/* =========================
   VARIABLES GLOBALES
   ========================= */
:root {
    /* Colores principales */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-secondary: #1e40af;
    --color-bg: #ffffff;
    --color-error: #ef4444;
    --color-error-bg: #fef2f2;
    --color-error-border: #fecaca;
    --color-success: #16a34a;
    --color-success-bg: #f0fdf4;
    --color-success-border: #bbf7d0;
    --color-text: #1f2937;
    --color-muted: #64748b;
    --color-border: #e2e8f0;
    --color-footer: #94a3b8;

    /* Espaciados y tamaños */
    --radius: 8px;
    --input-height: 56px;
    --input-height-sm: 52px;
    --container-max-width: 420px;
    --container-padding: 40px;
    --container-padding-sm: 16px;
    --logo-max-width: 200px;
    --logo-max-width-sm: 180px;

    /* Sombras */
    --shadow-btn: 0 4px 12px rgba(59, 130, 246, 0.25);
    --shadow-btn-hover: 0 6px 16px rgba(59, 130, 246, 0.35);

    /* Animaciones */
    --transition: all 0.2s ease;
}

/* =========================
   RESET Y BASE
   ========================= */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--color-bg);
}

/* =========================
   CONTENEDOR PRINCIPAL
   ========================= */
.register-container {
    min-height: 100vh;
    display: flex;
    position: relative;
}

/* =========================
   PANEL IZQUIERDO PROMOCIONAL
   ========================= */
.promo-panel {
    flex: 1;
    background: linear-gradient(135deg, #0f172a 0%, var(--color-secondary) 50%, var(--color-primary-dark) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 60px 40px;
    color: white;
    position: relative;
    overflow: hidden;
    animation: slideInLeft 0.6s ease;
}

.promo-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.promo-content {
    text-align: center;
    max-width: 500px;
    position: relative;
    z-index: 2;
}

.promo-logo {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.promo-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.promo-logo.empty {
    display: none;
}

.promo-title {
    font-size: 38px;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 24px 0;
    letter-spacing: -0.5px;
}

.promo-subtitle {
    font-size: 17px;
    font-weight: 400;
    line-height: 1.6;
    margin: 0 0 40px 0;
    opacity: 0.95;
    color: rgba(255, 255, 255, 0.9);
}

/* =========================
   PANEL DERECHO FORMULARIO
   ========================= */
.form-panel {
    flex: 0 0 520px;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--container-padding);
    overflow-y: auto;
    animation: slideInRight 0.6s ease;
}

.register-card {
    width: 100%;
    max-width: var(--container-max-width);
}

.logo-section {
    text-align: center;
    margin-bottom: 32px;
}

.logo-section img {
    max-width: var(--logo-max-width);
    height: auto;
    margin-bottom: 12px;
    transition: transform 0.3s ease;
}

.logo-section img:hover {
    transform: scale(1.02);
}

.register-title {
    color: var(--color-primary);
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 32px 0;
    text-align: center;
    letter-spacing: 0.3px;
    font-family: inherit;
}

/* =========================
   FORMULARIO
   ========================= */
.form-section {
    margin-bottom: 24px;
}

/* Aumentar especificidad para evitar !important */
.register-container .form-panel .register-card .form-section .form-group {
    position: relative;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    height: auto;
    min-height: unset;
    max-height: unset;
    animation: fadeIn 0.4s ease;
    animation-fill-mode: both;
}

.register-container .form-panel .register-card .form-section .form-group {
    --i: 0; /* índice por defecto */
    animation-delay: calc(var(--i) * 0.05s);
}

.register-container .form-panel .register-card .form-section .form-group .form-control-modern {
    width: 100%;
    height: var(--input-height);
    padding: 0 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 15px;
    background: var(--color-bg);
    transition: var(--transition);
    color: var(--color-text);
    box-sizing: border-box;
    line-height: normal;
    display: flex;
    align-items: center;
    margin: 0;
}

.register-container .form-panel .register-card .form-section .form-group .form-control-modern:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.register-container .form-panel .register-card .form-section .form-group .form-control-modern::placeholder {
    color: #94a3b8;
    font-weight: 400;
    font-size: 15px;
}

.register-container .form-panel .register-card .form-section .form-group .form-control-modern.is-invalid {
    border-color: var(--color-error);
    background: var(--color-error-bg);
}

.register-container .form-panel .register-card .form-section .form-group .form-control-modern[name="name"],
.register-container .form-panel .register-card .form-section .form-group .form-control-modern[name="taxid"] {
    text-transform: uppercase;
}

