/**
 * Estilos de Registro - Estilo Twitter/X
 * Soporte para tema claro y oscuro
 * Detecta automáticamente la preferencia del sistema
 */

/* ============================
   Variables - Tema Claro (por defecto)
   ============================ */
:root {
    /* Colores base - Tema Claro - Luxury & Minimal */
    --bg-primary: #fafafa;
    --bg-secondary: #f5f5f5;
    --bg-modal: #ffffff;
    --bg-input: #ffffff;
    --bg-hover: rgba(0, 0, 0, 0.04);
    --bg-overlay: rgba(250, 250, 250, 0.85);
    
    --text-primary: #1a1a1a;
    --text-secondary: #737373;
    --text-placeholder: #a3a3a3;
    
    --border-color: #e5e5e5;
    --border-focus: #3FEC00;
    --border-error: #ef4444;
    --border-success: #22c55e;
    
    --accent-primary: #3FEC00;
    --accent-hover: #32c800;
    --accent-success: #22c55e;
    --accent-error: #ef4444;
    
    --btn-primary-bg: #171717;
    --btn-primary-text: #ffffff;
    --btn-primary-hover: #262626;
    
    --logo-bg-color: #e5e5e5;
    
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-theme: 0.3s ease;
    
    --modal-width: 600px;
    --modal-max-height: 90vh;
    --border-radius: 16px;
    --input-radius: 4px;
}

/* ============================
   Variables - Tema Oscuro
   ============================ */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-primary: #1a1a1a;
        --bg-secondary: #141414;
        --bg-modal: #000000;
        --bg-input: #0a0a0a;
        --bg-hover: rgba(255, 255, 255, 0.08);
        --bg-overlay: rgba(26, 26, 26, 0.85);
        
        --text-primary: #fafafa;
        --text-secondary: #a3a3a3;
        --text-placeholder: #737373;
        
        --border-color: #262626;
        --border-focus: #3FEC00;
        --border-error: #ef4444;
        --border-success: #22c55e;
        
        --accent-primary: #3FEC00;
        --accent-hover: #32c800;
        --accent-success: #22c55e;
        --accent-error: #ef4444;
        
        --btn-primary-bg: #fafafa;
        --btn-primary-text: #0a0a0a;
        --btn-primary-hover: #e5e5e5;
        
        --logo-bg-color: #262626;
    }
}

/* Tema oscuro forzado por el usuario */
:root[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #141414;
    --bg-modal: #000000;
    --bg-input: #0a0a0a;
    --bg-hover: rgba(255, 255, 255, 0.08);
    --bg-overlay: rgba(26, 26, 26, 0.85);
    
    --text-primary: #fafafa;
    --text-secondary: #a3a3a3;
    --text-placeholder: #737373;
    
    --border-color: #262626;
    --border-focus: #3FEC00;
    --border-error: #ef4444;
    --border-success: #22c55e;
    
    --accent-primary: #3FEC00;
    --accent-hover: #32c800;
    --accent-success: #22c55e;
    --accent-error: #ef4444;
    
    --btn-primary-bg: #fafafa;
    --btn-primary-text: #0a0a0a;
    --btn-primary-hover: #e5e5e5;
    
    --logo-bg-color: #262626;
}

/* Tema claro forzado por el usuario - Luxury & Minimal */
:root[data-theme="light"] {
    --bg-primary: #fafafa;
    --bg-secondary: #f5f5f5;
    --bg-modal: #ffffff;
    --bg-input: #ffffff;
    --bg-hover: rgba(0, 0, 0, 0.04);
    --bg-overlay: rgba(250, 250, 250, 0.85);
    
    --text-primary: #1a1a1a;
    --text-secondary: #737373;
    --text-placeholder: #a3a3a3;
    
    --border-color: #e5e5e5;
    --border-focus: #3FEC00;
    --border-error: #ef4444;
    --border-success: #22c55e;
    
    --btn-primary-bg: #171717;
    --btn-primary-text: #ffffff;
    --btn-primary-hover: #262626;
    
    --logo-bg-color: #e5e5e5;
}

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

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================
   Background con Logo
   ============================ */
.register-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background-color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
    transition: background-color var(--transition-theme);
}

.register-logo-bg {
    width: 380px;
    height: 380px;
    color: rgba(255, 255, 255, 0.15); /* Logo blanco con opacidad */
    transition: color var(--transition-theme);
}

