@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #ec4899;
    --bg-gradient-1: #0f172a;
    --bg-gradient-2: #1e1b4b;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: linear-gradient(135deg, var(--bg-gradient-1), var(--bg-gradient-2));
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
}

/* Glassmorphism Utilities */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

/* Layout */
#app {
    width: 100%;
    height: 100vh;
    display: flex;
}

/* Sidebar */
.sidebar {
    width: 280px;
    height: 100vh;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    border-right: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(20px);
    transition: transform 0.3s ease;
    z-index: 100;
}

.sidebar .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.sidebar .logo span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.nav-link {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-link:hover, .nav-link.active {
    background: var(--primary-color);
    color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    height: 100vh;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
    animation: slideUpFadeIn 0.5s ease-out forwards;
}

/* Header / Topbar */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.8rem;
    font-weight: 600;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover {
    background: var(--danger);
    color: white;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.05);
}

option {
    background-color: var(--bg-gradient-1);
    color: white;
}

/* Dashboard Cards */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-card .title {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
}

.stat-card.warning .value { color: var(--warning); }
.stat-card.success .value { color: var(--success); }
.stat-card.danger .value { color: var(--danger); }

/* Tables/Lists */
.data-table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: 12px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    font-size: 0.95rem;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) transparent;
}

.modal-content::-webkit-scrollbar {
    width: 5px;
}

.modal-content::-webkit-scrollbar-track {
    background: transparent;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: white;
}

/* Alerts */
.alert-banner {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    background: rgba(239, 68, 68, 0.9);
    backdrop-filter: blur(10px);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0 0 16px 16px;
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 10px 25px rgba(239, 68, 68, 0.4);
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    width: 90%;
    max-width: 600px;
}

.alert-banner.show {
    transform: translateX(-50%) translateY(0);
}

/* Auth Pages */
.auth-container {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.auth-box {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    animation: slideUpFadeIn 0.6s ease-out forwards;
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.hidden {
    display: none !important;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        bottom: 0;
    }
    .sidebar.active {
        left: 0;
    }
    .mobile-toggle {
        display: block;
    }
    .main-content {
        padding: 1rem;
        width: 100%;
    }
    .topbar {
        padding-top: 1rem;
    }
}
@keyframes slideUpFadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Upload de Comprovante ===== */
.btn-success {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}
.btn-success:hover {
    background: linear-gradient(135deg, #16a34a, #15803d);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

.upload-area {
    border: 2px dashed var(--glass-border);
    border-radius: 16px;
    padding: 2rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255,255,255,0.02);
    position: relative;
}
.upload-area:hover, .upload-area.drag-over {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.08);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}
.upload-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    display: block;
    animation: float 3s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
.upload-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}
.upload-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.comprov-preview {
    margin-top: 1rem;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    background: rgba(255,255,255,0.03);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    animation: slideUpFadeIn 0.3s ease-out forwards;
}
.comprov-preview img {
    max-width: 100%;
    max-height: 220px;
    border-radius: 8px;
    object-fit: contain;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.pdf-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
}
.pdf-preview span {
    font-size: 3rem;
}
.pdf-preview p {
    font-size: 0.85rem;
    color: var(--text-muted);
    word-break: break-all;
    text-align: center;
}
.remove-comprov-btn {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    padding: 0.4rem 1rem;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}
.remove-comprov-btn:hover {
    background: var(--danger);
    color: white;
}

/* Botão Ver Comprovante */
.btn-comprovante {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.8rem;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    background: rgba(34, 197, 94, 0.12);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.25);
    cursor: pointer;
    transition: all 0.3s ease;
}
.btn-comprovante:hover {
    background: var(--success);
    color: white;
    transform: translateY(-1px);
}

#ver-comprovante-body img {
    max-width: 100%;
    max-height: 400px;
    border-radius: 12px;
    object-fit: contain;
}

/* ===== Search Bar ===== */
.search-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    margin-bottom: 1rem;
    border-radius: 12px;
}
.search-bar input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 0;
    font-size: 0.95rem;
    color: var(--text-main);
}
.search-bar input::placeholder {
    color: var(--text-muted);
}
.search-icon {
    font-size: 1rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ===== Dashboard Filter ===== */
.dash-filter-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    margin-bottom: 0;
    border-radius: 12px;
    flex-wrap: wrap;
}
.dash-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.dash-filter-group label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.dash-filter-group select,
.dash-filter-group input {
    width: auto;
    min-width: 130px;
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
}

/* Status badges no dashboard */
.badge-pago {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}
.badge-pendente {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.25);
}