/* =========================
   MENSAJES DE ERROR Y AYUDA
   ========================= */
.error-message {
    color: var(--color-error);
    font-size: 14px;
    margin-top: 12px;
    margin-left: 5px;
    display: flex;
    align-items: center;
    position: static;
    background: var(--color-error-bg);
    border: 1px solid var(--color-error-border);
    border-radius: var(--radius);
    padding: 8px 12px;
    z-index: 10;
}

.error-message i {
    margin-right: 6px;
    font-size: 12px;
}

.help-text {
    color: var(--color-muted);
    font-size: 12px;
    margin-top: 6px;
    margin-left: 4px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
}

.form-group-with-help {
    margin-bottom: 36px;
}

/* =========================
   TÉRMINOS Y CONDICIONES
   ========================= */
.terms-group {
    margin-bottom: 24px;
    height: auto;
}

.terms-checkbox {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    position: relative;
    padding-left: 32px;
    line-height: 1.4;
    font-size: 14px;
    color: var(--color-muted);
}

.terms-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 2px;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: 4px;
    transition: var(--transition);
}

.terms-checkbox:hover input~.checkmark {
    border-color: var(--color-primary);
    background-color: #f8fafc;
}

.terms-checkbox input:checked~.checkmark {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.terms-checkbox input:checked~.checkmark:after {
    display: block;
}

.terms-checkbox .checkmark:after {
    left: 6px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.terms-text {
    flex: 1;
    margin-top: 1px;
}

.terms-text a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 1px 2px;
    border-radius: 3px;
}

.terms-text a:hover {
    color: var(--color-primary-dark);
    background: rgba(59, 130, 246, 0.1);
    text-decoration: underline;
}

/* =========================
   BOTÓN PRINCIPAL
   ========================= */
.button-section {
    margin: 32px 0 24px 0;
}

/* usar selector más específico para botón principal */
.register-container .form-panel .register-card .button-section .btn-register,
.register-container .form-panel .register-card .button-section button.btn-register {
    width: 100%;
    height: var(--input-height);
    padding: 0 16px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border: none;
    border-radius: var(--radius);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: none;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    margin: 0;
    box-shadow: var(--shadow-btn);
}

.register-container .form-panel .register-card .button-section .btn-register:hover,
.register-container .form-panel .register-card .button-section button.btn-register:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-btn-hover);
}

.register-container .form-panel .register-card .button-section .btn-register:active,
.register-container .form-panel .register-card .button-section button.btn-register:active {
    transform: translateY(0);
}

.register-container .form-panel .register-card .button-section .btn-register:disabled,
.register-container .form-panel .register-card .button-section button.btn-register:disabled {
    background: linear-gradient(135deg, #d1d5db, #9ca3af);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* =========================
   DIVISOR Y ENLACES
   ========================= */
.divider {
    margin: 24px 0;
    position: relative;
    text-align: center;
}

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

.divider span {
    background: var(--color-bg);
    padding: 0 16px;
    color: var(--color-muted);
    font-size: 14px;
}

.login-link {
    text-align: center;
    margin-bottom: 16px;
    animation: fadeIn 0.4s 0.5s ease both;
}

.login-link p {
    color: var(--color-muted);
    margin: 0;
    font-size: 14px;
}

.login-link a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    padding: 4px 8px;
    border-radius: 4px;
}

.login-link a:hover {
    color: white;
    background: var(--color-primary);
    transform: translateY(-1px);
}

/* =========================
   FOOTER
   ========================= */
.footer-text {
    text-align: center;
    color: var(--color-footer);
    font-size: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
    line-height: 1.4;
    font-weight: 400;
}

/* =========================
   MENSAJES GENERALES
   ========================= */
#general_messages {
    margin-bottom: 20px;
}

#general_messages .alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0;
    position: relative;
    animation: none;
    opacity: 1;
    transform: none;
}

#general_messages .alert-danger {
    background: var(--color-error-bg);
    border: 2px solid var(--color-error-border);
    color: #dc2626;
}

#general_messages .alert-success {
    background: var(--color-success-bg);
    border: 2px solid var(--color-success-border);
    color: var(--color-success);
}

#general_messages .alert i {
    margin-right: 10px;
    font-size: 16px;
}

#general_messages .alert .alert-content {
    display: flex;
    align-items: center;
    flex: 1;
}

#general_messages .alert .close-btn {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    opacity: 0.7;
    transition: var(--transition);
    margin-left: 12px;
    font-size: 16px;
}

