/* ============================================================
   soporte.daostek.com — Estilos v2 (Rediseño moderno)
   ============================================================ */
* { margin:0; padding:0; box-sizing:border-box; }

:root {
    --black:#0a0a0a;
    --white:#ffffff;
    --bg:#f7f8fc;
    --surface:#ffffff;
    --border:#e8ebf2;
    --text:#0f172a;
    --text-muted:#64748b;
    --text-soft:#94a3b8;

    --blue:#3b82f6;
    --blue-dark:#2563eb;
    --green:#10b981;
    --orange:#f59e0b;
    --red:#ef4444;
    --purple:#8b5cf6;

    --radius-sm:10px;
    --radius:14px;
    --radius-lg:20px;
    --radius-xl:28px;

    --shadow-xs:0 1px 2px rgba(15,23,42,0.04);
    --shadow-sm:0 2px 8px rgba(15,23,42,0.06);
    --shadow:0 8px 24px rgba(15,23,42,0.08);
    --shadow-lg:0 20px 40px rgba(15,23,42,0.12);
    --shadow-glow:0 0 0 4px rgba(59,130,246,0.12);

    --transition:all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body { height:100%; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
}

/* ============ LOGIN ============ */
.login-wrap {
    display:grid;
    grid-template-columns:1.15fr 1fr;
    min-height:100vh;
    width:100vw;
    overflow:hidden;
    background: var(--bg);
}

.login-visual {
    position:relative;
    background:
        radial-gradient(circle at 15% 15%, rgba(59,130,246,0.45) 0%, transparent 55%),
        radial-gradient(circle at 85% 85%, rgba(139,92,246,0.40) 0%, transparent 55%),
        linear-gradient(145deg, #05070d 0%, #0f1424 50%, #05070d 100%);
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    padding:60px;
    overflow:hidden;
}

.login-visual::before {
    content:'';
    position:absolute;
    inset:0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size:52px 52px;
    mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
}

.login-visual .glow {
    position:absolute;
    width:420px;
    height:420px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(59,130,246,0.55), transparent 70%);
    filter:blur(90px);
    top:18%;
    left:12%;
    animation: floatGlow 10s ease-in-out infinite;
}

.login-visual .glow.second {
    background:radial-gradient(circle, rgba(139,92,246,0.50), transparent 70%);
    top:auto;
    left:auto;
    bottom:12%;
    right:12%;
    animation-delay:-5s;
}

@keyframes floatGlow {
    0%,100% { transform: translate(0,0) scale(1); opacity:0.9; }
    50%     { transform: translate(40px,-40px) scale(1.15); opacity:1; }
}

.login-visual .logo-big {
    position:relative;
    width:150px;
    height:150px;
    border-radius:50%;
    background:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    overflow:hidden;
    box-shadow:
        0 0 0 1px rgba(255,255,255,0.1),
        0 0 0 12px rgba(255,255,255,0.04),
        0 0 0 26px rgba(255,255,255,0.02),
        0 30px 70px rgba(0,0,0,0.6),
        0 0 60px rgba(59,130,246,0.35);
    z-index:2;
    animation: pulseLogo 6s ease-in-out infinite;
}

@keyframes pulseLogo {
    0%,100% { box-shadow:
        0 0 0 1px rgba(255,255,255,0.1),
        0 0 0 12px rgba(255,255,255,0.04),
        0 0 0 26px rgba(255,255,255,0.02),
        0 30px 70px rgba(0,0,0,0.6),
        0 0 60px rgba(59,130,246,0.35); }
    50% { box-shadow:
        0 0 0 1px rgba(255,255,255,0.15),
        0 0 0 14px rgba(255,255,255,0.05),
        0 0 0 30px rgba(255,255,255,0.03),
        0 30px 70px rgba(0,0,0,0.6),
        0 0 90px rgba(139,92,246,0.5); }
}

.login-visual .logo-big img { width:100%; height:100%; object-fit:cover; }

.login-visual .brand-text { position:relative; margin-top:36px; text-align:center; z-index:2; }

.login-visual .brand-text h1 {
    color:#fff;
    font-size:2.4rem;
    font-weight:900;
    letter-spacing:14px;
    text-transform:uppercase;
    background: linear-gradient(180deg, #fff 0%, #94a3b8 120%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-visual .brand-text p {
    color:rgba(255,255,255,0.45);
    font-size:0.72rem;
    letter-spacing:7px;
    text-transform:uppercase;
    margin-top:8px;
    font-weight:500;
}

