/* Este CSS convierte el login en una interfaz más institucional:

1. crea un panel lateral informativo
2. agrega un diseño más elegante
3. soporta modo claro y oscuro
4. mantiene los campos interactivos */

:root {
    --bg-main: #eff6ff;
    --bg-secondary: #dbeafe;
    --bg-accent: #bfdbfe;
    --surface: rgba(255, 255, 255, 0.78);
    --surface-strong: rgba(255, 255, 255, 0.92);
    --surface-panel: rgba(15, 23, 42, 0.88);
    --surface-panel-soft: rgba(30, 41, 59, 0.86);
    --text-main: #0f172a;
    --text-soft: #64748b;
    --text-light: #e2e8f0;
    --line: rgba(148, 163, 184, 0.28);
    --line-focus: #2563eb;
    --primary: #2563eb;
    --primary-2: #1d4ed8;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    --shadow-card: 0 28px 60px rgba(15, 23, 42, 0.16);
    --shadow-focus: 0 0 0 4px rgba(37, 99, 235, 0.12);
    --radius-xl: 26px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --transition: 220ms ease;
}

body.auth-page[data-theme="dark"] {
    --bg-main: #020617;
    --bg-secondary: #0f172a;
    --bg-accent: #111827;
    --surface: rgba(15, 23, 42, 0.84);
    --surface-strong: rgba(15, 23, 42, 0.94);
    --surface-panel: rgba(2, 6, 23, 0.90);
    --surface-panel-soft: rgba(15, 23, 42, 0.92);
    --text-main: #e5eefc;
    --text-soft: #94a3b8;
    --text-light: #e2e8f0;
    --line: rgba(148, 163, 184, 0.20);
    --line-focus: #60a5fa;
    --primary: #3b82f6;
    --primary-2: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #f87171;
    --shadow-card: 0 28px 60px rgba(2, 6, 23, 0.44);
    --shadow-focus: 0 0 0 4px rgba(96, 165, 250, 0.14);
}

* {
    box-sizing: border-box;
}

body.auth-page {
    margin: 0;
    min-height: 100vh;
    font-family: Arial, sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at 12% 18%, rgba(37, 99, 235, 0.20), transparent 24%),
        radial-gradient(circle at 85% 20%, rgba(14, 165, 233, 0.18), transparent 18%),
        radial-gradient(circle at 78% 82%, rgba(99, 102, 241, 0.16), transparent 22%),
        linear-gradient(135deg, var(--bg-main), var(--bg-secondary), var(--bg-accent));
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}

.auth-shell {
    position: relative;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px 18px;
}

.auth-bg-orb {
    position: absolute;
    border-radius: 999px;
    filter: blur(12px);
    opacity: 0.9;
    animation: floatOrb 9s ease-in-out infinite;
    pointer-events: none;
}

.auth-bg-orb.orb-1 {
    width: 260px;
    height: 260px;
    top: 6%;
    left: 5%;
    background: rgba(37, 99, 235, 0.18);
}

.auth-bg-orb.orb-2 {
    width: 180px;
    height: 180px;
    top: 18%;
    right: 10%;
    background: rgba(16, 185, 129, 0.14);
    animation-delay: 1.5s;
}

.auth-bg-orb.orb-3 {
    width: 260px;
    height: 260px;
    right: 12%;
    bottom: 8%;
    background: rgba(99, 102, 241, 0.16);
    animation-delay: 2.5s;
}

@keyframes floatOrb {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
    }
    50% {
        transform: translateY(-12px) translateX(10px);
    }
}

.auth-stage {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1120px;
}

.theme-toggle-wrap {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 14px;
}

.theme-toggle {
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text-main);
    backdrop-filter: blur(14px);
    border-radius: 999px;
    padding: 10px 14px;
    cursor: pointer;
    font-size: 13px;
    transition: all var(--transition);
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: rgba(37, 99, 235, 0.34);
}

.auth-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 22px;
    align-items: stretch;
}

.auth-panel {
    position: relative;
    background: linear-gradient(145deg, var(--surface-panel), var(--surface-panel-soft));
    color: var(--text-light);
    border-radius: var(--radius-xl);
    padding: 30px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.auth-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top right, rgba(96, 165, 250, 0.20), transparent 28%),
        radial-gradient(circle at bottom left, rgba(14, 165, 233, 0.14), transparent 30%);
    pointer-events: none;
}

.auth-panel-content {
    position: relative;
    z-index: 2;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.10);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.95), rgba(37, 99, 235, 0.85));
    color: #fff;
    font-weight: bold;
    font-size: 15px;
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.28);
}

.auth-panel h1 {
    margin: 0 0 10px;
    font-size: 34px;
    line-height: 1.08;
}

.auth-panel p {
    margin: 0;
    color: rgba(226, 232, 240, 0.82);
    line-height: 1.6;
    max-width: 540px;
}

