/**
 * ELTEZAMAT - Main Styles
 * Financial Calculator for Kuwait & GCC
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Primary Colors */
    --eltz-primary: #1e3a5f;
    --eltz-primary-light: #2d5a87;
    --eltz-primary-dark: #152a45;
    --eltz-primary-rgb: 30, 58, 95;
    
    /* Secondary Colors */
    --eltz-secondary: #3b82f6;
    --eltz-secondary-light: #60a5fa;
    --eltz-secondary-dark: #2563eb;
    
    /* Accent Colors */
    --eltz-accent: #10b981;
    --eltz-accent-light: #34d399;
    --eltz-accent-dark: #059669;
    
    /* Status Colors */
    --eltz-success: #10b981;
    --eltz-warning: #f59e0b;
    --eltz-danger: #ef4444;
    --eltz-info: #3b82f6;
    
    /* Neutral Colors */
    --eltz-white: #ffffff;
    --eltz-black: #000000;
    --eltz-gray-50: #f8fafc;
    --eltz-gray-100: #f1f5f9;
    --eltz-gray-200: #e2e8f0;
    --eltz-gray-300: #cbd5e1;
    --eltz-gray-400: #94a3b8;
    --eltz-gray-500: #64748b;
    --eltz-gray-600: #475569;
    --eltz-gray-700: #334155;
    --eltz-gray-800: #1e293b;
    --eltz-gray-900: #0f172a;
    
    /* Background */
    --eltz-bg: #f8fafc;
    --eltz-bg-card: #ffffff;
    --eltz-bg-dark: #1e293b;
    
    /* Text */
    --eltz-text: #1f2937;
    --eltz-text-light: #64748b;
    --eltz-text-muted: #94a3b8;
    
    /* Borders */
    --eltz-border: #e2e8f0;
    --eltz-border-light: #f1f5f9;
    
    /* Shadows */
    --eltz-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --eltz-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --eltz-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --eltz-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --eltz-shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --eltz-radius-sm: 6px;
    --eltz-radius: 8px;
    --eltz-radius-md: 12px;
    --eltz-radius-lg: 16px;
    --eltz-radius-xl: 24px;
    --eltz-radius-full: 9999px;
    
    /* Typography */
    --eltz-font: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --eltz-font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    
    /* Transitions */
    --eltz-transition-fast: 150ms ease;
    --eltz-transition: 200ms ease;
    --eltz-transition-slow: 300ms ease;
    
    /* Z-Index */
    --eltz-z-dropdown: 1000;
    --eltz-z-modal: 1050;
    --eltz-z-toast: 1100;
}

/* ============================================
   Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

.eltz-container {
    font-family: var(--eltz-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--eltz-text);
    background-color: var(--eltz-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.eltz-container * {
    margin: 0;
    padding: 0;
}

.eltz-container a {
    color: var(--eltz-primary);
    text-decoration: none;
    transition: color var(--eltz-transition);
}

.eltz-container a:hover {
    color: var(--eltz-primary-light);
}

/* RTL Support */
.eltz-rtl {
    direction: rtl;
    text-align: right;
}

.eltz-ltr {
    direction: ltr;
    text-align: left;
}

/* ============================================
   Typography
   ============================================ */
.eltz-container h1,
.eltz-container h2,
.eltz-container h3,
.eltz-container h4,
.eltz-container h5,
.eltz-container h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--eltz-text);
}

.eltz-container h1 { font-size: 2.5rem; }
.eltz-container h2 { font-size: 2rem; }
.eltz-container h3 { font-size: 1.5rem; }
.eltz-container h4 { font-size: 1.25rem; }
.eltz-container h5 { font-size: 1.125rem; }
.eltz-container h6 { font-size: 1rem; }

.eltz-container p {
    margin-bottom: 1rem;
    color: var(--eltz-text-light);
}

/* ============================================
   Layout
   ============================================ */
.eltz-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.eltz-section {
    padding: 4rem 0;
}

.eltz-grid {
    display: grid;
    gap: 1.5rem;
}

.eltz-grid-2 { grid-template-columns: repeat(2, 1fr); }
.eltz-grid-3 { grid-template-columns: repeat(3, 1fr); }
.eltz-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .eltz-grid-2,
    .eltz-grid-3,
    .eltz-grid-4 {
        grid-template-columns: 1fr;
    }
}

.eltz-flex {
    display: flex;
    align-items: center;
}

.eltz-flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

/* ============================================
   Buttons
   ============================================ */
.eltz-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--eltz-font);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 2px solid transparent;
    border-radius: var(--eltz-radius-md);
    transition: all var(--eltz-transition);
}

.eltz-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--eltz-primary-rgb), 0.3);
}

.eltz-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Primary Button */
.eltz-btn-primary {
    color: var(--eltz-white);
    background: linear-gradient(135deg, var(--eltz-primary) 0%, var(--eltz-primary-light) 100%);
    border-color: var(--eltz-primary);
}

.eltz-btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--eltz-primary-dark) 0%, var(--eltz-primary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--eltz-shadow-md);
}