.login-visual .features {
    position:relative;
    margin-top:56px;
    display:flex;
    flex-direction:column;
    gap:16px;
    z-index:2;
    padding: 22px 28px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.login-visual .feature {
    display:flex;
    align-items:center;
    gap:14px;
    color:rgba(255,255,255,0.75);
    font-size:0.85rem;
    font-weight:500;
}

.login-visual .feature .dot {
    width:8px;
    height:8px;
    border-radius:50%;
    background:#3b82f6;
    box-shadow:0 0 12px #3b82f6, 0 0 4px #3b82f6;
    flex-shrink:0;
}

.login-form-side {
    background: var(--bg);
    display:flex;
    align-items:center;
    justify-content:center;
    padding:40px;
    position:relative;
}

.login-box {
    width:100%;
    max-width:420px;
    background: var(--surface);
    padding: 44px 40px;
    border-radius: var(--radius-xl);
    box-shadow:
        0 1px 2px rgba(15,23,42,0.04),
        0 12px 40px rgba(15,23,42,0.08),
        0 0 0 1px rgba(15,23,42,0.03);
}

.login-box .mobile-logo {
    display:none;
    width:80px;
    height:80px;
    border-radius:50%;
    background:#fff;
    border:3px solid var(--black);
    overflow:hidden;
    margin:0 auto 24px;
}

.login-box .mobile-logo img { width:100%; height:100%; object-fit:cover; }

.welcome { margin-bottom:30px; }

.welcome .eyebrow {
    display:inline-block;
    font-size:0.68rem;
    font-weight:700;
    letter-spacing:3px;
    text-transform:uppercase;
    color: var(--blue-dark);
    padding:6px 14px;
    background: linear-gradient(135deg, rgba(59,130,246,0.10), rgba(139,92,246,0.10));
    border: 1px solid rgba(59,130,246,0.15);
    border-radius: 30px;
    margin-bottom:16px;
}

.welcome h2 {
    font-size:1.85rem;
    font-weight:800;
    letter-spacing:-0.6px;
    margin-bottom:8px;
    color: var(--text);
}

.welcome p {
    color: var(--text-muted);
    font-size:0.9rem;
    line-height:1.55;
}

.input-group { position:relative; margin-bottom:16px; }

.input-group input {
    width:100%;
    padding:16px 18px 16px 50px;
    border:1.5px solid var(--border);
    border-radius: var(--radius);
    font-size:14px;
    font-family: inherit;
    background: #fafbfd;
    color: var(--text);
    transition: var(--transition);
}

.input-group input::placeholder { color: #b0b8c7; }

.input-group input:hover {
    border-color:#d1d8e3;
    background:#fff;
}

.input-group input:focus {
    outline:none;
    border-color: var(--blue);
    background:#fff;
    box-shadow: var(--shadow-glow);
}

.input-group .field-icon {
    position:absolute;
    left:18px;
    top:50%;
    transform:translateY(-50%);
    width:20px;
    height:20px;
    stroke:#a0a9ba;
    fill:none;
    stroke-width:1.8;
    stroke-linecap:round;
    stroke-linejoin:round;
    pointer-events:none;
    transition: var(--transition);
}

.input-group input:focus + .field-icon { stroke: var(--blue); }

.login-box button[type="submit"],
.btn-primary {
    width:100%;
    padding:16px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color:#fff;
    border:none;
    border-radius: var(--radius);
    font-size:13px;
    font-weight:700;
    letter-spacing:2px;
    text-transform:uppercase;
    cursor:pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(15,23,42,0.2);
    position:relative;
    overflow:hidden;
}

.login-box button[type="submit"]::after {
    content:'';
    position:absolute;
    inset:0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.1) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.login-box button[type="submit"]:hover,
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(15,23,42,0.3);
}

.login-box button[type="submit"]:hover::after { transform: translateX(100%); }

.login-box button[type="submit"]:active { transform: translateY(0); }

.error {
    padding:14px 18px;
    border-radius: var(--radius);
    font-size:13px;
    margin-bottom:18px;
    background:#fef2f2;
    color:#dc2626;
    border:1px solid #fecaca;
    border-left:4px solid var(--red);
    display:flex;
    align-items:center;
    gap:10px;
}

.divider {
    margin:28px 0 20px;
    display:flex;
    align-items:center;
    gap:14px;
    color:#cbd5e1;
    font-size:10px;
    font-weight:700;
    letter-spacing:3px;
    text-transform:uppercase;
}

