/* ==================== RESET + BASE ==================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --ink:          #0F172A;
    --graphite:     #1E293B;
    --slate:        #475569;
    --mist:         #94A3B8;
    --line:         #E2E8F0;
    --wash:         #F8FAFC;
    --paper:        #FFFFFF;
    --amarillo:     #ffd000;
    --amarillo-dark:#e6bb00;
    --amarillo-light:#FFF9D6;
    --success:      #059669;
    --success-light:#D1FAE5;
    --warn:         #F59E0B;
    --warn-light:   #FEF3C7;
    --danger:       #DC2626;
    --danger-light: #FEE2E2;
    --violet:       #7C3AED;
    --violet-light: #EDE9FE;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--wash);
    line-height: 1.5;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; font-size: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ==================== LOGIN ==================== */
.login-body {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: var(--ink); padding: 20px;
}
.login-container {
    width: 100%; max-width: 380px;
    background: var(--paper);
    border-radius: 16px; padding: 40px 36px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    border-top: 4px solid var(--amarillo);
}
.login-brand { text-align: center; margin-bottom: 32px; }
.login-logo { font-size: 36px; font-weight: 900; color: var(--amarillo); letter-spacing: 3px; }
.login-logo span { color: var(--amarillo); }
.login-sub { color: var(--slate); font-size: 12px; margin-top: 4px; text-transform: uppercase; letter-spacing: 1px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 11px; font-weight: 600; color: var(--slate); text-transform: uppercase; letter-spacing: 0.05em; }
.form-group input {
    padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px;
    background: var(--paper); color: var(--ink); outline: none; transition: border-color 0.15s;
}
.form-group input:focus { border-color: var(--amarillo); box-shadow: 0 0 0 3px var(--amarillo-light); }
.btn-primary {
    padding: 11px 16px; background: var(--amarillo); color: var(--ink);
    border-radius: 8px; font-weight: 700; transition: background 0.15s; width: 100%;
}
.btn-primary:hover { background: var(--amarillo-dark); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.error-msg { color: var(--danger); font-size: 13px; min-height: 18px; text-align: center; }
.login-footer { text-align: center; margin-top: 24px; color: var(--mist); font-size: 11px; }
.login-form { display: flex; flex-direction: column; gap: 16px; }

/* ==================== LAYOUT ==================== */
.app-layout {
    display: grid;
    grid-template-columns: 230px 360px 1fr;
    grid-template-rows: 52px 1fr;
    grid-template-areas: "top top top" "sidebar bandeja chat";
    height: 100vh; overflow: hidden;
}

/* ==================== TOPBAR ==================== */
.topbar {
    grid-area: top;
    display: flex; align-items: center;
    padding: 0 20px;
    background: var(--ink);
    color: var(--paper);
    border-bottom: 3px solid var(--amarillo);
    gap: 16px;
}
.topbar-brand { font-size: 18px; font-weight: 900; letter-spacing: 2px; color: var(--amarillo); }
.topbar-brand span { color: var(--amarillo); }
.topbar-status {
    font-size: 12px; padding: 3px 10px; border-radius: 999px;
    background: var(--graphite); color: var(--mist);
}
.topbar-status.connected { background: rgba(5,150,105,0.2); color: #34D399; }
.topbar-status.disconnected { background: rgba(220,38,38,0.2); color: #FCA5A5; }
.topbar-spacer { flex: 1; }
.topbar-user { font-size: 13px; color: var(--mist); display: flex; align-items: center; gap: 10px; }
.topbar-user .user-name { color: var(--paper); font-weight: 500; }
.btn-logout { color: var(--mist); font-size: 12px; padding: 4px 8px; border-radius: 6px; }
.btn-logout:hover { color: var(--paper); background: var(--graphite); }

