/* style.css */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --bg-base: #090b11;
    --bg-surface: rgba(17, 22, 37, 0.6);
    --bg-surface-hover: rgba(26, 33, 56, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.2);
    
    --primary: #6366f1; /* Indigo */
    --primary-glow: rgba(99, 102, 241, 0.15);
    --secondary: #14b8a6; /* Teal */
    --secondary-glow: rgba(20, 184, 166, 0.15);
    
    --success: #10b981; /* Emerald */
    --warning: #f59e0b; /* Amber */
    --danger: #ef4444; /* Rose */
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    --shadow-sm: 0 2px 8px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 12px 24px -4px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.4);
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-base);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(20, 184, 166, 0.08) 0%, transparent 40%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    padding-bottom: 80px; /* Space for PWA install banner / notifications */
}

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Glassmorphism panel base */
.glass-panel {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel:hover {
    border-color: rgba(99, 102, 241, 0.25);
}

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Auth Pages (Login / Signup) */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: 40px;
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 8px;
    display: inline-block;
    filter: drop-shadow(0 0 10px var(--primary-glow));
}

.auth-title {
    font-size: 1.8rem;
    color: var(--text-primary);
}

.auth-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    width: 100%;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-teal {
    background: linear-gradient(135deg, var(--secondary) 0%, #0d9488 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px var(--secondary-glow);
}

.btn-teal:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20, 184, 166, 0.35);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: 6px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-link:hover {
    text-decoration: underline;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #a7f3d0;
}

/* Dashboard Layout */
.navbar {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    background: rgba(9, 11, 17, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-logo {
    color: var(--primary);
    font-size: 1.5rem;
    filter: drop-shadow(0 0 5px var(--primary-glow));
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    display: inline-block;
}

.logout-link {
    color: var(--danger);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

.logout-link:hover {
    text-decoration: underline;
}

/* Dashboard Main Content */
.dashboard-grid {
    margin-top: 32px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

/* Stats Section */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.stat-card {
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.stat-upcoming::before {
    background: var(--warning);
}

.stat-due::before {
    background: var(--danger);
}

.stat-paid::before {
    background: var(--success);
}

.stat-commitment::before {
    background: var(--primary);
}

.stat-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2.25rem;
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 6px;
}

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

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

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

.stat-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Dashboard Action Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.title-actions {
    display: flex;
    gap: 12px;
}

/* Loans & Details cards */
.loans-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.loan-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media(min-width: 768px) {
    .loan-card {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.loan-info-main {
    flex: 2;
}

.loan-name-title {
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.loan-dates {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.date-badge {
    background: rgba(255, 255, 255, 0.03);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.loan-progress-box {
    flex: 2;
    min-width: 200px;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.progress-bar-container {
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 4px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.loan-financials {
    flex: 1;
    text-align: right;
    min-width: 120px;
}

.emi-amount-display {
    font-size: 1.3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--secondary);
}

.due-schedule-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.loan-actions {
    flex: 1.2;
    display: flex;
    justify-content: flex-end;
}

/* Pay Button logic states */
.btn-pay-status {
    width: auto;
    font-size: 0.9rem;
    padding: 10px 20px;
    gap: 8px;
}

.btn-paid-done {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.25);
    cursor: pointer;
    position: relative;
}

.btn-paid-done .unpay-text {
    display: none;
}

.btn-paid-done:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.25);
}

.btn-paid-done:hover .paid-text {
    display: none;
}

.btn-paid-done:hover .unpay-text {
    display: inline-block;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 48px;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* Modal Popup Window */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    z-index: 1000;
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    background: #0f121d;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform var(--transition-normal);
    overflow: hidden;
}

.modal-backdrop.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: rgba(0,0,0,0.15);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* PWA / Notification Bar */
.pwa-banner {
    position: fixed;
    bottom: 24px;
    left: 24px;
    right: 24px;
    background: rgba(17, 22, 37, 0.95);
    border: 1px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    z-index: 500;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
    transform: translateY(150%);
    transition: transform var(--transition-normal);
}

.pwa-banner.show {
    transform: translateY(0);
}

@media(min-width: 768px) {
    .pwa-banner {
        flex-direction: row;
        align-items: center;
        max-width: 600px;
        margin: 0 auto;
    }
}

.pwa-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pwa-logo {
    font-size: 1.75rem;
    color: var(--secondary);
}

.pwa-text h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

.pwa-text p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.pwa-actions {
    display: flex;
    gap: 12px;
}

/* Utility Animations */
@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(99, 102, 241, 0); }
    100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

.pulse-primary {
    animation: pulseGlow 2s infinite;
}

/* History log */
.history-section {
    margin-top: 32px;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 300px;
    overflow-y: auto;
    padding-right: 8px;
}

.history-list::-webkit-scrollbar {
    width: 6px;
}

.history-list::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.1);
}

.history-list::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
}

.history-item {
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.history-details {
    display: flex;
    flex-direction: column;
}

.history-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.loan-actions .btn-view-loan-trigger {
    width: auto !important;
    gap: 6px;
    white-space: nowrap;
}