.panel-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 26px 0 22px;
}

.panel-stat {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 16px 14px;
}

.panel-stat strong {
    display: block;
    font-size: 20px;
    margin-bottom: 6px;
}

.panel-stat span {
    color: rgba(226, 232, 240, 0.78);
    font-size: 12px;
    line-height: 1.4;
}

.panel-points {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 12px;
}

.panel-points li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.point-icon {
    width: 28px;
    height: 28px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: rgba(59, 130, 246, 0.20);
    font-size: 13px;
    flex-shrink: 0;
}

.point-text {
    font-size: 13px;
    color: rgba(226, 232, 240, 0.84);
    line-height: 1.5;
}

.auth-card {
    background: var(--surface);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    padding: 28px 24px 22px;
    box-shadow: var(--shadow-card);
}

.auth-card-inner {
    width: 100%;
}

.flash {
    padding: 12px 14px;
    border-radius: 12px;
    margin-bottom: 16px;
    font-size: 14px;
}

.flash-success {
    background: rgba(16, 185, 129, 0.10);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.18);
}

.flash-error {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.16);
}

.auth-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.14);
    padding: 7px 10px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.auth-title {
    margin: 0 0 6px;
    font-size: 28px;
    line-height: 1.1;
}

.auth-subtitle {
    margin: 0;
    color: var(--text-soft);
    font-size: 14px;
    line-height: 1.55;
}

.auth-progress {
    margin: 18px 0 20px;
}

.auth-progress-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-soft);
}

.auth-progress-track {
    width: 100%;
    height: 8px;
    background: rgba(148, 163, 184, 0.18);
    border-radius: 999px;
    overflow: hidden;
}

.auth-progress-bar {
    width: 0%;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--success));
    transition: width 260ms ease;
}

.auth-form {
    display: grid;
    gap: 16px;
}

.field {
    position: relative;
}

.field-input {
    width: 100%;
    height: 58px;
    padding: 20px 50px 10px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    outline: none;
    background: var(--surface-strong);
    color: var(--text-main);
    font-size: 15px;
    transition:
        border-color var(--transition),
        box-shadow var(--transition),
        background var(--transition),
        transform var(--transition);
}

.field-input::placeholder {
    color: transparent;
}

.field-input:focus {
    border-color: var(--line-focus);
    box-shadow: var(--shadow-focus);
    transform: translateY(-1px);
}

.field-label {
    position: absolute;
    left: 14px;
    top: 18px;
    color: var(--text-soft);
    font-size: 14px;
    pointer-events: none;
    transition: all var(--transition);
}

.field.is-active .field-label,
.field.has-value .field-label {
    top: 8px;
    font-size: 11px;
    color: var(--primary);
    font-weight: bold;
}

.field.is-valid .field-input {
    border-color: rgba(16, 185, 129, 0.48);
    background: rgba(16, 185, 129, 0.04);
}

.field.is-valid .field-label {
    color: var(--success);
}

.field.is-invalid .field-input {
    border-color: rgba(220, 38, 38, 0.38);
    background: rgba(220, 38, 38, 0.04);
}

.field-status {
    margin-top: 7px;
    min-height: 18px;
    font-size: 12px;
    color: var(--text-soft);
    transition: color var(--transition);
}

.field.is-valid .field-status {
    color: var(--success);
}

.field.is-invalid .field-status {
    color: var(--danger);
}

.field-action {
    position: absolute;
    top: 15px;
    right: 12px;
    border: none;
    background: transparent;
    color: var(--text-soft);
    cursor: pointer;
    font-size: 13px;
    padding: 6px 8px;
    border-radius: 8px;
    transition: background var(--transition), color var(--transition);
}

.field-action:hover {
    background: rgba(148, 163, 184, 0.10);
    color: var(--text-main);
}

.auth-button {
    border: none;
    height: 54px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: #fff;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        filter var(--transition),
        opacity var(--transition);
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.20);
}

.auth-button:hover {
    transform: translateY(-1px);
    filter: brightness(1.03);
}

.auth-button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.auth-inline-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-soft);
}

.auth-footer {
    margin-top: 16px;
    text-align: center;
    color: var(--text-soft);
    font-size: 13px;
}

.auth-footer a,
.auth-inline-row a {
    color: var(--primary);
    text-decoration: none;
}

.auth-note {
    margin-top: 12px;
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-soft);
    text-align: center;
}

@media (max-width: 920px) {
    .auth-grid {
        grid-template-columns: 1fr;
    }

    .auth-panel {
        padding: 24px;
    }

    .panel-stats {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

@media (max-width: 580px) {
    .auth-shell {
        padding: 20px 14px;
    }

    .auth-card,
    .auth-panel {
        padding: 22px 18px;
    }

    .auth-panel h1 {
        font-size: 28px;
    }

    .auth-title {
        font-size: 24px;
    }

    .panel-stats {
        grid-template-columns: 1fr;
    }

    .theme-toggle-wrap {
        margin-bottom: 10px;
    }
}