/* Form Container Styling */
.zephyr-form {
    max-width: 500px;
    margin: 2rem auto;
    padding: 2rem;
    border: 1px solid var(--md-default-fg-color--lightest);
    border-radius: 12px;
    background: var(--md-default-bg-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.zephyr-form h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--md-primary-fg-color);
    text-align: center;
}

/* Material Design Input Fields */
.form-field {
    position: relative;
    margin: 1.5rem 0;
}

.form-field input {
    width: 100%;
    padding: 16px 12px 8px;
    border: 1px solid var(--md-default-fg-color--lighter);
    border-radius: 4px 4px 0 0;
    background: transparent;
    font-size: 16px;
    outline: none;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.form-field input:focus {
    border-color: var(--md-primary-fg-color);
    border-width: 2px;
    border-bottom-color: var(--md-primary-fg-color);
}

.form-field input:invalid {
    border-color: var(--md-error-fg-color, #f44336);
}

.form-field label {
    position: absolute;
    top: 16px;
    left: 12px;
    color: var(--md-default-fg-color--light);
    font-size: 16px;
    pointer-events: none;
    transition: all 0.2s ease;
    background: var(--md-default-bg-color);
    padding: 0 4px;
}

.form-field input:focus + label,
.form-field input:not(:placeholder-shown) + label {
    top: -8px;
    left: 8px;
    font-size: 12px;
    color: var(--md-primary-fg-color);
    font-weight: 500;
}

/* Submit Button */
.form-submit {
    width: 100%;
    padding: 14px;
    background: var(--md-primary-fg-color);
    color: var(--md-primary-bg-color);
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-submit:hover {
    background: var(--md-primary-fg-color--dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.form-submit:active {
    transform: translateY(0);
}

.form-submit:disabled {
    background: var(--md-default-fg-color--lighter);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Success/Error Messages */
.form-message {
    padding: 12px;
    border-radius: 4px;
    margin: 1rem 0;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--md-success-fg-color, #4caf50);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.form-message.error {
    background: rgba(244, 67, 54, 0.1);
    color: var(--md-error-fg-color, #f44336);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

/* Dark Mode Support */
[data-md-color-scheme="slate"] .zephyr-form {
    background: var(--md-default-bg-color);
    border-color: var(--md-default-fg-color--lightest);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-md-color-scheme="slate"] .form-field input {
    background: var(--md-code-bg-color);
    color: var(--md-default-fg-color);
}

[data-md-color-scheme="slate"] .form-field label {
    background: var(--md-default-bg-color);
}

/* Responsive Design */
@media (max-width: 600px) {
    .zephyr-form {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .form-field input {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* Loading State */
.form-loading .form-submit {
    position: relative;
    color: transparent;
}

.form-loading .form-submit::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}