/* Secondary Button */
.eltz-btn-secondary {
    color: var(--eltz-primary);
    background: var(--eltz-white);
    border-color: var(--eltz-primary);
}

.eltz-btn-secondary:hover:not(:disabled) {
    background: var(--eltz-primary);
    color: var(--eltz-white);
}

/* Success Button */
.eltz-btn-success {
    color: var(--eltz-white);
    background: linear-gradient(135deg, var(--eltz-success) 0%, var(--eltz-accent-light) 100%);
    border-color: var(--eltz-success);
}

.eltz-btn-success:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--eltz-accent-dark) 0%, var(--eltz-success) 100%);
    transform: translateY(-2px);
}

/* Ghost Button */
.eltz-btn-ghost {
    color: var(--eltz-text);
    background: transparent;
    border-color: transparent;
}

.eltz-btn-ghost:hover:not(:disabled) {
    background: var(--eltz-gray-100);
}

/* Button Sizes */
.eltz-btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

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

/* ============================================
   Form Elements
   ============================================ */
.eltz-form-group {
    margin-bottom: 1.5rem;
}

.eltz-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--eltz-text);
}

.eltz-input {
    display: block;
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--eltz-font);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--eltz-text);
    background-color: var(--eltz-white);
    background-clip: padding-box;
    border: 2px solid var(--eltz-border);
    border-radius: var(--eltz-radius-md);
    transition: border-color var(--eltz-transition), box-shadow var(--eltz-transition);
}

.eltz-input:focus {
    outline: none;
    border-color: var(--eltz-primary);
    box-shadow: 0 0 0 3px rgba(var(--eltz-primary-rgb), 0.1);
}

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

.eltz-input:disabled {
    background-color: var(--eltz-gray-100);
    cursor: not-allowed;
}

/* Input with icon */
.eltz-input-group {
    position: relative;
}

.eltz-input-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--eltz-text-muted);
    pointer-events: none;
}

.eltz-input-icon-left {
    left: 1rem;
}

.eltz-input-icon-right {
    right: 1rem;
}

.eltz-input-group .eltz-input {
    padding-left: 3rem;
}

.eltz-rtl .eltz-input-group .eltz-input {
    padding-left: 1rem;
    padding-right: 3rem;
}

/* Select */
.eltz-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.eltz-rtl .eltz-select {
    background-position: left 1rem center;
    padding-right: 1rem;
    padding-left: 3rem;
}

/* ============================================
   Cards
   ============================================ */
.eltz-card {
    background: var(--eltz-white);
    border-radius: var(--eltz-radius-lg);
    box-shadow: var(--eltz-shadow);
    overflow: hidden;
    transition: transform var(--eltz-transition), box-shadow var(--eltz-transition);
}

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

.eltz-card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--eltz-border);
}

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

.eltz-card-footer {
    padding: 1rem 1.5rem;
    background: var(--eltz-gray-50);
    border-top: 1px solid var(--eltz-border);
}

/* ============================================
   Status Badges
   ============================================ */
.eltz-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border-radius: var(--eltz-radius-full);
}

.eltz-badge-safe {
    color: var(--eltz-success);
    background: rgba(16, 185, 129, 0.1);
}

.eltz-badge-warning {
    color: var(--eltz-warning);
    background: rgba(245, 158, 11, 0.1);
}

.eltz-badge-exceeded {
    color: var(--eltz-danger);
    background: rgba(239, 68, 68, 0.1);
}

/* ============================================
   Progress Ring
   ============================================ */
.eltz-progress-ring {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.eltz-progress-ring svg {
    transform: rotate(-90deg);
}

.eltz-progress-ring-bg {
    fill: none;
    stroke: var(--eltz-gray-200);
}

.eltz-progress-ring-fill {
    fill: none;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease-out;
}

.eltz-progress-ring-text {
    position: absolute;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--eltz-text);
}

.eltz-progress-ring-label {
    position: absolute;
    bottom: 25%;
    font-size: 0.75rem;
    color: var(--eltz-text-muted);
}

/* ============================================
   Navigation
   ============================================ */
.eltz-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: var(--eltz-white);
    box-shadow: var(--eltz-shadow-sm);
}

.eltz-nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--eltz-primary);
}

.eltz-nav-brand img {
    height: 40px;
    width: auto;
}

.eltz-nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
}

.eltz-nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
    color: var(--eltz-text-light);
    border-radius: var(--eltz-radius);
    transition: all var(--eltz-transition);
}

.eltz-nav-link:hover,
.eltz-nav-link.active {
    color: var(--eltz-primary);
    background: rgba(var(--eltz-primary-rgb), 0.05);
}

/* Mobile Nav Toggle */
.eltz-nav-toggle {
    display: none;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
}

@media (max-width: 768px) {
    .eltz-nav-toggle {
        display: block;
    }
    
    .eltz-nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: center;
        gap: 1rem;
        background: var(--eltz-white);
        transform: translateX(-100%);
        transition: transform var(--eltz-transition-slow);
        z-index: var(--eltz-z-modal);
    }
    