.divider::before,
.divider::after {
    content:'';
    flex:1;
    height:1px;
    background: linear-gradient(90deg, transparent, #e8ebf2 50%, transparent);
}

.footer-note {
    text-align:center;
    font-size:11px;
    color: var(--text-soft);
    letter-spacing:1.5px;
    text-transform:uppercase;
}

/* ============ PORTAL ============ */
.portal-header {
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom:1px solid var(--border);
    position:sticky;
    top:0;
    z-index:100;
    box-shadow: 0 1px 3px rgba(15,23,42,0.03);
}

.ph-inner {
    max-width:1100px;
    margin:0 auto;
    padding:14px 24px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.ph-logo { display:flex; align-items:center; gap:14px; }

.ph-logo img {
    width:46px;
    height:46px;
    border-radius:50%;
    border:2px solid var(--black);
    object-fit:cover;
    box-shadow: var(--shadow-xs);
}

.ph-logo b {
    display:block;
    font-size:15px;
    letter-spacing:3px;
    font-weight:800;
}

.ph-logo span {
    display:block;
    font-size:10px;
    color: var(--text-soft);
    letter-spacing:2px;
    text-transform:uppercase;
    font-weight:600;
}

.ph-user {
    display:flex;
    align-items:center;
    gap:16px;
    font-size:13px;
    color: var(--text-muted);
    font-weight:500;
}

.ph-user a {
    color: var(--text-muted);
    text-decoration:none;
    font-weight:700;
    padding:8px 16px;
    border-radius: 30px;
    transition: var(--transition);
    border:1px solid transparent;
}

.ph-user a:hover {
    color: var(--red);
    background:#fef2f2;
    border-color:#fecaca;
}

.portal-main {
    max-width:1100px;
    margin:0 auto;
    padding:36px 24px 60px;
}

.portal-top {
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:26px;
    flex-wrap:wrap;
    gap:14px;
}

.portal-top h2 {
    font-size:1.65rem;
    font-weight:800;
    letter-spacing:-0.5px;
}

.portal-top .btn-primary {
    width:auto;
    padding:12px 26px;
}

.lista-tickets {
    display:flex;
    flex-direction:column;
    gap:16px;
}

.empty-state {
    text-align:center;
    padding:70px 20px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border:2px dashed #e2e8f0;
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom:20px;
    font-size:0.95rem;
}

.empty-state .btn {
    width:auto;
    padding:12px 26px;
    display:inline-block;
}

.ticket-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding:20px 24px;
    box-shadow: var(--shadow-sm);
    border:1px solid var(--border);
    border-left:5px solid #cbd5e1;
    cursor:pointer;
    transition: var(--transition);
    position:relative;
    overflow:hidden;
}

.ticket-card::before {
    content:'';
    position:absolute;
    top:0;
    left:0;
    right:0;
    height:1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
}

.ticket-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color:#dbe2ec;
}

.ticket-card.status-abierto    { border-left-color: var(--blue); }
.ticket-card.status-en_proceso { border-left-color: var(--orange); }
.ticket-card.status-resuelto   { border-left-color: var(--green); }
.ticket-card.status-cerrado    { border-left-color:#94a3b8; opacity:0.75; }

.ticket-header {
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:10px;
    margin-bottom:10px;
}

.ticket-header .folio {
    font-weight:800;
    font-size:0.78rem;
    letter-spacing:1.2px;
    color: var(--text-soft);
    margin-right:10px;
    font-family: 'SF Mono', Monaco, monospace;
}

.ticket-titulo {
    font-weight:700;
    font-size:1.05rem;
    color: var(--text);
    margin-bottom:8px;
    letter-spacing:-0.2px;
}

.ticket-meta {
    display:flex;
    gap:18px;
    font-size:0.78rem;
    color: var(--text-soft);
    flex-wrap:wrap;
    font-weight:500;
}

.badge {
    padding:4px 12px;
    border-radius: 20px;
    font-size:0.66rem;
    font-weight:800;
    color:#fff;
    letter-spacing:0.6px;
    text-transform:uppercase;
    display:inline-flex;
    align-items:center;
    gap:5px;
}

.badge-abierto    { background: linear-gradient(135deg, #3b82f6, #2563eb); box-shadow: 0 2px 8px rgba(59,130,246,0.3); }
.badge-en_proceso { background: linear-gradient(135deg, #f59e0b, #ea580c); box-shadow: 0 2px 8px rgba(245,158,11,0.3); }
.badge-resuelto   { background: linear-gradient(135deg, #10b981, #059669); box-shadow: 0 2px 8px rgba(16,185,129,0.3); }
.badge-cerrado    { background: linear-gradient(135deg, #94a3b8, #64748b); }

