/* Container & Base Variables */
.fba-dark-theme {
    --bg-color: #1a1a1a;
    --card-bg: #222222;
    --text-main: #ffffff;
    --text-sub: #a0a0a0;
    --border-color: #333333;
    --primary-orange: #d94f21; 
    --primary-orange-hover: #c4451c;
    
    background-color: var(--bg-color);
    padding: 40px 20px;
    display: flex;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.fba-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 40px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid var(--border-color);
}

.fba-icon-top {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px auto;
    border-radius: 12px;
    background-color: rgba(217, 79, 33, 0.1);
    color: var(--primary-orange);
    display: flex;
    align-items: center;
    justify-content: center;
}

.fba-card h2 {
    color: var(--text-main);
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 10px 0;
}

.fba-subtitle {
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 30px;
}

.fba-subtitle a {
    color: var(--text-sub);
    text-decoration: none;
}
.fba-subtitle a:hover {
    color: var(--text-main);
}

/* Inputs */
.fba-input-group {
    text-align: left;
    margin-bottom: 20px;
}

.fba-input-group label {
    display: block;
    color: var(--text-sub);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.fba-input-group input {
    width: 100%;
    padding: 14px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 16px;
    box-sizing: border-box;
}

.fba-input-group input:focus {
    outline: none;
    border-color: var(--primary-orange);
}

.fba-error-text {
    color: #ff4d4d;
    font-size: 12px;
    margin-top: 8px;
    padding: 10px;
    background: rgba(255, 77, 77, 0.1);
    border: 1px solid rgba(255, 77, 77, 0.3);
    border-radius: 6px;
}

/* OTP Specific Input */
.fba-otp-input {
    width: 100%;
    letter-spacing: 15px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    padding: 15px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    margin-bottom: 25px;
}

/* Buttons */
.fba-btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: background-color 0.2s;
}

.fba-btn-primary {
    background-color: var(--primary-orange);
    color: #ffffff;
}

.fba-btn-primary:hover {
    background-color: var(--primary-orange-hover);
}