/* --- Global Styles --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body.dark-theme {
    background: #2b1d1a; /* Very Dark Brown Background */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

/* --- Auth Box Container --- */
.auth-box {
    background: #3e2723; /* Medium Dark Brown */
    width: 100%;
    max-width: 400px;
    padding: 35px 25px;
    border-radius: 24px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- Logo & Header --- */
.logo-container h1 {
    color: #ffc107; /* Gold/Yellow */
    font-size: 2.2rem;
    margin-top: 10px;
    letter-spacing: 1px;
}

.logo-container p {
    color: #bcaaa4; /* Light Brown Text */
    font-size: 0.9rem;
    margin-bottom: 30px;
}

.logo-bg {
    background: #ffc107;
    width: 80px;
    height: 80px;
    margin: 0 auto;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 8px 20px rgba(255, 193, 7, 0.3);
}

.logo {
    width: 50px;
    height: 50px;
}

/* --- Tabs --- */
.tabs {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    padding: 5px;
    border-radius: 12px;
    margin-bottom: 25px;
}

.tabs button {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: #bcaaa4;
    font-weight: bold;
    cursor: pointer;
    border-radius: 8px;
    transition: 0.3s;
}

.tabs button.active {
    background: #4e342e;
    color: #ffc107;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* --- Form Elements --- */
.form-container {
    width: 100%;
}

.input-group {
    margin-bottom: 15px;
}

.input-group input, 
.input-group select {
    width: 100%;
    padding: 14px 18px;
    border-radius: 12px;
    border: 1px solid #5d4037;
    background: #4e342e;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: 0.3s;
}

.input-group input:focus {
    border-color: #ffc107;
    background: #5d4037;
}

.input-group input::placeholder {
    color: #a1887f;
}

/* --- Buttons --- */
.main-btn {
    width: 100%;
    padding: 15px;
    border-radius: 12px;
    border: none;
    background: #ffc107;
    color: #3e2723;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    margin-top: 10px;
    transition: 0.3s;
    box-shadow: 0 6px 15px rgba(255, 193, 7, 0.2);
}

.main-btn:hover {
    background: #ffca28;
    transform: translateY(-2px);
}

.main-btn:active {
    transform: translateY(0);
}

/* --- Footer --- */
.footer-links p {
    margin-top: 30px;
    font-size: 0.75rem;
    color: #6d4c41;
}