.register-logo-bg svg {
    width: 100%;
    height: 100%;
}

/* En tema claro, el logo es gris sutil y elegante */
:root[data-theme="light"] .register-logo-bg {
    color: #e0e0e0;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .register-logo-bg {
        color: #e0e0e0;
    }
}

/* ============================
   Toggle de Tema (Sol/Luna)
   ============================ */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background-color: var(--bg-modal);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
    background-color: var(--bg-hover);
    transform: scale(1.05);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    position: absolute;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

/* Estado: Tema Claro - mostrar luna */
:root:not([data-theme="dark"]) .theme-toggle .icon-sun {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

:root:not([data-theme="dark"]) .theme-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* Estado: Tema Oscuro - mostrar sol */
:root[data-theme="dark"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0) scale(1);
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

/* Detectar preferencia del sistema para el toggle */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle .icon-sun {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
    
    :root:not([data-theme="light"]) .theme-toggle .icon-moon {
        opacity: 0;
        transform: rotate(90deg) scale(0);
    }
}

@media (max-width: 768px) {
    .theme-toggle {
        top: 12px;
        right: 12px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .register-background {
        display: none;
    }
}

/* ============================
   Container Principal
   ============================ */
.register-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    background-color: var(--bg-overlay);
    backdrop-filter: blur(4px);
    transition: background-color var(--transition-theme);
}

/* ============================
   Modal
   ============================ */
.register-modal {
    width: 100%;
    max-width: var(--modal-width);
    max-height: var(--modal-max-height);
    background-color: var(--bg-modal);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalFadeIn 0.3s ease;
    transition: background-color var(--transition-theme), 
                box-shadow var(--transition-theme),
                border-color var(--transition-theme);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
}

/* Modal más elegante en tema claro */
:root[data-theme="light"] .register-modal,
:root:not([data-theme="dark"]) .register-modal {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15),
                0 0 0 1px rgba(0, 0, 0, 0.05);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .register-modal {
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        border-color: #262626;
    }
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .register-modal {
        max-width: 100%;
        max-height: 100%;
        height: 100%;
        border-radius: 0;
    }
}

.register-modal-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 650px;
}

/* ============================
   Header del Modal
   ============================ */
.register-modal-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    position: relative;
    min-height: 53px;
}

.register-close-btn,
.register-back-btn {
    position: absolute;
    left: 16px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
    font-size: 16px;
}

.register-close-btn:hover,
.register-back-btn:hover {
    background-color: var(--bg-hover);
}

.register-back-btn {
    display: none;
}

.register-logo {
    width: 36px;
    height: 36px;
    color: #3FEC00; /* Verde GWOAW */
    transition: color var(--transition-theme);
}

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

/* En tema claro, el logo puede ser un poco más oscuro */
:root[data-theme="light"] .register-logo {
    color: #32c800;
}

/* ============================
   Body del Modal
   ============================ */
.register-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 0 80px 48px;
}

@media (max-width: 768px) {
    .register-modal-body {
        padding: 0 24px 32px;
    }
}

/* ============================
   Steps
   ============================ */
.register-step {
    display: none;
    animation: stepFadeIn 0.3s ease;
}

.register-step.active {
    display: block;
}

@keyframes stepFadeIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================
   Títulos
   ============================ */
.register-title {
    font-size: 31px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.2;
    transition: color var(--transition-theme);
}

.register-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    transition: color var(--transition-theme);
}

/* ============================
   Inputs
   ============================ */
.register-input-group {
    margin-bottom: 3px;
}

.register-input-wrapper {
    position: relative;
}

.register-input {
    width: 100%;
    height: 56px;
    padding: 24px 12px 8px;
    font-size: 17px;
    color: var(--text-primary);
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--input-radius);
    outline: none;
    transition: border-color var(--transition-fast),
                background-color var(--transition-theme),
                color var(--transition-theme);
    caret-color: var(--accent-primary);
}

.register-input:focus {
    border-color: var(--border-focus);
}

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

.register-input.success {
    border-color: var(--border-success);
}

.register-input-label {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 17px;
    color: var(--text-placeholder);
    pointer-events: none;
    transition: all var(--transition-fast);
    background: transparent;
}

.register-input:focus ~ .register-input-label,
.register-input:not(:placeholder-shown) ~ .register-input-label {
    top: 12px;
    transform: translateY(0);
    font-size: 13px;
    color: var(--border-focus);
}

.register-input.error ~ .register-input-label {
    color: var(--border-error);
}

.register-input-counter {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 13px;
    color: var(--text-secondary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.register-input:focus ~ .register-input-counter {
    opacity: 1;
}

