/* ========================================
   Sistema de Gestão de Eventos - XIII SBES
   Design System
   ======================================== */

:root {
    --cor-primaria: #2E7D32;
    --cor-primaria-hover: #1B5E20;
    --cor-primaria-light: #E8F5E9;
    --cor-secundaria: #8D6E63;
    --cor-secundaria-hover: #6D4C41;
    --cor-acento: #FF8F00;
    --cor-sucesso: #43A047;
    --cor-erro: #E53935;
    --cor-aviso: #FB8C00;
    --cor-info: #1E88E5;
    --cor-fundo: #F5F5F5;
    --cor-fundo-card: #FFFFFF;
    --cor-texto: #212121;
    --cor-texto-secundario: #757575;
    --cor-borda: #E0E0E0;
    --sombra-card: 0 2px 8px rgba(0,0,0,0.08);
    --sombra-card-hover: 0 4px 16px rgba(0,0,0,0.12);
    --border-radius: 8px;
    --transition: all 0.2s ease;
    --sidebar-width: 250px;
}

/* ========== Global ========== */
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--cor-fundo);
    color: var(--cor-texto);
    font-size: 14px;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    z-index: 9999;
    padding: 8px 16px;
    background: var(--cor-primaria);
    color: white;
}
.skip-link:focus {
    top: 0;
}

a { color: var(--cor-primaria); }
a:hover { color: var(--cor-primaria-hover); }

/* ========== Navbar ========== */
.bg-primary-custom {
    background: linear-gradient(135deg, var(--cor-primaria) 0%, var(--cor-primaria-hover) 100%) !important;
}

.navbar { box-shadow: 0 2px 4px rgba(0,0,0,0.1); z-index: 1040; }

/* ========== Sidebar ========== */
#sidebar-wrapper {
    width: var(--sidebar-width);
    min-height: calc(100vh - 60px);
    position: fixed;
    top: 60px;
    left: 0;
    z-index: 1030;
    transition: var(--transition);
    overflow-y: auto;
}

#sidebar-wrapper .sidebar-content {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 60px);
}

#page-content-wrapper {
    margin-left: var(--sidebar-width);
    transition: var(--transition);
    min-height: calc(100vh - 60px);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--cor-texto);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 0.9rem;
}

.sidebar-link:hover {
    background-color: var(--cor-primaria-light);
    color: var(--cor-primaria);
}

.sidebar-link.active {
    background-color: var(--cor-primaria);
    color: white;
}

.sidebar-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1025;
}

/* ========== Cards ========== */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--sombra-card);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--sombra-card-hover);
}

.stat-card {
    border-left: 4px solid var(--cor-primaria);
}
.stat-card.warning { border-left-color: var(--cor-aviso); }
.stat-card.success { border-left-color: var(--cor-sucesso); }
.stat-card.info { border-left-color: var(--cor-info); }
.stat-card.danger { border-left-color: var(--cor-erro); }

.stat-card .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--cor-texto);
}

.stat-card .stat-label {
    color: var(--cor-texto-secundario);
    font-size: 0.85rem;
}

/* ========== Buttons ========== */
.btn-primary {
    background-color: var(--cor-primaria);
    border-color: var(--cor-primaria);
}
.btn-primary:hover {
    background-color: var(--cor-primaria-hover);
    border-color: var(--cor-primaria-hover);
}

.btn-accent {
    background-color: var(--cor-acento);
    border-color: var(--cor-acento);
    color: white;
}
.btn-accent:hover {
    background-color: #E65100;
    border-color: #E65100;
    color: white;
}

.btn { min-height: 44px; border-radius: var(--border-radius); }

/* ========== Badges ========== */
.badge-status {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-orange {
    background-color: #FF9800;
    color: white;
}

/* ========== Forms ========== */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border-color: var(--cor-borda);
    min-height: 44px;
}
.form-control:focus, .form-select:focus {
    border-color: var(--cor-primaria);
    box-shadow: 0 0 0 0.2rem rgba(46,125,50,0.15);
}

.form-label .required {
    color: var(--cor-erro);
}

/* ========== Tables ========== */
.table { font-size: 0.9rem; }
.table th {
    background-color: var(--cor-primaria-light);
    font-weight: 600;
    border-bottom: 2px solid var(--cor-primaria);
}

/* ========== Hero Section ========== */
.hero-section {
    background: linear-gradient(135deg, var(--cor-primaria) 0%, #1a472a 50%, var(--cor-secundaria) 100%);
    color: white;
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-section h1 {
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 800;
}

/* ========== Countdown ========== */
.countdown-item {
    text-align: center;
    padding: 15px;
}
.countdown-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--cor-acento);
}
.countdown-label {
    font-size: 0.85rem;
    color: var(--cor-texto-secundario);
    text-transform: uppercase;
}

/* ========== Timeline ========== */
.timeline-item {
    position: relative;
    padding-left: 40px;
    padding-bottom: 20px;
    border-left: 2px solid var(--cor-primaria);
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--cor-primaria);
}
.timeline-time {
    font-weight: 700;
    color: var(--cor-primaria);
}

/* ========== Upload area ========== */
.upload-area {
    border: 2px dashed var(--cor-borda);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}
.upload-area:hover, .upload-area.dragover {
    border-color: var(--cor-primaria);
    background-color: var(--cor-primaria-light);
}

/* ========== Responsive ========== */
@media (max-width: 991.98px) {
    #sidebar-wrapper {
        transform: translateX(-100%);
        width: 280px;
    }
    #sidebar-wrapper.show {
        transform: translateX(0);
    }
    #page-content-wrapper {
        margin-left: 0;
    }
    .sidebar-overlay.show {
        display: block;
    }
}

@media (max-width: 575.98px) {
    .stat-card .stat-number { font-size: 1.5rem; }
    .hero-section { padding: 60px 0 40px; }
    .countdown-number { font-size: 1.8rem; }
    .btn { width: 100%; margin-bottom: 8px; }
    .btn-group .btn { width: auto; margin-bottom: 0; }
    .modal-dialog { margin: 0; min-height: 100vh; }
    .modal-content { min-height: 100vh; border-radius: 0; }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .hero-section h1 { font-size: 2rem; }
}

/* ========== Loading ========== */
.btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}
.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ========== Print ========== */
@media print {
    .navbar, #sidebar-wrapper, .breadcrumb, .btn { display: none !important; }
    #page-content-wrapper { margin-left: 0 !important; }
}