/* ========================================
   LOGIN PAGE - Layout Principal
   ======================================== */

.login-container {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 100vh;
    background: white;
}

/* ========================================
   PANEL IZQUIERDO - SHOWCASE
   ======================================== */

.login-showcase {
    position: relative;
    display: none;
    background: linear-gradient(135deg, var(--color-gray-900) 0%, #1a1a2e 50%, var(--color-primary-900) 100%);
    color: white;
    overflow: hidden;
    padding: var(--space-12);
}

.showcase-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Brand */
.brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-12);
}

.logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-glow);
}

.logo svg {
    width: 100%;
    height: 100%;
}

.brand-name {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    letter-spacing: -0.025em;
}

/* Hero Text */
.hero-text {
    margin-bottom: var(--space-10);
}

.headline {
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-6);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary-400) 0%, var(--color-purple-500) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subheadline {
    font-size: var(--text-lg);
    color: var(--color-gray-300);
    line-height: 1.7;
    max-width: 90%;
}

.subheadline strong {
    color: white;
    font-weight: var(--font-semibold);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.feature-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-500);
    border-radius: var(--radius-lg);
    color: white;
}

.feature-icon.icon-purple {
    background: var(--color-purple-500);
}

.feature-icon.icon-success {
    background: var(--color-success-500);
}

.feature-icon.icon-warning {
    background: var(--color-warning-500);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-text h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
    color: white;
}

.feature-text p {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    line-height: 1.5;
}

/* Social Proof */
.social-proof {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.avatars {
    display: flex;
    align-items: center;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: white;
    border: 2px solid var(--color-gray-800);
    margin-left: -8px;
}

.avatar:first-child {
    margin-left: 0;
}

.avatar-more {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    color: var(--color-gray-300);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--color-gray-800);
    margin-left: -8px;
}

.social-proof p {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}

/* Decoración visual */
.showcase-decoration {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary-500);
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--color-purple-500);
    bottom: -50px;
    left: -50px;
    animation: float 10s ease-in-out infinite reverse;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

/* Animaciones de entrada */
[data-animate="fade-up"] {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s ease forwards;
}

[data-delay="100"] { animation-delay: 0.1s; }
[data-delay="200"] { animation-delay: 0.2s; }
[data-delay="300"] { animation-delay: 0.3s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   PANEL DERECHO - FORMULARIOS
   ======================================== */

.login-forms {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    background: white;
}

.forms-container {
    width: 100%;
    max-width: 420px;
}

/* Toggle Login/Registro */
.form-toggle {
    display: flex;
    gap: var(--space-2);
    background: var(--color-gray-100);
    padding: var(--space-1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-8);
}

.toggle-btn {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border: none;
    background: transparent;
    color: var(--color-gray-600);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-btn.active {
    background: white;
    color: var(--color-gray-900);
    box-shadow: var(--shadow-sm);
}

/* Headers de formulario */
.form-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.form-header h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.form-header p {
    font-size: var(--text-base);
    color: var(--color-gray-500);
}

/* Grupos de formulario */
.form-group {
    margin-bottom: var(--space-5);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

/* Inputs */
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: var(--space-3);
    width: 20px;
    height: 20px;
    color: var(--color-gray-400);
    pointer-events: none;
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    padding-left: calc(var(--space-3) + 24px + var(--space-2));
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    color: var(--color-gray-900);
    background: white;
    transition: all var(--transition-fast);
}

input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

input::placeholder {
    color: var(--color-gray-400);
}

.input-prefix {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.input-prefix:focus-within {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

.input-prefix .prefix {
    padding: var(--space-3) var(--space-3);
    background: var(--color-gray-50);
    color: var(--color-gray-500);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-right: 1px solid var(--color-gray-200);
    white-space: nowrap;
}

.input-prefix input {
    border: none;
    box-shadow: none;
    padding-left: var(--space-3);
}

.input-prefix input:focus {
    box-shadow: none;
}

.help-text {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-gray-500);
    margin-top: var(--space-1);
}

/* Toggle password */
.toggle-password {
    position: absolute;
    right: var(--space-3);
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: var(--space-1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: var(--color-gray-600);
}

