/* ==============================================================================
   ESTILOS INSTITUCIONALES DASHBOARD PWA & TELEGRAM MINI APP (TMA)
   Reglas de Diseño (PROJECT_RULES.md):
   - Principal (Header/Barras): #2563EB
   - Acento (Botones/Destacados): #F4B400 (Hover: #D99B00)
   - Login Overlay: #0F172A (Fundo Oscuro Elegante)
   - Fondos: #FFFFFF | Texto: #000000 / #4B5563
   - Tipografía: Nexa Heavy / sans-serif
   ============================================================================== */

@font-face {
    font-family: 'Nexa Heavy';
    src: local('Nexa Heavy'), local('Nexa-Heavy'), url('https://fonts.cdnfonts.com/s/15026/NexaHeavy.woff') format('woff');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

:root {
    --color-primary: #2563EB;
    --color-primary-dark: #1D4ED8;
    --color-accent: #F4B400;
    --color-accent-hover: #D99B00;
    --color-login-bg: #0F172A;
    --color-login-card: #1E293B;
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F8FAFC;
    --color-text: #000000;
    --color-text-secondary: #4B5563;
    --color-border: #E2E8F0;
    --color-danger: #DC2626;
    --color-success: #16A34A;
    --font-main: 'Nexa Heavy', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    min-height: 100vh;
}

/* Telegram User Banner */
.telegram-user-banner {
    background-color: #EFF6FF;
    border-bottom: 1px solid #BFDBFE;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tg-user-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.tg-avatar {
    font-size: 1.5rem;
}

.tg-id-text {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    display: block;
}

.tg-badge {
    background-color: #DCFCE7;
    color: var(--color-success);
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}

/* TMA Card & Dropzone */
.tma-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 1.75rem;
    max-width: 650px;
    margin: 0 auto;
}

.drop-zone {
    border: 2px dashed var(--color-primary);
    background-color: #EFF6FF;
    border-radius: 12px;
    padding: 2rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 1.25rem;
}

.drop-zone:hover, .drop-zone.dragover {
    background-color: #DBEAFE;
    border-color: var(--color-primary-dark);
}

.upload-icon {
    font-size: 2.8rem;
    display: block;
    margin-bottom: 0.5rem;
}

.drop-text {
    font-size: 0.95rem;
    color: var(--color-text);
}

.drop-subtext {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    display: block;
    margin-top: 0.4rem;
}

/* Botones */
.button-group {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.btn {
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 10px;
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #FFFFFF;
}

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

.btn-accent {
    background-color: var(--color-accent);
    color: #000000;
}

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

.btn-danger {
    background-color: #FEE2E2;
    color: var(--color-danger);
    border: 1px solid #FCA5A5;
}

.btn-danger:hover {
    background-color: #FCA5A5;
}

.btn-full {
    width: 100%;
}

.recording-box {
    margin-top: 1rem;
    padding: 1rem;
    background: #FEF2F2;
    border: 1px solid #FCA5A5;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.recording-pulse {
    width: 14px;
    height: 14px;
    background-color: #DC2626;
    border-radius: 50%;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.progress-container {
    margin-top: 1.25rem;
}

.progress-bar {
    height: 8px;
    background-color: var(--color-accent);
    width: 0%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-status {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: 0.5rem;
}

/* Login Overlay */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-login-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    padding: 1rem;
}

.login-card {
    background-color: var(--color-login-card);
    border: 1px solid #334155;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    color: #F8FAFC;
    text-align: center;
}

.login-brand {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.login-subtitle {
    font-size: 0.8rem;
    color: #94A3B8;
    margin-top: 0.3rem;
}

.security-badge {
    display: inline-block;
    background-color: rgba(37, 99, 235, 0.2);
    color: #60A5FA;
    border: 1px solid #2563EB;
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    margin: 1.25rem 0;
    font-weight: 700;
}

.login-form {
    text-align: left;
    margin-top: 1rem;
}

.login-form .form-group {
    margin-bottom: 1.25rem;
}

.login-form label {
    display: block;
    font-size: 0.85rem;
    color: #CBD5E1;
    margin-bottom: 0.4rem;
}

.login-form input {
    background-color: #0F172A;
    border: 1px solid #334155;
    color: #FFFFFF;
}

.btn-login {
    font-size: 1rem;
    padding: 0.85rem;
    margin-top: 0.5rem;
}

.login-footer {
    margin-top: 1.75rem;
    font-size: 0.75rem;
    color: #64748B;
}

.dashboard-app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* Navbar */
.navbar {
    background-color: var(--color-primary);
    color: #FFFFFF;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.brand-title {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.brand-subtitle {
    font-size: 0.8rem;
    opacity: 0.9;
    display: block;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.system-status {
    background: rgba(255, 255, 255, 0.15);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #4ADE80;
    border-radius: 50%;
}

.btn-logout {
    background-color: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 0.4rem 0.85rem;
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.8rem;
    cursor: pointer;
    transition: background 0.2s ease;
}

.btn-logout:hover {
    background-color: #DC2626;
    border-color: #DC2626;
}

.tab-navigation {
    background-color: var(--color-bg-secondary);
    border-bottom: 2px solid var(--color-border);
    display: flex;
    gap: 0.5rem;
    padding: 0 2rem;
    overflow-x: auto;
}

.nav-tab {
    background: none;
    border: none;
    padding: 1rem 1.25rem;
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-tab:hover {
    color: var(--color-primary);
}

.nav-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.badge-count {
    background-color: var(--color-accent);
    color: #000000;
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
}

.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.view-panel {
    display: none;
}

.view-panel.active {
    display: block;
}

.panel-header {
    margin-bottom: 1.5rem;
}

.panel-header h2 {
    font-size: 1.4rem;
    color: var(--color-primary);
}

.panel-header p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.meeting-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.users-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.5rem;
}

.card-form {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-control, .form-select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-main);
    margin-top: 0.3rem;
}

.history-table-container, .users-table-container {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
    padding: 0.85rem 1rem;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--color-border);
}

.data-table td {
    padding: 0.85rem 1rem;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--color-border);
}

.rag-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    min-height: 480px;
}

.rag-sidebar {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1rem;
}

.chat-window {
    border: 1px solid var(--color-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    max-height: 400px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-bubble {
    padding: 0.85rem 1.1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    max-width: 80%;
    line-height: 1.4;
}

.chat-bubble.bot {
    background-color: #EFF6FF;
    color: #1E3A8A;
    align-self: flex-start;
    border: 1px solid #BFDBFE;
}

.chat-bubble.user {
    background-color: var(--color-accent);
    color: #000000;
    align-self: flex-end;
}

.chat-input-form {
    display: flex;
    padding: 1rem;
    border-top: 1px solid var(--color-border);
    gap: 0.5rem;
}

.chat-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-main);
}

.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 0.85rem 1.25rem;
    border-radius: 8px;
    color: #FFFFFF;
    font-size: 0.85rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.3);
}

.toast.success { background-color: var(--color-success); }
.toast.error { background-color: var(--color-danger); }

.main-footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
}