:root {
    --bg-color: #f0f4f8;
    --text-main: #1a202c;
    --text-muted: #718096;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(255, 255, 255, 0.3);
    --primary: #2d6a4f;
    --primary-hover: #1b4332;
    --success: #38a169;
    --success-hover: #2f855a;
    --danger: #e53e3e;
    --danger-hover: #c53030;
    --warning: #dd6b20;
    --accent: #805ad5;
    --radius-lg: 16px;
    --radius-md: 10px;
    --shadow-soft: 0 8px 32px rgba(31, 38, 135, 0.05);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

[data-theme="dark"] {
    --bg-color: #1a202c;
    --text-main: #f7fafc;
    --text-muted: #a0aec0;
    --card-bg: rgba(45, 55, 72, 0.75);
    --card-border: rgba(255, 255, 255, 0.08);
    --primary: #48bb78;
    --primary-hover: #68d391;
    --success: #48bb78;
    --danger: #fc8181;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    transition: var(--transition);
    background-image: radial-gradient(circle at top right, rgba(45, 106, 79, 0.08), transparent 400px),
                      radial-gradient(circle at bottom left, rgba(128, 90, 213, 0.06), transparent 400px);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* ============ LOGIN ============ */
.login-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-bg-img {
    position: absolute;
    inset: 0;
    background: url('imagensegunda.png') center center / cover no-repeat;
    filter: brightness(0.7);
    z-index: 0;
}

.login-box {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px 35px;
    width: 90%;
    max-width: 380px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: loginAppear 0.6s ease forwards;
}

@keyframes loginAppear {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-logo {
    width: 70px;
    margin-bottom: 15px;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

.login-box h2 {
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.login-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: 25px;
}

.login-field {
    margin-bottom: 18px;
    text-align: left;
}

.login-field label {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.login-field input {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.login-field input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.login-field input:focus {
    outline: none;
    border-color: #48bb78;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(72, 187, 120, 0.2);
}

.login-error {
    background: rgba(229, 62, 62, 0.2);
    color: #fc8181;
    padding: 10px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

.login-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #38a169, #48bb78);
    color: white;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(56, 161, 105, 0.35);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(56, 161, 105, 0.5);
}

.login-btn:active {
    transform: translateY(0);
}

/* ============ APP CONTAINER ============ */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 10px 0;
    border-bottom: 1px solid var(--card-border);
    flex-wrap: wrap;
    gap: 10px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo {
    height: 42px;
}

.logo-area h1 {
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.logo-area .subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 400;
}

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

.header-btn {
    text-decoration: none;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    color: white;
    transition: var(--transition);
}

.header-btn-stats { background: var(--success); }
.header-btn-id { background: var(--primary); }

.header-btn:hover { transform: translateY(-2px); opacity: 0.9; }

.btn-icon {
    background: transparent;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    padding: 6px;
    border-radius: 50%;
    transition: var(--transition);
}

.btn-icon:hover { background: rgba(0,0,0,0.05); transform: scale(1.1); }
[data-theme="dark"] .btn-icon:hover { background: rgba(255,255,255,0.1); }

/* ============ GLASS PANEL ============ */
.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: 20px;
}

/* ============ PANTALLAS ============ */
.pantalla {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.pantalla.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.pantalla-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
    color: var(--text-main);
}

/* ============ GRID OPCIONES ============ */
.grid-opciones {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.btn-opcion {
    background: var(--card-bg);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    padding: 25px 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-soft);
    gap: 8px;
    text-align: center;
}

.btn-opcion .icon { font-size: 2.5rem; transition: transform 0.3s ease; }
.btn-opcion .text { font-size: 1rem; font-weight: 700; color: var(--text-main); }
.btn-opcion .desc { font-size: 0.75rem; color: var(--text-muted); font-weight: 400; }

.btn-opcion:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.btn-opcion:hover .icon { transform: scale(1.15); }

.btn-opcion-personal:hover { border-color: #3182ce; }
.btn-opcion-publico:hover { border-color: #805ad5; }
.btn-opcion-proveedor:hover { border-color: #dd6b20; }
.btn-opcion-otra:hover { border-color: #38a169; }

/* ============ RESUMEN RÁPIDO ============ */
.resumen-rapido {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 25px;
}