#general_messages .alert .close-btn:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.1);
}

/* =========================
   OVERLAY DE CARGA
   ========================= */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.loading-overlay img {
    width: 80px;
    margin-bottom: 16px;
}

.loading-overlay h2 {
    color: var(--color-text);
    font-size: 16px;
    font-weight: 500;
}

/* Utilidad: mantener .hidden con prioridad */
.hidden {
    display: none !important;
}

/* =========================
   ANIMACIONES
   ========================= */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 1024px) {
    .form-panel {
        flex: 0 0 460px;
        padding: 30px;
    }

    .promo-title {
        font-size: 32px;
    }

    .promo-subtitle {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .register-container {
        justify-content: center;
        align-items: center;
        padding: 20px;
        background: var(--color-bg);
    }

    .promo-panel {
        display: none;
    }

    .form-panel {
        flex: none;
        width: 100%;
        max-width: var(--container-max-width);
        padding: 20px;
        background: var(--color-bg);
    }

    .register-card {
        max-width: none;
    }

    .register-title {
        font-size: 22px;
    }
}

@media (max-width: 576px) {
    .form-panel {
        padding: var(--container-padding-sm);
    }

    .register-card {
        padding: 0;
    }

    .register-container .form-panel .register-card .form-section .form-group {
        height: auto;
        min-height: var(--input-height-sm);
        max-height: none;
    }

    .register-container .form-panel .register-card .button-section .btn-register,
    .btn-register {
        height: var(--input-height-sm);
        min-height: var(--input-height-sm);
        max-height: var(--input-height-sm);
        font-size: 14px;
    }

    .register-container .form-panel .register-card .form-section .form-group .form-control-modern,
    .form-control-modern {
        height: var(--input-height-sm);
        min-height: var(--input-height-sm);
        max-height: var(--input-height-sm);
        padding: 0 14px;
        font-size: 14px;
    }

    .register-title {
        font-size: 20px;
    }

    .logo-section img {
        max-width: var(--logo-max-width-sm);
    }

    /* Mejoras para mensajes de error en móviles */
    .error-message {
        font-size: 13px;
        padding: 6px 10px;
        margin-left: 0;
        margin-right: 0;
        width: 100%;
        word-wrap: break-word;
        box-sizing: border-box;
    }

    .error-message i {
        font-size: 11px;
        margin-right: 4px;
    }
}

/* =========================
   ACCESIBILIDAD Y OTROS
   ========================= */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none;
        transition: none;
    }
}

.form-control-modern:focus-visible,
.btn-register:focus-visible,
.login-link a:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.5);
    outline-offset: 2px;
}

/* =========================
   REGLAS DE CONSISTENCIA
   ========================= */
.register-container .form-panel .register-card .form-section .form-group input.form-control-modern,
.register-container .form-panel .register-card .button-section button.btn-register {
    height: var(--input-height);
    min-height: var(--input-height);
    max-height: var(--input-height);
    border-radius: var(--radius);
    box-sizing: border-box;
    display: flex;
    align-items: center;
    width: 100%;
}

@media (max-width: 576px) {
    .register-container .form-panel .register-card .form-section .form-group input.form-control-modern,
    .register-container .form-panel .register-card .button-section button.btn-register {
        height: var(--input-height-sm);
        min-height: var(--input-height-sm);
        max-height: var(--input-height-sm);
    }
}

/* =========================
    Estilos para términos y condiciones
    ========================= */
.terms-checkbox input:focus:invalid + .checkmark,
.terms-checkbox input.is-invalid + .checkmark {
    border-color: var(--color-error) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
}

.terms-checkbox input.is-invalid ~ .terms-text {
    color: var(--color-error) !important;
}

/* Asegurar que el checkbox marcado no tenga estilos de error */
.terms-checkbox input:checked.is-invalid + .checkmark {
    border-color: var(--color-primary) !important;
    background-color: var(--color-primary) !important;
    box-shadow: none !important;
}

.terms-checkbox input:checked.is-invalid ~ .terms-text {
    color: var(--color-muted) !important;
}

/* Consolidado: visibilidad y flujo para el error de términos */
.form-group.terms-group {
    display: block;
    width: 100%;
    position: relative;
    overflow: visible;
    margin-bottom: 8px;
}

.form-group.terms-group > label.terms-checkbox {
    display: block;
    margin-bottom: 6px;
}

/* asegurar que contenedores padres no recorten el mensaje */
.register-card,
.form-panel,
.form-section {
    overflow: visible;
}