/* ==================== SIDEBAR ==================== */
.sidebar {
    grid-area: sidebar;
    background: var(--paper);
    border-right: 1px solid var(--line);
    overflow-y: auto; padding: 16px 0;
}
.sidebar-section { margin-bottom: 24px; }
.sidebar-title {
    font-size: 11px; font-weight: 600; color: var(--mist);
    text-transform: uppercase; letter-spacing: 0.08em;
    padding: 0 20px; margin-bottom: 8px;
}
.sidebar-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 9px 20px; color: var(--slate); font-size: 13px;
    cursor: pointer; border-left: 3px solid transparent; transition: background 0.1s;
}
.sidebar-item:hover { background: var(--wash); }
.sidebar-item.active {
    background: var(--amarillo-light);
    color: var(--ink);
    border-left-color: var(--amarillo);
    font-weight: 600;
}
.sidebar-badge {
    font-size: 11px; padding: 1px 8px; border-radius: 999px;
    background: var(--line); color: var(--slate);
    font-weight: 600; min-width: 20px; text-align: center;
}
.sidebar-item.active .sidebar-badge { background: var(--amarillo); color: var(--ink); }
.sidebar-badge.alert { background: var(--danger); color: var(--paper); }

/* ==================== BANDEJA ==================== */
.bandeja {
    grid-area: bandeja;
    background: var(--paper);
    border-right: 1px solid var(--line);
    display: flex; flex-direction: column; overflow: hidden;
}
.bandeja-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    display: flex; flex-direction: column; gap: 10px;
}
.bandeja-title { display: flex; align-items: center; justify-content: space-between; }
.bandeja-title h2 { font-size: 15px; font-weight: 600; }
.bandeja-search {
    display: flex; align-items: center;
    background: var(--wash); border-radius: 8px;
    padding: 0 10px; border: 1px solid transparent;
}
.bandeja-search:focus-within { border-color: var(--amarillo); background: var(--paper); }
.bandeja-search input {
    flex: 1; background: transparent; border: none; outline: none;
    padding: 8px 6px; font-size: 13px;
}
.conv-list { flex: 1; overflow-y: auto; }
.conv-item {
    padding: 12px 16px; border-bottom: 1px solid var(--line);
    cursor: pointer; transition: background 0.1s; position: relative;
}
.conv-item:hover { background: var(--wash); }
.conv-item.selected { background: var(--amarillo-light); }
.conv-item.unread { background: #FFFBEB; }
.conv-item.unread:hover { background: #FEF9C3; }
.conv-item.unread.selected { background: var(--amarillo-light); }
.conv-item-top {
    display: flex; align-items: center; justify-content: space-between;
    gap: 8px; margin-bottom: 3px;
}
.conv-item-name { font-weight: 600; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conv-item.unread .conv-item-name { font-weight: 700; }
.conv-item-time { font-size: 11px; color: var(--mist); white-space: nowrap; flex-shrink: 0; }
.conv-item-preview { font-size: 12px; color: var(--slate); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conv-item.unread .conv-item-preview { color: var(--ink); font-weight: 500; }
.conv-item-badges { display: flex; gap: 4px; margin-top: 5px; }

.badge {
    font-size: 10px; padding: 2px 7px; border-radius: 999px;
    font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
}
.badge-nuevo       { background: var(--amarillo-light); color: #92400E; }
.badge-contactado  { background: #DBEAFE; color: #1E40AF; }
.badge-interesado  { background: var(--amarillo-light); color: var(--ink); }
.badge-seguimiento { background: var(--warn-light); color: #92400E; }
.badge-cerrado     { background: var(--success-light); color: #064E3B; }
.badge-no_interesado { background: #F1F5F9; color: var(--slate); }

.empty-state { padding: 40px 20px; text-align: center; color: var(--mist); font-size: 13px; }

/* ==================== CHAT ==================== */
.chat {
    grid-area: chat;
    display: flex; flex-direction: column;
    background: var(--wash); overflow: hidden;
}
.chat-empty {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    color: var(--mist); text-align: center; padding: 40px;
}
.chat-empty-icon { font-size: 48px; opacity: 0.3; margin-bottom: 12px; }

