:root {
    --primary: #F7A66E;
    --primary-hover: #F29352;
    --brand-orange: #F0643B;
    --bg-outer: #E5D9CE;
    --bg-body: #FBF0E4;
    --bg-card: transparent;
    --text-main: #5C2210;
    --text-subtitle: #2E2421;
    --text-muted: #8C5843;
    --link-color: #B45332;
    --link-bold: #9A3B1C;
    --border: #F0B89A;
    --border-focus: #E26D43;
    --danger-bg: #fef2f2;
    --danger-text: #991b1b;
    --danger-border: #fecaca;
    --success-bg: #f0fdf4;
    --success-text: #166534;
    --success-border: #bbf7d0;
    --radius: 16px;
}

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

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-outer);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    min-height: 100vh;
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
    min-height: 100vh;
    background-color: var(--bg-body);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 24px rgba(0, 0, 0, 0.08);
}

/* Huellas decorativas de fondo (Watermarks del Wireframe) */
.paw-watermark {
    position: absolute;
    pointer-events: none;
    z-index: 0;
    display: block;
    height: auto;
}

.paw-watermark.top-left {
    top: 38px;
    left: 0;
    width: 155px;
}

.paw-watermark.bottom-right {
    bottom: 24px;
    right: 0;
    width: 150px;
}

.card {
    position: relative;
    z-index: 1;
    background: var(--bg-card);
    padding: 2rem 1.75rem 2.5rem;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Flecha superior de retorno en Registro */
.back-nav {
    margin-bottom: 1rem;
}

.btn-back-auth {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #4A3E3D;
    text-decoration: none;
    font-size: 1.25rem;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    transition: background-color 0.15s ease;
}

.btn-back-auth:hover {
    background-color: rgba(240, 184, 154, 0.25);
}

/* Cabecera Login con ilustración + logo wau */
.card-header {
    margin-bottom: 1.5rem;
    text-align: center;
}

.card-header.header-left {
    text-align: left;
    margin-bottom: 1.25rem;
}

.hero-illustration {
    display: flex;
    justify-content: center;
    margin-bottom: 0.65rem;
}

.hero-illustration svg,
.hero-illustration img {
    width: 190px;
    height: auto;
    display: block;
}

.wau-logo {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0.45rem;
}

.wau-logo svg,
.wau-logo img {
    width: 145px;
    height: auto;
    display: block;
}

.brand-title {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.brand-subtitle {
    margin-top: 0.4rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-subtitle);
    line-height: 1.4;
}

.brand-tagline {
    margin-top: 0.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
}

/* Selector de Rol en Registro */
.role-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    background: rgba(240, 184, 154, 0.25);
    padding: 0.3rem;
    border-radius: 999px;
    border: 1px solid var(--border);
}

.role-btn {
    padding: 0.55rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    background: transparent;
    border-radius: 999px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.role-btn.active {
    background: var(--primary);
    color: var(--text-main);
    box-shadow: 0 2px 6px rgba(92, 34, 16, 0.12);
}

.hidden {
    display: none !important;
}

/* Campos y Formulario estilo Wireframe */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-main);
}

input {
    width: 100%;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-main);
    background-color: rgba(251, 240, 228, 0.65);
    border-radius: 6px;
    border: 1.5px solid var(--border);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

input::placeholder {
    color: rgba(92, 34, 16, 0.6);
}

input:focus {
    border-color: var(--border-focus);
    background-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(240, 100, 59, 0.14);
}

.password-field {
    position: relative;
    display: flex;
    align-items: center;
}

.btn-toggle {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-muted);
}

/* Botón Principal Píldora del Wireframe */
.btn-primary {
    width: 100%;
    padding: 0.9rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 700;
    font-family: inherit;
    color: var(--text-main);
    background-color: var(--primary);
    border: none;
    border-radius: 999px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 10px rgba(92, 34, 16, 0.12);
    transition: background-color 0.15s ease, transform 0.1s ease;
    margin-top: 0.75rem;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Enlace inferior de cambio entre Login y Registro */
.auth-link {
    margin-top: 1.35rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--link-color);
}

.auth-link a {
    color: var(--link-bold);
    text-decoration: none;
    font-weight: 700;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Mensajes de Feedback y Validación */
.feedback {
    display: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.feedback.error {
    display: block;
    background-color: var(--danger-bg);
    color: var(--danger-text);
    border: 1px solid var(--danger-border);
}

.feedback.success {
    display: block;
    background-color: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}

.input-error {
    border-color: var(--danger-text) !important;
    box-shadow: 0 0 0 3px rgba(153, 27, 27, 0.15) !important;
}

.field-error {
    color: var(--danger-text);
    font-size: 0.75rem;
    margin-top: 0.2rem;
    display: block;
}

.spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid var(--text-main);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.btn-primary.loading .btn-text {
    display: none;
}

.btn-primary.loading .spinner {
    display: block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}