.toggle-password svg {
    width: 20px;
    height: 20px;
}

/* Opciones del formulario */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

/* Checkbox personalizado */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    cursor: pointer;
    user-select: none;
}

.checkbox-wrapper input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.checkmark::after {
    content: '';
    width: 5px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--transition-fast);
}

.checkbox-wrapper input:checked + .checkmark {
    background: var(--color-primary-500);
    border-color: var(--color-primary-500);
}

.checkbox-wrapper input:checked + .checkmark::after {
    transform: rotate(45deg) scale(1);
}

.checkbox-wrapper.terms {
    margin-bottom: var(--space-6);
    line-height: 1.5;
}

.checkbox-wrapper.terms a {
    color: var(--color-primary-600);
    text-decoration: none;
}

.checkbox-wrapper.terms a:hover {
    text-decoration: underline;
}

.forgot-link {
    font-size: var(--text-sm);
    color: var(--color-primary-600);
    text-decoration: none;
    font-weight: var(--font-medium);
}

.forgot-link:hover {
    text-decoration: underline;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-full {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-loader {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: inherit;
}

.btn-loader svg {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

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

.btn-google {
    background: white;
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-200);
}

.btn-google:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
}

.btn-google svg {
    width: 20px;
    height: 20px;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
    color: var(--color-gray-400);
    font-size: var(--text-sm);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-gray-200);
}

/* Selector de planes */
.plans-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.plan-card {
    position: relative;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.plan-card:hover {
    border-color: var(--color-primary-300);
}

.plan-card input {
    position: absolute;
    opacity: 0;
}

.plan-card input:checked + .plan-content,
.plan-card input:checked ~ .plan-content {
    /* Seleccionado vía JS agregando clase */
}

.plan-card:has(input:checked) {
    border-color: var(--color-primary-500);
    background: var(--color-primary-50);
}

.plan-badge {
    position: absolute;
    top: -10px;
    right: var(--space-3);
    background: var(--color-primary-500);
    color: white;
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.plan-name {
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.plan-price {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.plan-price span {
    font-size: var(--text-sm);
    font-weight: var(--font-normal);
    color: var(--color-gray-500);
}

.plan-features {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
}

/* Mensajes */
.form-message {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-top: var(--space-4);
    font-size: var(--text-sm);
}

.form-message.success {
    background: var(--color-success-500);
    color: white;
}

.form-message.error {
    background: var(--color-error-500);
    color: white;
}

/* Footer de formulario */
.form-footer {
    text-align: center;
    margin-top: var(--space-6);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.link-toggle {
    color: var(--color-primary-600);
    font-weight: var(--font-semibold);
    text-decoration: none;
}

.link-toggle:hover {
    text-decoration: underline;
}

/* Estados de carga y error */
.auth-form[hidden] {
    display: none !important;
}

.error-message {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-error-500);
    margin-top: var(--space-1);
    min-height: 16px;
}

input.error {
    border-color: var(--color-error-500);
}

input.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* ========================================
   RESPONSIVE - Desktop
   ======================================== */

@media (min-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr 1fr;
    }

    .login-showcase {
        display: flex;
    }

    .login-forms {
        padding: var(--space-12);
    }

    .features-grid {
        grid-template-columns: 1fr 1fr;
    }

    .headline {
        font-size: var(--text-5xl);
    }
}

/* Tablet */
@media (min-width: 768px) and (max-width: 1023px) {
    .login-forms {
        padding: var(--space-10);
    }

    .forms-container {
        max-width: 480px;
    }
}

/* Mobile optimizaciones */
@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .plans-selector {
        grid-template-columns: 1fr;
    }

    .btn {
        padding: var(--space-4) var(--space-6);
    }
}

/* Dark mode support (preparación) */
@media (prefers-color-scheme: dark) {
    :root {
        /* Se activará con clase en body */
    }
}

/* Fix: Ocultar loader por defecto */
.btn-loader[hidden] {
    display: none !important;
}

.btn-text {
    display: inline;
}

.btn-text[hidden] {
    display: none !important;
}