/**
 * SEPA.id Design System
 * Based on BankPay+ design tokens and components
 * 
 * @version 1.0.0
 * @author INSTANTpay
 */

/* ========================================
   CSS Variables (Design Tokens)
   ======================================== */

:root {
    /* Public Pages - Green Theme */
    --gradient-public-start: #059669;  /* emerald-600 */
    --gradient-public-mid: #0d9488;    /* teal-600 */
    --gradient-public-end: #06b6d4;    /* cyan-600 */
    
    /* PWA Pages - Purple/Blue Theme */
    --gradient-pwa-start: #2563eb;     /* blue-600 */
    --gradient-pwa-mid: #4f46e5;       /* indigo-600 */
    --gradient-pwa-end: #9333ea;       /* purple-600 */
    
    /* Footer Gradient */
    --footer-bg-start: #111827;        /* gray-900 */
    --footer-bg-mid: #1e3a8a;          /* blue-950 */
    --footer-bg-end: #581c87;          /* purple-950 */
    
    /* Logo Colors (5-color palette) */
    --logo-color-1: #3b82f6;           /* blue-500 */
    --logo-color-2: #8b5cf6;           /* violet-500 */
    --logo-color-3: #a855f7;           /* purple-500 */
    --logo-color-4: #06b6d4;           /* cyan-500 */
    --logo-color-5: #2563eb;           /* blue-600 */
    
    /* Footer Text Colors */
    --footer-text: #d1d5db;            /* gray-300 */
    --footer-text-muted: #9ca3af;      /* gray-400 */
    --footer-accent: #6b7280;          /* gray-500 */
    --footer-success: #10b981;         /* emerald-500 */
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* ========================================
   Gradient Background Animations
   ======================================== */

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes gradientPulse {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ========================================
   Gradient Utilities
   ======================================== */

.gradient-bg-public {
    background: linear-gradient(135deg, 
        var(--gradient-public-start) 0%, 
        var(--gradient-public-mid) 50%, 
        var(--gradient-public-end) 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

.gradient-bg-pwa {
    background: linear-gradient(135deg, 
        var(--gradient-pwa-start) 0%, 
        var(--gradient-pwa-mid) 50%, 
        var(--gradient-pwa-end) 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

.gradient-bg-footer {
    background: linear-gradient(135deg, 
        var(--footer-bg-start) 0%, 
        var(--footer-bg-mid) 50%, 
        var(--footer-bg-end) 100%);
}

/* Header gradient (pricing section style) */
.gradient-header-public {
    background: linear-gradient(to right, 
        var(--gradient-public-start), 
        var(--gradient-public-mid));
}

.gradient-header-pwa {
    background: linear-gradient(to right, 
        var(--gradient-pwa-start), 
        var(--gradient-pwa-end));
}

/* ========================================
   Shared Header Layout
   ======================================== */

.page-header {
    background: #ffffff;
    border-bottom: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow: var(--shadow-sm);
}

.page-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

/* ========================================
   PWA Toolbar (Light Variant)
   ======================================== */

.pwa-toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pwa-toolbar-light {
    background: #ffffff;
    padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.pwa-toolbar-back {
    width: 40px;
    height: 40px;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.25rem;
    transition: background 0.2s;
}

.pwa-toolbar-light .pwa-toolbar-back {
    background: var(--color-secondary);
    color: var(--color-foreground);
}

.pwa-toolbar-light .pwa-toolbar-back:hover {
    background: var(--color-input);
}

.pwa-toolbar-title {
    font-size: 1.25rem;
    font-weight: 600;
    flex: 1;
    color: var(--color-foreground);
}

.pwa-toolbar-actions {
    display: flex;
    gap: 0.5rem;
}

.pwa-toolbar-icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
}

.pwa-toolbar-light .pwa-toolbar-icon-btn {
    background: var(--color-secondary);
    color: var(--color-foreground);
}

.pwa-toolbar-light .pwa-toolbar-icon-btn:hover {
    background: var(--color-input);
}

.pwa-toolbar-dark {
    padding: 1rem 1.25rem;
    background: rgba(15, 52, 96, 0.9);
    border-bottom: 1px solid rgba(15, 52, 96, 0.95);
    box-shadow: var(--shadow-sm);
    color: #e5e7eb;
    backdrop-filter: blur(10px);
}

.pwa-toolbar-dark .pwa-toolbar-title {
    color: #e5e7eb;
}

.pwa-toolbar-dark .pwa-toolbar-back,
.pwa-toolbar-dark .pwa-toolbar-icon-btn {
    background: rgba(15, 52, 96, 0.95);
    color: #e5e7eb;
    border: 1px solid rgba(148, 163, 184, 0.5);
}

.pwa-toolbar-dark .pwa-toolbar-back:hover,
.pwa-toolbar-dark .pwa-toolbar-icon-btn:hover {
    background: rgba(37, 99, 235, 0.85);
}

/* Generic page content container (horizontal padding + max width) */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========================================
   Gradient Text
   ======================================== */

.gradient-text {
    background: linear-gradient(135deg, 
        var(--logo-color-1), 
        var(--logo-color-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-public {
    background: linear-gradient(135deg, 
        var(--gradient-public-start), 
        var(--gradient-public-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-pwa {
    background: linear-gradient(135deg, 
        var(--gradient-pwa-start), 
        var(--gradient-pwa-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ========================================
   Card Components
   ======================================== */

.card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.card-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    color: white;
}

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

/* ========================================
   Footer Component
   ======================================== */

.footer {
    position: relative;
    overflow: hidden;
    padding: var(--spacing-xl) 0;
}

.footer-content {
    position: relative;
    z-index: 10;
}

.footer-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: float 20s ease-in-out infinite;
}

.footer-orb-1 {
    top: -50%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: var(--logo-color-1);
    animation-delay: 0s;
}

.footer-orb-2 {
    bottom: -30%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: var(--logo-color-2);
    animation-delay: 5s;
}

.footer-orb-3 {
    top: 50%;
    right: -5%;
    width: 250px;
    height: 250px;
    background: var(--logo-color-4);
    animation-delay: 10s;
}

/* ========================================
   Badge Components
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: transform var(--transition-fast);
}

.badge:hover {
    transform: scale(1.05);
}

.badge-primary {
    background: linear-gradient(135deg, var(--gradient-public-start), var(--gradient-public-end));
    color: white;
}

.badge-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

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

.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-600 { max-width: 600px; }
.underline { text-decoration: underline; }

.text-muted { color: var(--color-muted-foreground); }
.text-inverse { color: #ffffff; }

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 2rem; }

.text-footer { color: var(--footer-text); }
.text-footer-muted { color: var(--footer-text-muted); }
.text-footer-accent { color: var(--footer-accent); }
.text-success { color: var(--footer-success); }
.text-destructive { color: var(--color-destructive); }

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

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

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

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

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }
    
    .card-header {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .card-body {
        padding: var(--spacing-lg);
    }
}

/* ========================================
   Accessibility
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
:focus-visible {
    outline: 2px solid var(--gradient-public-start);
    outline-offset: 2px;
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
    .gradient-bg-public,
    .gradient-bg-pwa,
    .gradient-bg-footer {
        background: white !important;
        color: black !important;
    }
    
    .footer-orb {
        display: none;
    }
}