.resumen-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 15px 10px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--card-border);
}

.resumen-num {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
}

.resumen-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============ FORMULARIO ============ */
.form-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    gap: 10px;
}

.btn-volver-new {
    background: none;
    border: 1px solid var(--card-border);
    padding: 8px 15px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}

.btn-volver-new:hover { background: rgba(0,0,0,0.05); color: var(--text-main); }

.form-header .pantalla-title { margin-bottom: 0; flex: 1; text-align: left; }

/* QR Section */
.qr-section { margin-bottom: 15px; text-align: center; }

.btn-qr {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    width: 100%;
}

.btn-qr:hover { background-color: #6b46c1; transform: translateY(-2px); }

.qr-container {
    margin-top: 15px;
    padding: 10px;
    background: rgba(0, 0, 0, 0.03);
    border-radius: var(--radius-md);
    border: 2px dashed var(--card-border);
    animation: fadeIn 0.3s ease;
}

[data-theme="dark"] .qr-container { background: rgba(0, 0, 0, 0.2); }

.reader-box {
    width: 100%;
    max-width: 350px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.reader-box img[alt="Info icon"], .reader-box a { display: none !important; }

.qr-help-text {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Form */
.form-registro { display: flex; flex-direction: column; gap: 15px; }

.form-row { display: flex; gap: 15px; }

.form-group { flex: 1; }

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.85rem;
}

input, select, textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.5);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea { background-color: rgba(0, 0, 0, 0.2); }

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.15);
}

.input-with-button { display: flex; gap: 8px; }

.btn-action {
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    padding: 0 18px;
    transition: var(--transition);
    white-space: nowrap;
}

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

/* Estado alerta */
.estado-alerta {
    padding: 12px;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    animation: fadeIn 0.3s ease;
    font-size: 0.9rem;
}

.estado-alerta.hidden { display: none; }

.estado-alerta.dentro {
    background-color: rgba(56, 161, 105, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.estado-alerta.retirado {
    background-color: rgba(229, 62, 62, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* Botones de acción */
.form-actions { display: flex; gap: 12px; }

.btn-entrada, .btn-salida {
    flex: 1;
    padding: 16px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.btn-entrada { background-color: var(--success); }
.btn-entrada:hover { background-color: var(--success-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(56, 161, 105, 0.3); }

.btn-salida { background-color: var(--danger); }
.btn-salida:hover { background-color: var(--danger-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(229, 62, 62, 0.3); }

/* ============ TOASTS ============ */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 10000;
}

.toast {
    min-width: 280px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    animation: slideIn 0.3s ease forwards;
    font-size: 0.9rem;
}

.toast.success { background-color: var(--success); }
.toast.error { background-color: var(--danger); }
.toast.warning { background-color: var(--warning); }
.toast.closing { animation: slideOut 0.3s ease forwards; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* Select2 overrides */
.select2-container .select2-selection--single {
    height: 48px;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md) !important;
    padding: 8px 12px;
    background-color: rgba(255, 255, 255, 0.5);
    font-size: 1rem;
}

.select2-container--default .select2-selection--single .select2-selection__arrow { height: 46px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .grid-opciones {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .btn-opcion {
        padding: 18px 10px;
    }

    .btn-opcion .icon { font-size: 2rem; }
    .btn-opcion .text { font-size: 0.85rem; }

    .form-row { flex-direction: column; gap: 12px; }
    .form-actions { flex-direction: column; }

    .resumen-rapido { grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .resumen-num { font-size: 1.4rem; }
    .resumen-label { font-size: 0.65rem; }

    .login-img { max-width: 95%; max-height: 45vh; }
    .btn-comenzar-login { padding: 16px 35px; font-size: 1rem; }
}

@media (max-width: 420px) {
    .app-container { padding: 10px; }
    .logo-area h1 { font-size: 1.1rem; }
    .header-logo { height: 35px; }
    .header-btn { font-size: 0.75rem; padding: 6px 10px; }
    .btn-opcion { padding: 15px 8px; }
    .btn-opcion .icon { font-size: 1.5rem; }
    .btn-opcion .text { font-size: 0.8rem; }
    .btn-opcion .desc { display: none; }
}