.badge-nuevo {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color:#fff;
    padding:4px 12px;
    border-radius:20px;
    font-size:0.66rem;
    font-weight:800;
    margin-left:8px;
    letter-spacing:0.6px;
    text-transform:uppercase;
    box-shadow: 0 2px 8px rgba(239,68,68,0.35);
    animation: pulseBadge 2s ease-in-out infinite;
}

@keyframes pulseBadge {
    0%,100% { box-shadow: 0 2px 8px rgba(239,68,68,0.35); }
    50%     { box-shadow: 0 2px 14px rgba(239,68,68,0.6); }
}

.badge-prioridad {
    padding:4px 12px;
    border-radius:20px;
    font-size:0.64rem;
    font-weight:800;
    text-transform:uppercase;
    color:#fff;
    letter-spacing:0.6px;
}

.badge-prioridad.baja    { background: linear-gradient(135deg, #10b981, #059669); }
.badge-prioridad.media   { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.badge-prioridad.alta    { background: linear-gradient(135deg, #f59e0b, #ea580c); }
.badge-prioridad.urgente { background: linear-gradient(135deg, #ef4444, #dc2626); }

/* ============ DETALLE ============ */
.volver-link {
    background:none;
    border:none;
    color: var(--text-muted);
    cursor:pointer;
    font-size:13px;
    font-weight:600;
    margin-bottom:20px;
    padding:8px 0;
    transition: var(--transition);
    display:inline-flex;
    align-items:center;
    gap:6px;
}

.volver-link:hover {
    color: var(--text);
    transform: translateX(-3px);
}

.detalle-header {
    background: var(--surface);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding:22px 26px;
    box-shadow: var(--shadow-sm);
    border:1px solid var(--border);
    border-bottom:none;
}

.detalle-header h2 {
    font-size:1.2rem;
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:8px;
    flex-wrap:wrap;
    letter-spacing:-0.3px;
}

.det-asunto {
    color: var(--text-muted);
    font-size:0.92rem;
    line-height:1.5;
}

.chat-wrap {
    background: var(--surface);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    padding:0;
    box-shadow: var(--shadow-sm);
    border:1px solid var(--border);
    border-top:none;
    overflow:hidden;
}

.chat-mensajes {
    max-height:520px;
    overflow-y:auto;
    padding:26px;
    display:flex;
    flex-direction:column;
    gap:16px;
    background:
        radial-gradient(circle at 10% 10%, rgba(59,130,246,0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(139,92,246,0.03) 0%, transparent 40%);
}

.chat-mensajes::-webkit-scrollbar { width:8px; }
.chat-mensajes::-webkit-scrollbar-track { background:transparent; }
.chat-mensajes::-webkit-scrollbar-thumb {
    background:#e2e8f0;
    border-radius:20px;
}
.chat-mensajes::-webkit-scrollbar-thumb:hover { background:#cbd5e1; }

.msg {
    max-width:80%;
    padding:14px 18px;
    border-radius: var(--radius);
    background:#f1f5f9;
    align-self:flex-start;
    position:relative;
    box-shadow: var(--shadow-xs);
    animation: msgIn 0.3s ease-out;
}

@keyframes msgIn {
    from { opacity:0; transform: translateY(8px); }
    to   { opacity:1; transform: translateY(0); }
}

.msg.cliente {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color:#fff;
    align-self:flex-end;
    border-bottom-right-radius: 4px;
}

.msg.staff {
    background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
    border-bottom-left-radius: 4px;
}

.msg.staff .msg-header b { color:#4338ca; }

.msg-header {
    display:flex;
    gap:12px;
    justify-content:space-between;
    font-size:0.72rem;
    margin-bottom:6px;
    opacity:0.85;
    font-weight:600;
}

.msg-body {
    font-size:0.9rem;
    line-height:1.55;
    white-space:pre-wrap;
    word-break: break-word;
}

.msg-adjuntos {
    margin-top:10px;
    padding-top:10px;
    border-top:1px solid rgba(0,0,0,0.08);
}

