form {
    margin: 0;
}

fieldset {
    border: none;
    padding: 0;
    margin: 0;
}


.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1.5rem;
}

.form-row .form-group {
    flex: 1;
}


.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-label.required::after {
    content: " *";
    color: var(--accent);
}


.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: white;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--focus-primary);
    box-shadow: 0 0 0 3px var(--focus-shadow-primary);
}

.form-input.error,
.form-textarea.error,
.form-select.error {
    border-color: var(--error);
}

.form-input.error:focus,
.form-textarea.error:focus,
.form-select.error:focus {
    box-shadow: 0 0 0 3px var(--focus-shadow-error);
}


.form-textarea {
    resize: vertical;
    min-height: 120px;
}


.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
    appearance: none;
}


.form-help {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.form-hint {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-style: italic;
}


.form-error {
    display: block;
    margin-top: 0.15rem;
    color: var(--error);
    font-size: 0.875rem;
    min-height: 1.2em;
}

.form-error:empty {
    display: none;
}


.form-actions {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-separator);
    text-align: center;
}

.form-note {
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}


.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}


.btn--primary {
    background-color: var(--accent);
    color: white;
}

.btn--primary:hover:not(:disabled) {
    background-color: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
}

.btn--secondary {
    background-color: var(--text);
    color: white;
}

.btn--secondary:hover:not(:disabled) {
    background-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn--outline {
    background-color: transparent;
    color: var(--text);
    border: 2px solid #333;
}

.btn--outline:hover:not(:disabled) {
    background-color: var(--text);
    color: white;
}


.btn--large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn--small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}


.btn-loading {
    display: none;
}

.btn:disabled .btn-loading {
    display: inline-block;
    margin-left: 0.5rem;
}

.btn:disabled .btn-loading::after {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}


.alert {
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border-radius: var(--radius-md);
    position: relative;
}

.alert__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.alert__message {
    flex: 1;
}

.alert__close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.3s ease;
    padding: 0;
    margin-left: 1rem;
}

.alert__close:hover {
    opacity: 1;
}


.alert--success {
    background-color: var(--alert-success-bg);
    color: var(--alert-success-text);
    border: 1px solid var(--alert-success-border);
}

.alert--error {
    background-color: var(--alert-error-bg);
    color: var(--alert-error-text);
    border: 1px solid var(--alert-error-border);
}

.alert--warning {
    background-color: var(--alert-warning-bg);
    color: var(--alert-warning-text);
    border: 1px solid var(--alert-warning-border);
}

.alert--info {
    background-color: var(--alert-info-bg);
    color: var(--alert-info-text);
    border: 1px solid var(--alert-info-border);
}


.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
    margin-right: 0.5rem;
}

.form-checkbox label,
.form-radio label {
    margin-bottom: 0;
    font-weight: normal;
}


.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
    background-color: var(--background-alt);
    color: var(--text-lighter);
    cursor: not-allowed;
}


.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-lighter);
}


/* BEM-style form components for specific use cases */
.form--inline {
    display: flex;
    align-items: flex-end;
    gap: 1.5rem;
}

.form--inline .form-group {
    margin-bottom: 0;
    flex: 1;
}


@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-actions {
        text-align: left;
    }
    
    .btn {
        width: 100%;
    }
}