    .eltz-nav-menu.open {
        transform: translateX(0);
    }
    
    .eltz-rtl .eltz-nav-menu {
        transform: translateX(100%);
    }
    
    .eltz-rtl .eltz-nav-menu.open {
        transform: translateX(0);
    }
}

/* ============================================
   Language Switcher
   ============================================ */
.eltz-lang-switch {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem;
    background: var(--eltz-gray-100);
    border-radius: var(--eltz-radius-full);
}

.eltz-lang-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--eltz-text-light);
    background: transparent;
    border: none;
    border-radius: var(--eltz-radius-full);
    cursor: pointer;
    transition: all var(--eltz-transition);
}

.eltz-lang-btn.active {
    color: var(--eltz-white);
    background: var(--eltz-primary);
}

/* ============================================
   Toast Notifications
   ============================================ */
.eltz-toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: var(--eltz-z-toast);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.eltz-rtl .eltz-toast-container {
    right: auto;
    left: 1rem;
}

.eltz-toast {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    min-width: 300px;
    max-width: 400px;
    padding: 1rem;
    background: var(--eltz-white);
    border-radius: var(--eltz-radius-md);
    box-shadow: var(--eltz-shadow-lg);
    animation: eltz-slide-in 0.3s ease;
}

.eltz-toast-success {
    border-left: 4px solid var(--eltz-success);
}

.eltz-toast-error {
    border-left: 4px solid var(--eltz-danger);
}

.eltz-toast-warning {
    border-left: 4px solid var(--eltz-warning);
}

.eltz-rtl .eltz-toast {
    border-left: none;
    border-right: 4px solid;
}

.eltz-toast-icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
}

.eltz-toast-content {
    flex: 1;
}

.eltz-toast-title {
    font-weight: 600;
    color: var(--eltz-text);
}

.eltz-toast-message {
    font-size: 0.875rem;
    color: var(--eltz-text-light);
}

.eltz-toast-close {
    flex-shrink: 0;
    padding: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--eltz-transition);
}

.eltz-toast-close:hover {
    opacity: 1;
}

@keyframes eltz-slide-in {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.eltz-rtl .eltz-toast {
    animation-name: eltz-slide-in-rtl;
}

@keyframes eltz-slide-in-rtl {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   Loading States
   ============================================ */
.eltz-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.eltz-spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--eltz-gray-200);
    border-top-color: var(--eltz-primary);
    border-radius: 50%;
    animation: eltz-spin 0.8s linear infinite;
}

@keyframes eltz-spin {
    to {
        transform: rotate(360deg);
    }
}

.eltz-skeleton {
    background: linear-gradient(90deg, var(--eltz-gray-200) 25%, var(--eltz-gray-100) 50%, var(--eltz-gray-200) 75%);
    background-size: 200% 100%;
    animation: eltz-shimmer 1.5s infinite;
    border-radius: var(--eltz-radius);
}

@keyframes eltz-shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   Modal
   ============================================ */
.eltz-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--eltz-z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--eltz-transition);
}

.eltz-modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.eltz-modal {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    margin: 1rem;
    background: var(--eltz-white);
    border-radius: var(--eltz-radius-lg);
    box-shadow: var(--eltz-shadow-xl);
    transform: scale(0.95);
    transition: transform var(--eltz-transition);
    overflow: hidden;
}

.eltz-modal-overlay.open .eltz-modal {
    transform: scale(1);
}

.eltz-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--eltz-border);
}

.eltz-modal-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.eltz-modal-close {
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--eltz-transition);
}

.eltz-modal-close:hover {
    opacity: 1;
}

.eltz-modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.eltz-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--eltz-border);
}

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

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

.eltz-bg-primary { background-color: var(--eltz-primary); }
.eltz-bg-success { background-color: var(--eltz-success); }
.eltz-bg-warning { background-color: var(--eltz-warning); }
.eltz-bg-danger { background-color: var(--eltz-danger); }

.eltz-mt-1 { margin-top: 0.25rem; }
.eltz-mt-2 { margin-top: 0.5rem; }
.eltz-mt-3 { margin-top: 0.75rem; }
.eltz-mt-4 { margin-top: 1rem; }
.eltz-mt-6 { margin-top: 1.5rem; }
.eltz-mt-8 { margin-top: 2rem; }

.eltz-mb-1 { margin-bottom: 0.25rem; }
.eltz-mb-2 { margin-bottom: 0.5rem; }
.eltz-mb-3 { margin-bottom: 0.75rem; }
.eltz-mb-4 { margin-bottom: 1rem; }
.eltz-mb-6 { margin-bottom: 1.5rem; }
.eltz-mb-8 { margin-bottom: 2rem; }

.eltz-p-4 { padding: 1rem; }
.eltz-p-6 { padding: 1.5rem; }
.eltz-p-8 { padding: 2rem; }

.eltz-hidden { display: none !important; }
.eltz-visible { visibility: visible; }
.eltz-invisible { visibility: hidden; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 640px) {
    .eltz-container h1 { font-size: 2rem; }
    .eltz-container h2 { font-size: 1.5rem; }
    .eltz-container h3 { font-size: 1.25rem; }
    
    .eltz-section {
        padding: 2rem 0;
    }
    
    .eltz-wrapper {
        padding: 0 1rem;
    }
}