/* ==================== RESET & VARIABLES ==================== */
:root {
    --deep-blue: #0B2545;
    --ocean-blue: #134074;
    --aqua-glow: #00B4D8;
    --light-aqua: #90E0EF;
    --dark-navy: #05161A;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: radial-gradient(circle at 30% 20%, #1B3A5C, #0B2545);
    min-height: 100vh;
    color: #1E2A41;
}

/* ==================== WRAPPER (CENTRADO) ==================== */
.login-wrapper {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* Fondo animado sutil */
.login-bg {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.05"><path d="M10,50 L30,30 L50,50 L70,30 L90,50" stroke="white" fill="none" stroke-width="0.8"/><path d="M20,70 L40,50 L60,70 L80,50" stroke="white" fill="none" stroke-width="0.8"/></svg>');
    background-size: 200px;
    opacity: 0.2;
    pointer-events: none;
}

/* ==================== TARJETA PRINCIPAL (GLASS) ==================== */
.login-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 32px;
    padding: 40px 35px;
    width: 100%;
    max-width: 480px;
    box-shadow: 0 30px 50px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 180, 216, 0.2);
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease;
}

.login-card:hover {
    transform: translateY(-5px);
}

/* ==================== TIPOGRAFÍA ==================== */
.login-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--deep-blue);
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.login-subtitle {
    color: #5A6D7C;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    font-weight: 400;
}

/* ==================== FORMULARIOS ==================== */
.form-floating > .form-control,
.form-floating > .form-select {
    border-radius: 16px;
    border: 1px solid rgba(19, 64, 116, 0.15);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(5px);
    padding: 12px 16px;
    height: calc(3.8rem + 2px);
    font-size: 1rem;
    transition: all 0.2s;
}

.form-floating > .form-control:focus,
.form-floating > .form-select:focus {
    border-color: var(--aqua-glow);
    box-shadow: 0 0 0 4px rgba(0, 180, 216, 0.15);
    background: white;
}

.form-floating > label {
    padding: 12px 16px;
    color: #5A6D7C;
}

/* Input custom para mejor aspecto */
.custom-input {
    border-radius: 16px !important;
}

/* ==================== BOTÓN PRINCIPAL ==================== */
.btn-login {
    background: var(--aqua-glow);
    border: none;
    color: var(--deep-blue);
    font-weight: 700;
    padding: 14px 20px;
    border-radius: 50px;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: 0 8px 20px rgba(0, 180, 216, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.3);
    letter-spacing: 0.3px;
}

.btn-login:hover {
    background: white;
    color: var(--deep-blue);
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(0, 180, 216, 0.4);
}

/* ==================== ENLACES ==================== */
.toggle-link {
    color: var(--aqua-glow);
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    text-decoration: none;
    font-size: 0.9rem;
}

.toggle-link:hover {
    color: var(--ocean-blue);
    text-decoration: underline;
}

.back-link {
    color: #6c8395;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: 0.2s;
}

.back-link:hover {
    color: var(--deep-blue);
}

/* ==================== VIDEO ==================== */
.login-video {
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border: 2px solid rgba(255,255,255,0.5);
    max-width: 100%;
    height: auto;
}

/* ==================== ANIMACIONES ==================== */
.animate-fade {
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 576px) {
    .login-card {
        padding: 30px 20px;
        border-radius: 28px;
    }
    .login-title {
        font-size: 1.9rem;
    }
}

/* Ajuste para reCAPTCHA */
.g-recaptcha {
    transform: scale(0.95);
    transform-origin: center;
}

/* Validación visual */
.is-valid {
    border-color: #198754 !important;
    background-image: none !important;
}
.is-invalid {
    border-color: #dc3545 !important;
    background-image: none !important;
}
#passFeedback {
    padding-left: 10px;
}