/* ========================================
   MODALES STYLES - BFunded Academy
   Sistema de modales reutilizables
======================================== */

/* ========================================
   VARIABLES
======================================== */
:root {
    --modal-overlay-bg: rgba(10, 14, 39, 0.9);
    --modal-bg: #1a1f3a;
    --modal-bg-secondary: #0f1425;
    --modal-border: rgba(0, 217, 255, 0.2);
    --modal-text: #e2e8f0;
    --modal-text-secondary: #94a3b8;
    --modal-gradient: linear-gradient(135deg, #00D9FF 0%, #00FF88 100%);
    --modal-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    --modal-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   ESTRUCTURA BASE DEL MODAL
======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--modal-transition);
    padding: 1rem;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

/* Overlay del modal */
.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--modal-overlay-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
}

/* Contenedor del modal */
.modal-container {
    position: relative;
    background: var(--modal-bg);
    border-radius: 16px;
    box-shadow: var(--modal-shadow);
    border: 1px solid var(--modal-border);
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(-20px);
    transition: var(--modal-transition);
    z-index: 1;
}

.modal.active .modal-container {
    transform: scale(1) translateY(0);
}

/* ========================================
   HEADER DEL MODAL
======================================== */
.modal-header {
    position: relative;
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--modal-border);
}

.modal-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--modal-text);
    margin: 0;
    background: var(--modal-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--modal-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--modal-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--modal-text);
    transform: rotate(90deg);
}

/* ========================================
   BODY DEL MODAL
======================================== */
.modal-body {
    padding: 2rem;
}

.modal-subtitle {
    color: var(--modal-text-secondary);
    font-size: 0.95rem;
    margin: 0 0 1.5rem;
    line-height: 1.5;
}

/* ========================================
   FORMULARIO
======================================== */
.modal-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--modal-text);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"] {
    background: var(--modal-bg-secondary);
    border: 1px solid var(--modal-border);
    border-radius: 8px;
    padding: 0.875rem 1rem;
    color: var(--modal-text);
    font-size: 0.95rem;
    transition: var(--modal-transition);
}

.form-group input:focus {
    outline: none;
    border-color: #00D9FF;
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.form-group input::placeholder {
    color: var(--modal-text-secondary);
}

/* Input con botón de mostrar/ocultar contraseña */
.input-password {
    position: relative;
    display: flex;
    align-items: center;
}

.input-password input {
    flex: 1;
    padding-right: 3rem;
}

.toggle-password {
    position: absolute;
    right: 0.75rem;
    background: transparent;
    border: none;
    color: var(--modal-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--modal-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: var(--modal-text);
    background: rgba(255, 255, 255, 0.05);
}

/* Checkbox */
.form-group-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.form-group-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: #00D9FF;
}

.form-group-checkbox label {
    color: var(--modal-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    cursor: pointer;
}

.form-group-checkbox label a {
    color: #00D9FF;
    text-decoration: none;
    transition: var(--modal-transition);
}

.form-group-checkbox label a:hover {
    color: #00FF88;
    text-decoration: underline;
}

/* Inline group (recordarme + olvidaste contraseña) */
.form-group-inline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.link-forgot {
    color: #00D9FF;
    font-size: 0.875rem;
    text-decoration: none;
    transition: var(--modal-transition);
}

.link-forgot:hover {
    color: #00FF88;
    text-decoration: underline;
}

/* ========================================
   BOTONES
======================================== */
.btn-modal-primary {
    background: var(--modal-gradient);
    border: none;
    border-radius: 10px;
    padding: 1rem 1.5rem;
    color: #0a0e27;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--modal-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 20px rgba(0, 217, 255, 0.3);
    margin-top: 0.5rem;
}

.btn-modal-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 217, 255, 0.4);
}

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

/* ========================================
   DIVIDER
======================================== */
.modal-divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

.modal-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--modal-border);
}

.modal-divider span {
    position: relative;
    background: var(--modal-bg);
    padding: 0 1rem;
    color: var(--modal-text-secondary);
    font-size: 0.875rem;
}

/* ========================================
   BOTONES SOCIALES
======================================== */
.modal-social {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.btn-social {
    background: var(--modal-bg-secondary);
    border: 1px solid var(--modal-border);
    border-radius: 8px;
    padding: 0.875rem 1rem;
    color: var(--modal-text);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--modal-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-social:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ========================================
   FOOTER DEL MODAL
======================================== */
.modal-footer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--modal-border);
    text-align: center;
}

.modal-footer p {
    color: var(--modal-text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.modal-footer a {
    color: #00D9FF;
    text-decoration: none;
    font-weight: 600;
    transition: var(--modal-transition);
}

.modal-footer a:hover {
    color: #00FF88;
    text-decoration: underline;
}

/* ========================================
   SCROLLBAR PERSONALIZADA
======================================== */
.modal-container::-webkit-scrollbar {
    width: 8px;
}

.modal-container::-webkit-scrollbar-track {
    background: var(--modal-bg-secondary);
    border-radius: 0 16px 16px 0;
}

.modal-container::-webkit-scrollbar-thumb {
    background: rgba(0, 217, 255, 0.3);
    border-radius: 4px;
}

.modal-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 217, 255, 0.5);
}

/* ========================================
   ANIMACIONES
======================================== */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ========================================
   RESPONSIVE
======================================== */
@media (max-width: 640px) {
    .modal {
        padding: 0.5rem;
    }
    
    .modal-container {
        max-height: 95vh;
        border-radius: 12px;
    }
    
    .modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-social {
        grid-template-columns: 1fr;
    }
    
    .form-group-inline {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ========================================
   ESTADOS Y VALIDACIONES
======================================== */
.form-group input.error {
    border-color: #ef4444;
}

.form-group input.success {
    border-color: #00FF88;
}

.form-error {
    color: #ef4444;
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.form-success {
    color: #00FF88;
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

/* Loading state */
.btn-modal-primary.loading {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-modal-primary.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid #0a0e27;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ========================================
   ACCESIBILIDAD
======================================== */
.modal-close:focus-visible,
.btn-modal-primary:focus-visible,
.btn-social:focus-visible {
    outline: 2px solid #00D9FF;
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .modal,
    .modal-container,
    .btn-modal-primary,
    .btn-social,
    .modal-close {
        transition: none;
        animation: none;
    }
}