/* Tema oscuro moderno */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Poppins", sans-serif;
    color: #f5f5f5;
    background: #faf9ff;
    display: grid;
    place-items: center;
}


.auth-card {
    position: relative;
    width: min(520px, calc(100vw - 32px));
    padding: 28px;
    border-radius: 24px; /* Se conserva */
    background: rgba(247, 237, 255, 0.95);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    backdrop-filter: blur(15px);
}

.auth-header {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center;
}

.tab {
    flex: 1;
    border: none;
    padding: 12px 14px;
    border-radius: 999px; 
    background: #2d3748;
    color: #d1d5db;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}

.tab:hover {
    background: #374151;
}

.tab.active {
    background: #C9BEFF;
    color: rgb(0, 0, 0);
}

.alert {
    padding: 12px 16px;
    border-radius: 14px; 
    margin-bottom: 16px;
}

.alert-error {
    background: rgba(255, 77, 77, 0.15);
    color: #ffb4b4;
    border: 1px solid rgba(255, 77, 77, 0.3);
}

.alert-success {
    background: rgba(0, 255, 136, 0.15);
    color: #9fffcf;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.welcome-box {
    padding: 14px 16px;
    border-radius: 16px; 
    margin-bottom: 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    color: #e5e7eb;
}

.form-panel {
    display: none;
    gap: 12px;
}

.form-panel.active {
    display: grid;
}

label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #000000;
}

input {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px; 
    border: 1px solid #374151;
    background: #ebe0ff;
    color: rgb(0, 0, 0);
    font-size: 0.95rem;
    transition: 0.3s;
}

input::placeholder {
    color: #9ca3af;
}

input:focus {
    border-color: #C9BEFF;
    box-shadow: 0 0 0 5px rgba(153, 0, 255, 0.15);
    outline: none;
}

.captcha-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
}

.captcha-refresh {
    border: none;
    border-radius: 12px;
    background: #00c6ff;
    color: white;
    font-weight: 600;
    cursor: pointer;
    padding: 8px 14px;
}

.captcha-box {
    margin-top: 10px;
    padding: 12px 14px;
    border-radius: 12px; 
    background: rgba(255,255,255,0.05);
    border: 1px dashed rgba(255,255,255,0.2);
    text-align: center;
    letter-spacing: 4px;
    color: #838383;
    font-weight: bold;
}

.submit-button {
    width: 100%;
    border: none;
    padding: 14px 16px;
    border-radius: 14px; 
    background: linear-gradient(135deg, #C9BEFF, #7928ca);
    color: rgb(0, 0, 0);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: 0.3s;
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(140, 0, 255, 0.3);
}


@media (max-width: 480px) {
    .auth-card {
        padding: 18px;
    }
}