body {
    font-family: 'Segoe UI', 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

.register-hero {
    min-height: 70vh;
    background: #15305D; /* Solid blue background */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 0 32px 0;
    border-bottom-left-radius: 32px;
    border-bottom-right-radius: 32px;
    box-shadow: 0 8px 32px rgba(21, 48, 93, 0.3);
}

.register-card {
    background: #FFFFFF;
    border-radius: 28px;
    box-shadow: 0 8px 32px rgba(21, 48, 93, 0.3), 0 2px 0 #FFD700 inset;
    padding: 40px 32px 32px 32px;
    max-width: 420px;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 2;
    animation: registerPop 1.2s cubic-bezier(.4,2,.6,1);
}
@keyframes registerPop {
    0% { transform: scale(0.8) rotateY(-10deg); opacity: 0; }
    100% { transform: scale(1) rotateY(0deg); opacity: 1; }
}
.register-card h1 {
    color: #15305D;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.register-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 0;
}
.register-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

#subjects-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.subject-input {
    padding: 10px;
    border: 1px solid #FFD700;
    border-radius: 8px;
    width: 100%;
    font-size: 1rem;
    background: #FFFFFF;
    color: #15305D;
    margin-bottom: 0;
    transition: border 0.2s;
}

.register-form label {
    font-weight: 500;
    color: #15305D;
}
.register-form input,
.register-form select {
    padding: 10px;
    border: 1px solid #FFD700;
    border-radius: 8px;
    width: 100%;
    font-size: 1rem;
    background: #FFFFFF;
    color: #15305D;
    transition: border 0.2s;
}
.register-form input:focus,
.register-form select:focus {
    border: 1.5px solid #15305D;
    outline: none;
}
.register-btn {
    background: #15305D;
    color: #FFFFFF;
    border: none;
    border-radius: 20px;
    padding: 12px 32px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(21, 48, 93, 0.3);
}
.register-btn:hover {
    background: #FFD700;
    color: #15305D;
    border: 1px solid #15305D;
}
.add-subject-btn {
    margin-top: 8px;
    background: #FFD700;
    color: #15305D;
    border: 2px solid #FFD700;
    border-radius: 16px;
    padding: 7px 18px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(21, 48, 93, 0.2);
    outline: none;
    display: inline-block;
}
.add-subject-btn:hover, .add-subject-btn:focus {
    background: #15305D;
    color: #FFFFFF;
    border: 2px solid #15305D;
    box-shadow: 0 4px 16px rgba(21, 48, 93, 0.3);
}
.main-footer {
    background: #FFFFFF;
    color: #15305D;
    text-align: center;
    padding: 24px 0 12px 0;
    font-size: 1rem;
    border-top: 1px solid #FFD700;
    border-bottom-left-radius: 32px;
    border-bottom-right-radius: 32px;
    margin-top: 0;
}

.register-form input[type="file"] {
    padding: 8px 0;
    border: none;
    border-radius: 8px;
    background: none;
    color: #15305D;
    font-size: 1rem;
    width: 100%;
}

.register-form input[type="file"]::-webkit-file-upload-button {
    background: #15305D;
    color: #FFFFFF;
    border: none;
    border-radius: 16px;
    padding: 8px 22px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-right: 12px;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(21, 48, 93, 0.2);
}

.register-form input[type="file"]:hover::-webkit-file-upload-button,
.register-form input[type="file"]:focus::-webkit-file-upload-button {
    background: #FFD700;
    color: #15305D;
    box-shadow: 0 4px 16px rgba(21, 48, 93, 0.3);
}

.register-form input[type="file"]::file-selector-button {
    background: #15305D;
    color: #FFFFFF;
    border: none;
    border-radius: 16px;
    padding: 8px 22px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-right: 12px;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(21, 48, 93, 0.2);
}

.register-form input[type="file"]:hover::file-selector-button,
.register-form input[type="file"]:focus::file-selector-button {
    background: #FFD700;
    color: #15305D;
    box-shadow: 0 4px 16px rgba(21, 48, 93, 0.3);
}

.register-login-link {
    margin-top: 18px;
    text-align: center;
    color: #15305D;
    font-size: 1rem;
}
.register-login-link a {
    color: #15305D;
    font-weight: 600;
    text-decoration: underline;
    margin-left: 4px;
    transition: color 0.2s;
}
.register-login-link a:hover {
    color: #FFD700;
}

@media (max-width: 600px) {
    .register-hero {
        padding: 18px 0 10px 0;
        border-bottom-left-radius: 16px;
        border-bottom-right-radius: 16px;
    }
    .register-card {
        padding: 16px 4vw 12px 4vw;
        border-radius: 14px;
    }
    .main-footer {
        border-bottom-left-radius: 16px;
        border-bottom-right-radius: 16px;
        padding: 12px 0 6px 0;
        font-size: 0.95rem;
    }
}