/* ==========================================================================
   DESIGN SYSTEM - FINANZAS PERSONALES
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Colors */
    --bg-dark: #090d16;
    --bg-card: rgba(17, 25, 40, 0.75);
    --border-card: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    
    --color-primary: #6366f1;
    --color-primary-glow: rgba(99, 102, 241, 0.15);
    --color-primary-hover: #4f46e5;
    
    --color-income: #10b981;
    --color-income-glow: rgba(16, 185, 129, 0.1);
    --color-income-hover: #059669;
    
    --color-expense: #f43f5e;
    --color-expense-glow: rgba(244, 63, 94, 0.1);
    --color-expense-hover: #e11d48;
    
    --color-info: #0ea5e9;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
    position: relative;
}

/* Background Glowing Orbs */
body::before, body::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(130px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.45;
}

body::before {
    background: var(--color-primary);
    top: 10%;
    left: 5%;
}

body::after {
    background: var(--color-income);
    bottom: 10%;
    right: 5%;
}

/* Heading Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ==========================================================================
   GLASSMORPHISM COMPONENTS
   ========================================================================== */

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-card);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: border var(--transition-fast), transform var(--transition-fast);
}

.glass-card:hover {
    border-color: var(--border-hover);
}

/* ==========================================================================
   FORMS & INPUTS
   ========================================================================== */

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

.form-label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-card);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

/* Checkbox */
.form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.form-checkbox input {
    cursor: pointer;
}

/* Select */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 40px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
}

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

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

.btn-income {
    background-color: var(--color-income);
    color: #fff;
}

.btn-income:hover {
    background-color: var(--color-income-hover);
}

.btn-expense {
    background-color: var(--color-expense);
    color: #fff;
}

.btn-expense:hover {
    background-color: var(--color-expense-hover);
}

.btn-danger {
    background-color: #ef4444;
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

/* ==========================================================================
   AUTHENTICATION PAGE
   ========================================================================== */

.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    text-align: center;
}

.auth-header {
    margin-bottom: 28px;
}

.auth-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2rem;
    background: linear-gradient(135deg, #fff 30%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
    display: inline-block;
}

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

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar (Desktop) */
.sidebar {
    width: 260px;
    background: rgba(10, 15, 30, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-card);
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--text-primary);
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 10px;
    font-family: var(--font-heading);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-item a:hover, .sidebar-item.active a {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.sidebar-item.active a {
    background: var(--color-primary-glow);
    border-left: 3px solid var(--color-primary);
    border-radius: 0 10px 10px 0;
}

.sidebar-user {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-card);
}

.user-info {
    max-width: 150px;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.logout-btn:hover {
    color: var(--color-expense);
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 40px;
    min-height: 100vh;
}

/* Header Area */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.page-title {
    font-size: 1.8rem;
    font-weight: 700;
}

/* ==========================================================================
   DASHBOARD PAGES
   ========================================================================== */

/* Summary Widgets Grid */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.widget-balance {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 130px;
    position: relative;
    overflow: hidden;
}

.widget-balance::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    opacity: 0.05;
    pointer-events: none;
}

.widget-balance.primary::before {
    background: var(--color-primary);
    box-shadow: 0 0 40px 40px var(--color-primary);
}

.widget-balance.income::before {
    background: var(--color-income);
    box-shadow: 0 0 40px 40px var(--color-income);
}

.widget-balance.expense::before {
    background: var(--color-expense);
    box-shadow: 0 0 40px 40px var(--color-expense);
}

.widget-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.widget-amount {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    margin: 8px 0;
}

.widget-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.widget-footer.highlight {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Exchange Rate Banner */
.exchange-rate-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(99, 102, 241, 0.08);
    border: 1px dashed rgba(99, 102, 241, 0.25);
    border-radius: 12px;
    padding: 12px 20px;
    margin-bottom: 30px;
    font-size: 0.9rem;
}

.rate-details {
    display: flex;
    align-items: center;
    gap: 20px;
}

.rate-item {
    font-weight: 600;
}

.rate-item span {
    color: var(--color-primary);
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    min-height: 380px;
    display: flex;
    flex-direction: column;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.chart-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.chart-container {
    flex: 1;
    position: relative;
    width: 100%;
    height: 100%;
}

/* Recent Transactions */
.recent-transactions-card {
    margin-bottom: 30px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

/* ==========================================================================
   TRANSACTIONS TABLE & LIST
   ========================================================================== */

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

.table th {
    padding: 14px 16px;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 600;
    border-bottom: 1px solid var(--border-card);
}

.table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-card);
    vertical-align: middle;
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Transaction Styles */
.trans-amount {
    font-family: var(--font-heading);
    font-weight: 700;
    white-space: nowrap;
}

.trans-amount.income {
    color: var(--color-income);
}

.trans-amount.expense {
    color: var(--color-expense);
}

.trans-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.tag-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-card);
    color: var(--text-secondary);
    margin-right: 4px;
    margin-bottom: 4px;
}

.trans-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.trans-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.trans-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.trans-btn.delete:hover {
    color: var(--color-expense);
    background: var(--color-expense-glow);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    margin-bottom: 25px;
}

.filter-item {
    flex: 1;
    min-width: 150px;
}

.filter-item.search {
    flex: 2;
    min-width: 250px;
}

/* ==========================================================================
   MODAL DIALOGS
   ========================================================================== */

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

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

.modal-container {
    width: 100%;
    max-width: 550px;
    transform: scale(0.95);
    transition: transform var(--transition-fast);
}

.modal-backdrop.show .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-card);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

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

.modal-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-card);
    padding-bottom: 10px;
}

.modal-tab {
    flex: 1;
    text-align: center;
    padding: 10px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-card);
    transition: all var(--transition-fast);
}

.modal-tab.active {
    background: var(--color-primary-glow);
    border-color: var(--color-primary);
    color: var(--text-primary);
}

.modal-tab.active.income {
    background: var(--color-income-glow);
    border-color: var(--color-income);
}

.modal-tab.active.expense {
    background: var(--color-expense-glow);
    border-color: var(--color-expense);
}

/* ==========================================================================
   MOBILE RESPONSIVENESS
   ========================================================================== */

/* Floating Navigation Bar (Mobile Only) */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(15, 22, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-card);
    border-radius: 20px;
    padding: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.mobile-menu {
    display: flex;
    justify-content: space-around;
    align-items: center;
    list-style: none;
}

.mobile-item a, .mobile-item button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 500;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-item.active a, .mobile-item.active button {
    color: var(--color-primary);
}

.mobile-action-btn {
    width: 48px;
    height: 48px;
    background: var(--color-primary) !important;
    color: white !important;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
    margin-top: -24px;
    border: 3px solid var(--bg-dark) !important;
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
        padding: 20px 20px 100px 20px;
    }
    
    .mobile-nav {
        display: block;
    }
    
    .page-header {
        margin-bottom: 20px;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
}