/* --- FUENTES Y VARIABLES (Tema Claro) --- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --brand-blue: #093454;
    --brand-red: #D91023;
    --bg-page: #f4f6f9; /* Gris muy suave/azulado */
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --input-bg: #f8fafc;
    --input-border: #e2e8f0;
    --focus-ring: rgba(9, 52, 84, 0.15);
    --radius: 16px;
    --font-main: 'Plus Jakarta Sans', sans-serif;
}

body {
    background-color: var(--bg-page);
    font-family: var(--font-main);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}

/* --- TARJETA PRINCIPAL --- */
.card-registration {
    background: var(--bg-card);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.05); /* Sombra ultra suave */
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

/* Decoración sutil de fondo */
.card-registration::before {
    content: '';
    position: absolute;
    top: -50px; right: -50px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(9, 52, 84, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

/* --- STEPPER (PROGRESO) --- */
.progress-bar-container {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-bottom: 3rem;
    padding: 0 1rem;
}

/* Línea conectora */
.progress-bar-container::before {
    content: '';
    position: absolute;
    top: 20px; left: 5%; width: 90%; height: 2px;
    background: var(--input-border);
    z-index: 0;
}

.step {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: default;
    flex: 1;
}

.step-circle {
    width: 42px; height: 42px;
    background: var(--bg-card);
    border: 2px solid var(--input-border);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700;
    color: var(--text-muted);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.step-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: all 0.3s;
}

/* Estados del Stepper */
.step.active .step-circle {
    background: var(--brand-blue);
    border-color: var(--brand-blue);
    color: white;
    box-shadow: 0 4px 12px rgba(9, 52, 84, 0.2);
    transform: scale(1.1);
}
.step.active .step-title { color: var(--brand-blue); }

.step.completed .step-circle {
    background: #10b981; /* Verde éxito */
    border-color: #10b981;
    color: white;
}
.step.completed .step-title { color: #10b981; }


/* --- FORMULARIOS --- */
.form-step {
    display: none;
    animation: slideUpFade 0.4s ease-out forwards;
}
.form-step.active { display: block; }

@keyframes slideUpFade {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    background-color: var(--input-bg);
    border: 1px solid transparent; /* Sin borde inicial para look minimalista */
    border-radius: 12px;
    padding: 0.8rem 1rem;
    font-size: 0.95rem;
    color: var(--text-main);
    transition: all 0.3s;
}

.form-control:focus, .form-select:focus {
    background-color: #fff;
    border-color: var(--brand-blue);
    box-shadow: 0 0 0 4px var(--focus-ring);
}

/* Input Group (Password) */
.input-group-text {
    background-color: var(--input-bg);
    border: 1px solid transparent;
    border-radius: 0 12px 12px 0;
    color: var(--text-muted);
    cursor: pointer;
}
.input-group .form-control { border-right: none; }
.input-group .form-control:focus + .input-group-text {
    background-color: #fff;
    border-color: var(--brand-blue);
    border-left: none;
}

/* --- BOTONES --- */
.btn {
    padding: 0.8rem 2rem;
    border-radius: 50px; /* Estilo Pill */
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--brand-blue);
    border: none;
    box-shadow: 0 4px 15px rgba(9, 52, 84, 0.2);
}
.btn-primary:hover {
    background-color: #0c436b;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(9, 52, 84, 0.3);
}

.btn-secondary {
    background-color: #e2e8f0;
    color: var(--text-main);
    border: none;
}
.btn-secondary:hover {
    background-color: #cbd5e1;
    color: var(--text-main);
}

.btn-success {
    background-color: #10b981;
    border: none;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.25);
}

/* --- UPLOAD BOX (Archivos) --- */
.custom-file-upload {
    border: 2px dashed var(--input-border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    background: var(--input-bg);
    transition: all 0.3s;
    cursor: pointer;
    position: relative;
}
.custom-file-upload:hover {
    border-color: var(--brand-blue);
    background: rgba(9, 52, 84, 0.02);
}
.upload-icon {
    font-size: 2rem;
    color: var(--brand-blue);
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .card-registration { padding: 1.5rem; }
    .step-title { display: none; } /* Ocultar texto en móviles */
    .progress-bar-container::before { top: 20px; }
}