.chat-header {
    padding: 12px 20px; background: var(--paper);
    border-bottom: 1px solid var(--line);
    display: flex; align-items: center; gap: 14px;
}
.chat-header-info { flex: 1; min-width: 0; }
.chat-header-name { font-weight: 600; font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-header-meta { font-size: 12px; color: var(--slate); display: flex; gap: 10px; margin-top: 2px; }
.chat-header-actions { display: flex; gap: 8px; align-items: center; }

.chat-body {
    flex: 1; overflow-y: auto;
    padding: 12px 60px;
    display: flex; flex-direction: column; gap: 2px;
    background: #e5ddd5;
}

.msg {
    max-width: 65%; padding: 6px 9px 8px;
    border-radius: 7.5px; font-size: 14px;
    word-wrap: break-word; line-height: 1.4; position: relative;
    box-shadow: 0 1px 0.5px rgba(0,0,0,0.13);
}
.msg-text { white-space: pre-wrap; }
.msg-entrante { align-self: flex-start; background: #fff; color: #111b21; border-top-left-radius: 0; }
.msg-saliente  { align-self: flex-end; background: #d9fdd3; color: #111b21; border-top-right-radius: 0; }
.msg-saliente-bot { align-self: flex-end; background: #FFF9D6; color: #111; border-top-right-radius: 0; }
.msg-time { font-size: 11px; color: #667781; text-align: right; margin-top: 2px; }

/* INPUT ÁREA */
.chat-input-area {
    background: var(--paper);
    border-top: 1px solid var(--line);
    display: flex; flex-direction: column; gap: 0;
}
.quick-template-bar {
    padding: 8px 16px 0;
    display: flex; gap: 8px; align-items: center;
}
.quick-template-bar select {
    flex: 1; padding: 6px 10px; border: 1px solid var(--line);
    border-radius: 6px; font-size: 12px; background: var(--wash); color: var(--ink); outline: none;
}
.quick-template-bar select:focus { border-color: var(--amarillo); }
.chat-input-row { display: flex; align-items: flex-end; padding: 8px 16px 12px; gap: 10px; }
.chat-input-row textarea {
    flex: 1; resize: none; border: 1px solid var(--line); border-radius: 10px;
    padding: 10px 14px; font-size: 14px; outline: none;
    background: var(--wash); max-height: 120px; line-height: 1.5;
    transition: border-color 0.15s;
}
.chat-input-row textarea:focus { border-color: var(--amarillo); background: var(--paper); }
.btn-send {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--amarillo); color: var(--ink);
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; font-weight: bold; flex-shrink: 0;
    transition: background 0.15s;
}
.btn-send:hover { background: var(--amarillo-dark); }
.btn-send:disabled { opacity: 0.4; cursor: not-allowed; }

/* SELECT ESTADO */
.select-estado {
    padding: 5px 10px; border: 1px solid var(--line); border-radius: 6px;
    font-size: 12px; font-weight: 500; background: var(--wash); color: var(--ink); outline: none;
}
.select-estado:focus { border-color: var(--amarillo); }

/* ==================== PANEL CONTENT (vistas laterales) ==================== */
.panel-content {
    grid-column: 2 / -1; grid-row: 2;
    overflow-y: auto; padding: 32px 40px;
}
.panel-content h1 { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.panel-content .subtitle { color: var(--slate); font-size: 13px; margin-bottom: 24px; }

/* ==================== STATS ==================== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card {
    background: var(--paper); border: 1px solid var(--line);
    border-radius: 10px; padding: 18px;
}
.stat-card .label { font-size: 11px; color: var(--mist); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--ink); }
.stat-card.amarillo { border-top: 3px solid var(--amarillo); }
.stat-card.amarillo .value { color: #92400E; }
.stat-card.verde .value { color: var(--success); }
.stat-card.azul .value { color: #2563EB; }