.msg-adjuntos a {
    display:inline-flex;
    align-items:center;
    gap:4px;
    font-size:0.75rem;
    color: var(--blue-dark);
    text-decoration:none;
    margin-right:12px;
    padding:4px 10px;
    background: rgba(59,130,246,0.1);
    border-radius: 20px;
    transition: var(--transition);
    font-weight:600;
}

.msg-adjuntos a:hover { background: rgba(59,130,246,0.2); }

.msg.cliente .msg-adjuntos { border-top-color: rgba(255,255,255,0.15); }
.msg.cliente .msg-adjuntos a {
    color:#93c5fd;
    background: rgba(147,197,253,0.15);
}
.msg.cliente .msg-adjuntos a:hover { background: rgba(147,197,253,0.25); }

.chat-form {
    padding:18px 26px 22px;
    border-top:1px solid var(--border);
    display:flex;
    gap:12px;
    align-items:flex-end;
    background: #fafbfd;
}

.chat-form textarea {
    flex:1;
    padding:14px 16px;
    border:1.5px solid var(--border);
    border-radius: var(--radius);
    font-size:14px;
    font-family:inherit;
    resize:none;
    transition: var(--transition);
    background:#fff;
    color: var(--text);
    min-height:48px;
    max-height:140px;
}

.chat-form textarea:focus {
    outline:none;
    border-color: var(--blue);
    box-shadow: var(--shadow-glow);
}

.chat-form button {
    width:auto;
    padding:14px 26px;
    flex-shrink:0;
}

.aviso-cerrado {
    padding:18px 26px;
    background:#f8fafc;
    border-top:1px solid var(--border);
    text-align:center;
    color: var(--text-muted);
    font-size:0.88rem;
}

.aviso-cerrado a {
    color: var(--blue-dark);
    font-weight:700;
    text-decoration:none;
}

.aviso-cerrado a:hover { text-decoration:underline; }

/* ============ MODAL ============ */
.modal-overlay {
    position:fixed;
    inset:0;
    background: rgba(15,23,42,0.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display:none;
    align-items:center;
    justify-content:center;
    z-index:1000;
    padding:20px;
}

.modal-overlay.show { display:flex; }

.modal-box {
    background: var(--surface);
    border-radius: var(--radius-lg);
    width:100%;
    max-width:560px;
    max-height:92vh;
    overflow-y:auto;
    padding:32px;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border:1px solid var(--border);
}

@keyframes modalIn {
    from { opacity:0; transform:scale(0.94) translateY(10px); }
    to   { opacity:1; transform:scale(1) translateY(0); }
}

.modal-header {
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:24px;
}

.modal-header h3 {
    font-size:1.25rem;
    font-weight:800;
    letter-spacing:-0.3px;
}

.modal-close {
    background:none;
    border:none;
    font-size:26px;
    cursor:pointer;
    color: var(--text-soft);
    line-height:1;
    width:36px;
    height:36px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text);
    background:#f1f5f9;
}

.modal-actions {
    display:flex;
    gap:10px;
    justify-content:flex-end;
    margin-top:24px;
}

.modal-actions .btn {
    width:auto;
    padding:12px 24px;
}

.btn-sec {
    background:#f1f5f9;
    color: var(--text-muted);
    box-shadow:none;
}

.btn-sec:hover {
    background:#e2e8f0;
    color: var(--text);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.form-group { margin-bottom:18px; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:14px; }

.form-group label {
    display:block;
    margin-bottom:8px;
    font-size:0.82rem;
    font-weight:700;
    color: var(--text-muted);
    letter-spacing:0.2px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width:100%;
    padding:12px 14px;
    border:1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size:14px;
    font-family:inherit;
    transition: var(--transition);
    background: #fafbfd;
    color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline:none;
    border-color: var(--blue);
    background:#fff;
    box-shadow: var(--shadow-glow);
}

.text-muted { color: var(--text-soft); }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
    .login-wrap { grid-template-columns:1fr; }
    .login-visual { display:none; }
    .login-box .mobile-logo { display:flex; align-items:center; justify-content:center; }
    .login-form-side { padding:30px 20px; }
    .login-box { padding: 32px 24px; border-radius: var(--radius-lg); }
    .welcome h2 { font-size:1.6rem; }
    .portal-main { padding:20px 14px 40px; }
    .ph-inner { padding:12px 14px; }
    .msg { max-width:92%; }
    .chat-form { flex-direction:column; align-items:stretch; }
    .chat-form button { width:100%; }
    .form-row { grid-template-columns:1fr; }
    .ticket-card { padding:16px 18px; }
    .portal-top h2 { font-size:1.35rem; }
}