.register-input-error {
    font-size: 13px;
    color: var(--accent-error);
    margin-top: 4px;
    min-height: 18px;
}

/* ============================
   Toggle Password
   ============================ */
.register-password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    font-size: 16px;
    transition: color var(--transition-fast);
}

.register-password-toggle:hover {
    color: var(--text-primary);
}

/* ============================
   Links
   ============================ */
.register-toggle-contact,
.register-resend-link {
    display: inline-block;
    margin-top: 8px;
    font-size: 15px;
    color: var(--accent-primary);
    text-decoration: none;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.register-toggle-contact:hover,
.register-resend-link:hover {
    text-decoration: underline;
}

/* ============================
   Fecha de Nacimiento
   ============================ */
.register-birth-section {
    margin-bottom: 24px;
}

.register-birth-label {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
    margin-bottom: 8px;
}

.register-birth-hint {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.register-birth-selects {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: 12px;
}

.register-select-wrapper {
    position: relative;
}

.register-select {
    width: 100%;
    height: 56px;
    padding: 24px 12px 8px;
    font-size: 17px;
    color: var(--text-primary);
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--input-radius);
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2371767b' d='M6 8.825L1.175 4 2.238 2.938 6 6.7l3.762-3.762L10.825 4z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    transition: border-color var(--transition-fast),
                background-color var(--transition-theme),
                color var(--transition-theme);
}

.register-select:focus {
    border-color: var(--border-focus);
}

.register-select option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.register-select-label {
    position: absolute;
    left: 12px;
    top: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    pointer-events: none;
}

.register-select:focus ~ .register-select-label {
    color: var(--border-focus);
}

/* ============================
   Términos
   ============================ */
.register-terms {
    margin-bottom: 24px;
    padding: 16px 0;
}

.register-terms p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.register-terms a {
    color: var(--accent-primary);
    text-decoration: none;
}

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

/* ============================
   Botones
   ============================ */
.register-step-footer {
    margin-top: 24px;
}

.register-btn-primary {
    width: 100%;
    height: 52px;
    font-size: 17px;
    font-weight: 700;
    color: var(--btn-primary-text);
    background-color: var(--btn-primary-bg);
    border: none;
    border-radius: 9999px;
    cursor: pointer;
    transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.register-btn-primary:hover {
    background-color: var(--btn-primary-hover);
}

.register-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.register-btn-secondary {
    width: 100%;
    height: 52px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    cursor: pointer;
    margin-top: 12px;
    transition: background-color var(--transition-fast);
}

.register-btn-secondary:hover {
    background-color: var(--bg-hover);
}

/* ============================
   Paso 4: Éxito
   ============================ */
.register-success-icon {
    text-align: center;
    margin-bottom: 24px;
    padding-top: 40px;
}

.register-success-icon i {
    font-size: 64px;
    color: var(--accent-success);
    animation: successPop 0.5s ease;
}

@keyframes successPop {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.register-username-display {
    text-align: center;
    font-size: 20px;
    color: var(--text-secondary);
    margin: 24px 0 40px;
    padding: 16px;
    background-color: var(--bg-secondary);
    border-radius: 12px;
}

.register-username-at {
    color: var(--accent-primary);
}

#step4 .register-title,
#step4 .register-subtitle {
    text-align: center;
}

/* ============================
   Loading Overlay
   ============================ */
.register-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.register-loading.active {
    display: flex;
}

.register-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================
   Toast Notifications
   ============================ */
.register-toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--accent-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease;
    max-width: 90%;
    text-align: center;
}

.register-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.register-toast.error {
    background-color: var(--accent-error);
}

.register-toast.success {
    background-color: var(--accent-success);
}

/* ============================
   Scrollbar Custom
   ============================ */
.register-modal-body::-webkit-scrollbar {
    width: 8px;
}

.register-modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.register-modal-body::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 4px;
}

.register-modal-body::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* ============================
   Responsive Ajustes Finales
   ============================ */
@media (max-width: 480px) {
    .register-title {
        font-size: 24px;
    }
    
    .register-birth-selects {
        grid-template-columns: 1fr 1fr;
    }
    
    .register-birth-selects .register-select-wrapper:first-child {
        grid-column: span 2;
    }
}

/* ============================
   Focus Visible (Accesibilidad)
   ============================ */
.register-btn-primary:focus-visible,
.register-btn-secondary:focus-visible,
.register-input:focus-visible,
.register-select:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}