/* ===========================
   COMPONENTS
   BEM-formatted reusable components
   =========================== */

/* Button Component */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semi-bold);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    white-space: nowrap;
    min-height: 48px;
    outline: none;
}

.btn:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

/* Primary Button */
.btn--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

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

.btn--primary:hover {
    background-color: #0099CC;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

/* Secondary Button */
.btn--secondary {
    background-color: var(--color-secondary);
    color: var(--color-dark);
}

.btn--secondary:visited {
    color: var(--color-dark);
}

.btn--secondary:hover {
    background-color: #FF8800;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

/* Outline Button */
.btn--outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn--outline:visited {
    color: var(--color-primary);
}

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

/* Button Sizes */
.btn--sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn--lg {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    min-height: 56px;
}

/* Button Disabled */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Badge Component */
.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semi-bold);
    border-radius: 9999px;
    background-color: var(--color-light-bg);
    color: var(--color-dark);
}

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

.badge--secondary {
    background-color: var(--color-secondary);
    color: var(--color-dark);
}

/* Alert Component */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid;
    font-size: var(--font-size-base);
}

.alert--info {
    background-color: #DBEAFE;
    border-color: #3B82F6;
    color: #1E40AF;
}

.alert--success {
    background-color: #DCFCE7;
    border-color: #22C55E;
    color: #15803D;
}

.alert--warning {
    background-color: #FEF3C7;
    border-color: #F59E0B;
    color: #92400E;
}

.alert--error {
    background-color: #FEE2E2;
    border-color: #EF4444;
    color: #7F1D1D;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group__label {
    display: block;
    font-weight: var(--font-weight-semi-bold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
    font-size: var(--font-size-base);
}

.form-group__label--required::after {
    content: ' *';
    color: #EF4444;
}

.form-group__input,
.form-group__select,
.form-group__textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid #D1D5DB;
    border-radius: var(--border-radius);
    font-family: var(--font-family-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-dark);
    background-color: var(--color-white);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-group__input:focus,
.form-group__select:focus,
.form-group__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.1);
}

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

.form-group__help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-light-text);
}

.form-group__error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: #EF4444;
}

/* Card Component (Advanced) */
.card--primary {
    border-left-color: var(--color-primary);
}

.card--secondary {
    border-left-color: var(--color-secondary);
}

.card--highlight {
    border-top: 4px solid var(--color-secondary);
    background-color: #FFFBF0;
}

.card--highlight .btn {
    margin-top: var(--spacing-md);
}

/* Keep community cards readable when combined with .card--highlight */
.card.card--community {
    background-color: var(--color-white);
}

.card.card--community .card__title {
    color: var(--color-dark);
}

.card.card--community .card__description {
    color: var(--color-light-text);
}

/* Volunteer Form */
.volunteer__form-card {
    padding: var(--spacing-2xl);
}

.volunteer__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.volunteer__fieldset {
    border: 0;
    padding: 0;
    margin: 0;
}

.volunteer__fieldset .section__heading {
    text-align: left;
    margin-bottom: var(--spacing-md);
    font-size: 24px;
}

.volunteer__fieldset .form-group__label {
    margin-bottom: var(--spacing-sm);
}

.volunteer__checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.volunteer__checkbox input[type="checkbox"] {
    margin-top: 0.2rem;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.volunteer__fieldset .form-group__input,
.volunteer__fieldset .form-group__select,
.volunteer__fieldset .form-group__textarea {
    margin-bottom: var(--spacing-md);
}

@media (max-width: 767px) {
    .volunteer__form-card {
        padding: var(--spacing-lg);
    }
}

.card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-lg);
    background-color: var(--color-light-bg);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: 24px;
}

/* Hero CTA */
.hero__cta {
    display: inline-flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.hero__cta .btn {
    flex: 1;
    min-width: 150px;
}

/* Icon + Text Button */
.btn--with-icon {
    display: inline-flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.btn__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
}

/* Tag Component */
.tag {
    display: inline-block;
    padding: 4px 8px;
    background-color: var(--color-light-bg);
    color: var(--color-dark);
    border-radius: var(--border-radius);
    font-size: 12px;
    font-weight: var(--font-weight-semi-bold);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

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

.tag--secondary {
    background-color: var(--color-secondary);
    color: var(--color-dark);
}

/* Divider */
.divider {
    height: 1px;
    background-color: var(--color-light-bg);
    margin: var(--spacing-lg) 0;
    border: none;
}

/* Spacer Utilities */
.spacer--xs {
    margin: var(--spacing-xs) 0;
}

.spacer--sm {
    margin: var(--spacing-sm) 0;
}

.spacer--md {
    margin: var(--spacing-md) 0;
}

.spacer--lg {
    margin: var(--spacing-lg) 0;
}

.spacer--xl {
    margin: var(--spacing-xl) 0;
}

/* Visibility Utilities */
.hidden {
    display: none;
}

.visible {
    display: block;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    word-wrap: normal;
}