/* ==================== TABLA ==================== */
.table-wrapper {
    background: var(--paper); border: 1px solid var(--line);
    border-radius: 10px; overflow: hidden; margin-bottom: 24px;
}
.table-wrapper-header {
    padding: 14px 20px; border-bottom: 1px solid var(--line);
    display: flex; align-items: center; justify-content: space-between;
    font-size: 13px; font-weight: 600;
}
table.data { width: 100%; border-collapse: collapse; }
table.data th {
    font-size: 11px; color: var(--mist); text-transform: uppercase;
    letter-spacing: 0.05em; padding: 10px 20px; text-align: left;
    border-bottom: 1px solid var(--line); background: var(--wash);
}
table.data td { padding: 11px 20px; font-size: 13px; border-bottom: 1px solid var(--line); }
table.data tr:last-child td { border-bottom: none; }
table.data tr:hover td { background: var(--wash); }

/* ==================== BOTONES ==================== */
.btn-accent {
    padding: 8px 14px; background: var(--amarillo); color: var(--ink);
    border-radius: 8px; font-weight: 700; font-size: 13px; transition: background 0.15s;
}
.btn-accent:hover { background: var(--amarillo-dark); }
.btn-secondary {
    padding: 8px 14px; background: var(--paper); color: var(--slate);
    border: 1px solid var(--line); border-radius: 8px; font-weight: 500; font-size: 13px;
    transition: all 0.15s;
}
.btn-secondary:hover { background: var(--wash); color: var(--ink); border-color: var(--mist); }
.btn-sm { padding: 5px 10px !important; font-size: 12px !important; }

/* ==================== IMPORT ZONE ==================== */
.import-zone {
    border: 2px dashed var(--line); border-radius: 10px;
    padding: 36px; text-align: center; cursor: pointer;
    transition: all 0.2s; background: var(--wash);
}
.import-zone:hover, .import-zone.drag { border-color: var(--amarillo); background: var(--amarillo-light); }
.import-zone .icon { font-size: 36px; margin-bottom: 10px; }
.import-zone p { color: var(--slate); font-size: 14px; margin-bottom: 6px; }
.import-zone strong { color: var(--ink); }

/* ==================== MODALES ==================== */
.modal-backdrop {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.4); z-index: 200;
    align-items: center; justify-content: center;
}
.modal-backdrop.open { display: flex; }
.modal {
    background: var(--paper); border: 1px solid var(--line);
    border-radius: 14px; padding: 28px; width: 90%; max-width: 480px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}
.modal h2 { font-size: 16px; font-weight: 600; margin-bottom: 20px; }
.modal .form-group { margin-bottom: 16px; }
.modal .form-group label { display: block; font-size: 11px; font-weight: 600; color: var(--slate); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.modal .form-group input,
.modal .form-group select,
.modal .form-group textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--line);
    border-radius: 8px; background: var(--paper); color: var(--ink); outline: none;
    transition: border-color 0.15s;
}
.modal .form-group input:focus,
.modal .form-group select:focus,
.modal .form-group textarea:focus { border-color: var(--amarillo); box-shadow: 0 0 0 3px var(--amarillo-light); }
.modal .form-group textarea { resize: vertical; min-height: 100px; }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ==================== TOAST ==================== */
.toast-container { position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column; gap: 8px; z-index: 999; }
.toast {
    padding: 12px 18px; background: var(--paper); border: 1px solid var(--line);
    border-radius: 8px; font-size: 13px; box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    animation: slideIn 0.25s ease;
}
.toast.ok { border-left: 3px solid var(--success); }
.toast.err { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--amarillo); }
@keyframes slideIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ==================== MISC ==================== */
.muted { color: var(--mist); font-size: 12px; }
code { font-family: monospace; background: var(--wash); border: 1px solid var(--line); padding: 1px 5px; border-radius: 4px; font-size: 12px; }