/**
 * AIDocBot - Forms Component
 * Design System Version 1.0
 */

/* ========================================
   FORM GROUP
   ======================================== */

.form-group {
    margin-bottom: var(--space-6);
}

/* ========================================
   LABELS
   ======================================== */

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--neutral-700);
    margin-bottom: var(--space-2);
}

.form-label-required::after {
    content: '*';
    color: var(--error);
    margin-left: var(--space-1);
}

/* ========================================
   TEXT INPUTS, SELECTS, TEXTAREAS
   ======================================== */

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    font-family: var(--font-family);
    color: var(--neutral-900);
    background: white;
    border: 1.5px solid var(--neutral-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
        outline: none;
        border-color: var(--brand-primary);
        box-shadow: 0 0 0 3px rgba(43, 91, 186, 0.1);
    }

    .form-input::placeholder,
    .form-textarea::placeholder {
        color: var(--neutral-400);
    }

    /* Disabled State */
    .form-input:disabled,
    .form-select:disabled,
    .form-textarea:disabled {
        background: var(--neutral-50);
        cursor: not-allowed;
        color: var(--neutral-500);
        border-color: var(--neutral-200);
    }

    /* ========================================
   ERROR STATE
   ======================================== */

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

        .form-input.error:focus,
        .form-select.error:focus,
        .form-textarea.error:focus {
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
        }

    /* ========================================
   SUCCESS STATE
   ======================================== */

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

        .form-input.success:focus,
        .form-select.success:focus,
        .form-textarea.success:focus {
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

/* ========================================
   HELP TEXT
   ======================================== */

.form-help {
    font-size: var(--text-sm);
    color: var(--neutral-600);
    margin-top: var(--space-2);
    display: block;
}

/* ========================================
   ERROR MESSAGE
   ======================================== */

.form-error {
    font-size: var(--text-sm);
    color: var(--error);
    margin-top: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

    .form-error i {
        font-size: 14px;
    }

/* ========================================
   SUCCESS MESSAGE
   ======================================== */

.form-success {
    font-size: var(--text-sm);
    color: var(--success);
    margin-top: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* ========================================
   CHECKBOX & RADIO
   ======================================== */

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.form-check-input {
    width: 20px;
    height: 20px;
    border: 1.5px solid var(--neutral-300);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-base);
    margin: 0;
    flex-shrink: 0;
}

    .form-check-input[type="radio"] {
        border-radius: 50%;
    }

    .form-check-input:checked {
        background: var(--brand-primary);
        border-color: var(--brand-primary);
    }

    .form-check-input:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(43, 91, 186, 0.1);
    }

.form-check-label {
    font-size: var(--text-base);
    color: var(--neutral-700);
    cursor: pointer;
    user-select: none;
}

/* ========================================
   SWITCH / TOGGLE
   ======================================== */

.form-switch {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.form-switch-input {
    position: relative;
    width: 48px;
    height: 24px;
    appearance: none;
    background: var(--neutral-300);
    border-radius: 9999px;
    cursor: pointer;
    transition: background var(--transition-base);
}

    .form-switch-input::before {
        content: '';
        position: absolute;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: white;
        top: 2px;
        left: 2px;
        transition: transform var(--transition-base);
    }

    .form-switch-input:checked {
        background: var(--brand-primary);
    }

        .form-switch-input:checked::before {
            transform: translateX(24px);
        }

.form-switch-label {
    font-size: var(--text-base);
    color: var(--neutral-700);
    cursor: pointer;
}

/* ========================================
   INPUT GROUPS
   ======================================== */

.input-group {
    display: flex;
    gap: 0;
}

    .input-group .form-input {
        border-radius: 0;
        border-right: none;
    }

        .input-group .form-input:first-child {
            border-top-left-radius: var(--radius-md);
            border-bottom-left-radius: var(--radius-md);
        }

        .input-group .form-input:last-child {
            border-top-right-radius: var(--radius-md);
            border-bottom-right-radius: var(--radius-md);
            border-right: 1.5px solid var(--neutral-300);
        }

.input-group-text {
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    background: var(--neutral-100);
    border: 1.5px solid var(--neutral-300);
    color: var(--neutral-600);
    font-size: var(--text-base);
    border-right: none;
}

    .input-group-text:first-child {
        border-top-left-radius: var(--radius-md);
        border-bottom-left-radius: var(--radius-md);
    }

    .input-group-text:last-child {
        border-top-right-radius: var(--radius-md);
        border-bottom-right-radius: var(--radius-md);
        border-right: 1.5px solid var(--neutral-300);
    }

.input-group button:last-child {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* ========================================
   FORM INPUT SIZES
   ======================================== */

.form-input-sm,
.form-select-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
}

.form-input-lg,
.form-select-lg {
    padding: var(--space-4) var(--space-5);
    font-size: var(--text-lg);
}

/* ========================================
   FILE INPUT
   ======================================== */

.form-file {
    position: relative;
    display: inline-block;
    width: 100%;
}

.form-file-input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.form-file-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4);
    border: 2px dashed var(--neutral-300);
    border-radius: var(--radius-md);
    background: var(--neutral-50);
    color: var(--neutral-600);
    cursor: pointer;
    transition: all var(--transition-base);
}

    .form-file-label:hover {
        border-color: var(--brand-primary);
        background: var(--brand-primary-lighter);
        color: var(--brand-primary);
    }

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */

@media (max-width: 768px) {
    .form-input,
    .form-select,
    .form-textarea {
        font-size: var(--text-sm);
    }

    .input-group {
        flex-direction: column;
    }

        .input-group .form-input,
        .input-group-text,
        .input-group button {
            border-radius: var(--radius-md) !important;
            border: 1.5px solid var(--neutral-300) !important;
        }
}