; margin-right: var(--spacing-md) !important; }
.mx-4 { margin-left: var(--spacing-lg) !important; margin-right: var(--spacing-lg) !important; }
.mx-5 { margin-left: var(--spacing-xl) !important; margin-right: var(--spacing-xl) !important; }

.my-0 { margin-top: 0 !important; margin-bottom: 0 !important; }
.my-1 { margin-top: var(--spacing-xs) !important; margin-bottom: var(--spacing-xs) !important; }
.my-2 { margin-top: var(--spacing-sm) !important; margin-bottom: var(--spacing-sm) !important; }
.my-3 { margin-top: var(--spacing-md) !important; margin-bottom: var(--spacing-md) !important; }
.my-4 { margin-top: var(--spacing-lg) !important; margin-bottom: var(--spacing-lg) !important; }
.my-5 { margin-top: var(--spacing-xl) !important; margin-bottom: var(--spacing-xl) !important; }

/* Spacing - Padding */
.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }
.p-5 { padding: var(--spacing-xl) !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: var(--spacing-xs) !important; }
.pt-2 { padding-top: var(--spacing-sm) !important; }
.pt-3 { padding-top: var(--spacing-md) !important; }
.pt-4 { padding-top: var(--spacing-lg) !important; }
.pt-5 { padding-top: var(--spacing-xl) !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: var(--spacing-xs) !important; }
.pb-2 { padding-bottom: var(--spacing-sm) !important; }
.pb-3 { padding-bottom: var(--spacing-md) !important; }
.pb-4 { padding-bottom: var(--spacing-lg) !important; }
.pb-5 { padding-bottom: var(--spacing-xl) !important; }

.pl-0 { padding-left: 0 !important; }
.pl-1 { padding-left: var(--spacing-xs) !important; }
.pl-2 { padding-left: var(--spacing-sm) !important; }
.pl-3 { padding-left: var(--spacing-md) !important; }
.pl-4 { padding-left: var(--spacing-lg) !important; }
.pl-5 { padding-left: var(--spacing-xl) !important; }

.pr-0 { padding-right: 0 !important; }
.pr-1 { padding-right: var(--spacing-xs) !important; }
.pr-2 { padding-right: var(--spacing-sm) !important; }
.pr-3 { padding-right: var(--spacing-md) !important; }
.pr-4 { padding-right: var(--spacing-lg) !important; }
.pr-5 { padding-right: var(--spacing-xl) !important; }

.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-1 { padding-left: var(--spacing-xs) !important; padding-right: var(--spacing-xs) !important; }
.px-2 { padding-left: var(--spacing-sm) !important; padding-right: var(--spacing-sm) !important; }
.px-3 { padding-left: var(--spacing-md) !important; padding-right: var(--spacing-md) !important; }
.px-4 { padding-left: var(--spacing-lg) !important; padding-right: var(--spacing-lg) !important; }
.px-5 { padding-left: var(--spacing-xl) !important; padding-right: var(--spacing-xl) !important; }

.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-1 { padding-top: var(--spacing-xs) !important; padding-bottom: var(--spacing-xs) !important; }
.py-2 { padding-top: var(--spacing-sm) !important; padding-bottom: var(--spacing-sm) !important; }
.py-3 { padding-top: var(--spacing-md) !important; padding-bottom: var(--spacing-md) !important; }
.py-4 { padding-top: var(--spacing-lg) !important; padding-bottom: var(--spacing-lg) !important; }
.py-5 { padding-top: var(--spacing-xl) !important; padding-bottom: var(--spacing-xl) !important; }

/* Width & Height */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

.min-vh-100 { min-height: 100vh !important; }
.vh-100 { height: 100vh !important; }

/* Border Radius */
.rounded { border-radius: var(--radius-sm) !important; }
.rounded-sm { border-radius: var(--radius-xs) !important; }
.rounded-lg { border-radius: var(--radius) !important; }
.rounded-circle { border-radius: var(--radius-circle) !important; }
.rounded-pill { border-radius: 50rem !important; }

/* Shadows */
.shadow-sm { box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05) !important; }
.shadow { box-shadow: var(--shadow) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-none { box-shadow: none !important; }

/* Background Colors */
.bg-primary { background-color: var(--primary) !important; }
.bg-primary-light { background-color: var(--primary-light) !important; }
.bg-secondary { background-color: var(--secondary) !important; }
.bg-light { background-color: var(--light) !important; }
.bg-dark { background-color: var(--dark) !important; }
.bg-error { background-color: var(--error) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-info { background-color: var(--info) !important; }

/* ==================== */
/* COMPONENTS - GENERAL */
/* ==================== */
/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 1rem;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--light);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: var(--light);
    box-shadow: var(--shadow-hover);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--light);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn:disabled,
.btn.disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
}

/* Cards */
.card {
    background-color: var(--light);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-xl);
    transition: var(--transition);
}

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

.card-header {
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--secondary-dark);
}

.card-body {
    padding: var(--spacing-md) 0;
}

.card-footer {
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-top: 1px solid var(--secondary-dark);
}

/* Forms - General */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--secondary-dark);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    line-height: 1.5;
    background-color: var(--light);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.form-control.error {
    border-color: var(--error);
}

.form-control.success {
    border-color: var(--success);
}

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid transparent;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: fadeIn 0.3s ease-out;
}

.alert-success {
    background-color: var(--success-light);
    color: var(--success);
    border-left-color: var(--success);
}

.alert-error {
    background-color: var(--error-light);
    color: var(--error);
    border-left-color: var(--error);
}

.alert-warning {
    background-color: var(--warning-light);
    color: var(--warning);
    border-left-color: var(--warning);
}

.alert-info {
    background-color: var(--info-light);
    color: var(--info);
    border-left-color: var(--info);
}

/* ==================== */
/* ANIMATIONS */
/* ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* ==================== */
/* RESPONSIVE BREAKPOINTS */
/* ==================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
    }
    
    .card {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .card {
        padding: var(--spacing-md);
        border-radius: var(--radius-sm);
    }
    
    .btn {
        padding: 0.5rem 1rem;
    }
}