/*
 * Modern UI Styles for FindKSAJobs
 * Centralized styling for a consistent, modern look across all pages
 */

/* ========================================
   CSS VARIABLES & THEMING
======================================== */
:root {
    --primary: #2c3e50;
    --primary-light: #34495e;
    --accent: #1abc9c;
    --accent-light: #48c9b0;
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #3498db;
    
    /* Neutrals */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius: 10px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ========================================
   BASE STYLES
======================================== */
body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
}

/* ========================================
   CARD STYLES
======================================== */
.card-modern {
    background: white;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.card-modern .card-body {
    padding: 1.5rem;
}

/* Stat Cards */
.stat-card-modern {
    background: white;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: all var(--transition);
    overflow: hidden;
    position: relative;
}

.stat-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

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

.stat-icon-modern {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    transition: transform var(--transition);
}

.stat-card-modern:hover .stat-icon-modern {
    transform: scale(1.1);
}

/* ========================================
   BUTTON STYLES
======================================== */
.btn-modern {
    padding: 0.625rem 1.5rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-primary-modern {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

.btn-accent-modern {
    background: var(--gradient-accent);
    color: white;
}

.btn-outline-modern {
    background: transparent;
    border: 2px solid var(--gray-200);
    color: var(--gray-700);
}

.btn-outline-modern:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
    transform: translateY(-1px);
}

/* ========================================
   FORM STYLES
======================================== */
.form-control-modern {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    transition: all var(--transition);
    background-color: var(--gray-50);
}

.form-control-modern:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(26, 188, 156, 0.15);
    background-color: white;
}

.form-control-modern::placeholder {
    color: var(--gray-400);
}

.input-group-modern .input-group-text {
    background: var(--gray-100);
    border: 2px solid var(--gray-200);
    border-right: none;
    border-radius: var(--radius) 0 0 var(--radius);
    color: var(--gray-500);
}

.input-group-modern .form-control {
    border-left: none;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.input-group-modern:focus-within .input-group-text {
    border-color: var(--accent);
    color: var(--accent);
}

.input-group-modern:focus-within .form-control {
    border-color: var(--accent);
}

/* ========================================
   SEARCH BOX
======================================== */
.search-box-modern {
    background: white;
    border-radius: var(--radius-xl);
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-md);
}

/* ========================================
   JOB CARDS
======================================== */
.job-card-modern {
    background: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.job-card-modern::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform var(--transition);
}

.job-card-modern:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
}

.job-card-modern:hover::after {
    transform: scaleY(1);
}

.company-logo-modern {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    padding: 8px;
}

/* ========================================
   BADGES
======================================== */
.badge-modern {
    padding: 0.375rem 0.875rem;
    font-weight: 500;
    font-size: 0.75rem;
    border-radius: var(--radius-full);
    letter-spacing: 0.025em;
}

.badge-success-soft {
    background: rgba(39, 174, 96, 0.1);
    color: var(--success);
}

.badge-primary-soft {
    background: rgba(44, 62, 80, 0.1);
    color: var(--primary);
}

.badge-accent-soft {
    background: rgba(26, 188, 156, 0.1);
    color: var(--accent);
}

.badge-warning-soft {
    background: rgba(243, 156, 18, 0.1);
    color: var(--warning);
}

/* ========================================
   PAGE HEADER
======================================== */
.page-header-modern {
    margin-bottom: 2rem;
}

.page-header-modern h1,
.page-header-modern h2 {
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.page-header-modern .subtitle {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* ========================================
   ANIMATIONS
======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.4s ease forwards;
}

.animate-slide-in {
    animation: slideIn 0.3s ease forwards;
}

/* Stagger animation delays for lists */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }

/* ========================================
   RESPONSIVE UTILITIES
======================================== */
@media (max-width: 768px) {
    .search-box-modern {
        padding: 1rem;
        border-radius: var(--radius-lg);
    }
    
    .job-card-modern {
        padding: 1rem;
    }
    
    .company-logo-modern {
        width: 50px;
        height: 50px;
    }
    
    .stat-icon-modern {
        width: 48px;
        height: 48px;
    }
    
    .btn-modern {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    /* Stack job card content on mobile */
    .job-card-modern .row {
        gap: 0.75rem;
    }
    
    .job-card-modern .text-end {
        text-align: left !important;
    }
}

@media (max-width: 576px) {
    .page-header-modern h2 {
        font-size: 1.5rem;
    }
    
    .stat-card-modern .card-body {
        padding: 1rem;
    }
}

/* ========================================
   EMPTY STATES
======================================== */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: 1rem;
}

.empty-state h5 {
    color: var(--gray-600);
    font-weight: 600;
}

.empty-state p {
    color: var(--gray-500);
}

/* ========================================
   LOADING STATES
======================================== */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}