/*
 * ============================================================================
 * MFKA Components — Sustainable Governance Hub
 * ============================================================================
 * Reusable building blocks: button, form-field, card, alert, badge, etc.
 * All built on tokens from tokens.css.
 * ============================================================================
 */

/* ============================================================================
 * BUTTONS
 * ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);

    padding: var(--space-3) var(--space-6);
    min-height: 48px;               /* WCAG 2.1 AA target size */
    border-radius: var(--radius-md);

    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1;
    letter-spacing: var(--tracking-wide);

    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    cursor: pointer;

    transition:
        background-color var(--duration-base) var(--ease-out),
        color var(--duration-base) var(--ease-out),
        border-color var(--duration-base) var(--ease-out),
        transform var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-base) var(--ease-out);
}

.btn:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus);
}

.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary — the main call to action */
.btn-primary {
    background-color: var(--mfka-green-600);
    color: var(--mfka-cream);
    border: 2px solid var(--mfka-green-600);
}

.btn-primary:hover {
    background-color: var(--mfka-green-700);
    border-color: var(--mfka-green-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Secondary — quieter, outline-style */
.btn-secondary {
    background-color: transparent;
    color: var(--mfka-green-700);
    border: 2px solid var(--mfka-green-600);
}

.btn-secondary:hover {
    background-color: var(--mfka-green-50);
    color: var(--mfka-green-800);
    transform: translateY(-1px);
}

/* Gold — emphasis, alternative to primary */
.btn-gold {
    background-color: var(--mfka-gold-400);
    color: var(--mfka-ink-900);
    border: 2px solid var(--mfka-gold-400);
}

.btn-gold:hover {
    background-color: var(--mfka-gold-500);
    border-color: var(--mfka-gold-500);
    color: var(--mfka-cream);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Ghost — minimal */
.btn-ghost {
    background-color: transparent;
    color: var(--mfka-green-700);
    border: 2px solid transparent;
}

.btn-ghost:hover {
    background-color: var(--mfka-green-50);
}

/* Size variants */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    min-height: 36px;
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-7);
    min-height: 56px;
    font-size: var(--text-lg);
}

/* Block (full-width) */
.btn-block {
    display: flex;
    width: 100%;
}

/* ============================================================================
 * FORM FIELDS
 * ========================================================================== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group + .form-group {
    margin-top: var(--space-5);
}

.form-label {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    color: var(--mfka-ink-700);
}

.form-label--required::after {
    content: " *";
    color: var(--mfka-error);
    font-weight: 700;
}

.form-help {
    font-size: var(--text-sm);
    color: var(--mfka-ink-500);
    line-height: var(--leading-normal);
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background-color: var(--mfka-cream);
    border: 2px solid var(--mfka-ink-200);
    border-radius: var(--radius-md);

    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--mfka-ink-700);

    transition:
        border-color var(--duration-base) var(--ease-out),
        box-shadow var(--duration-base) var(--ease-out),
        background-color var(--duration-base) var(--ease-out);
}

.form-control::placeholder {
    color: var(--mfka-ink-400);
}

.form-control:hover {
    border-color: var(--mfka-ink-300);
}

.form-control:focus {
    outline: none;
    border-color: var(--mfka-green-500);
    box-shadow: var(--shadow-focus);
    background-color: #FFFFFF;
}

.form-control:disabled {
    background-color: var(--mfka-bone);
    color: var(--mfka-ink-500);
    cursor: not-allowed;
}

/* Textarea-specific */
textarea.form-control {
    min-height: 7rem;
    resize: vertical;
}

/* Field error state */
.form-control.is-invalid,
.form-control[aria-invalid="true"] {
    border-color: var(--mfka-error);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(178, 58, 46, 0.2);
}

.form-error {
    font-size: var(--text-sm);
    color: var(--mfka-error);
    font-weight: 500;
}

/* Field success state */
.form-control.is-valid {
    border-color: var(--mfka-success);
}

/* Checkbox + radio */
.form-check {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
    padding: var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--duration-fast) var(--ease-out);
}

.form-check:hover {
    background-color: var(--mfka-paper);
}

.form-check-input {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.2rem;
    accent-color: var(--mfka-green-600);
    cursor: pointer;
}

.form-check-label {
    flex: 1;
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    cursor: pointer;
    user-select: none;
}

.form-check-required::after {
    content: " *";
    color: var(--mfka-error);
    font-weight: 700;
}

/* ============================================================================
 * CARDS
 * ========================================================================== */
.card {
    background-color: var(--mfka-paper);
    border: 1px solid var(--mfka-ink-200);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition:
        border-color var(--duration-base) var(--ease-out),
        box-shadow var(--duration-base) var(--ease-out),
        transform var(--duration-base) var(--ease-out);
}

.card--interactive:hover {
    border-color: var(--mfka-green-300);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card--green {
    background-color: var(--mfka-green-700);
    color: var(--mfka-cream);
    border-color: var(--mfka-green-700);
}

.card--green h2, .card--green h3 {
    color: var(--mfka-cream);
}

.card-title {
    margin-bottom: var(--space-3);
}

.card-footer {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--mfka-ink-200);
}

/* ============================================================================
 * ALERT / NOTIFICATION
 * ========================================================================== */
.alert {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    background-color: var(--mfka-paper);
}

.alert-icon {
    flex-shrink: 0;
    width: 1.5rem;
    height: 1.5rem;
    margin-top: 0.1rem;
}

.alert-body {
    flex: 1;
}

.alert-title {
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.alert--success {
    background-color: var(--mfka-success-bg);
    border-color: var(--mfka-success);
    color: var(--mfka-green-900);
}

.alert--warning {
    background-color: var(--mfka-warning-bg);
    border-color: var(--mfka-warning);
    color: #6B4400;
}

.alert--error {
    background-color: var(--mfka-error-bg);
    border-color: var(--mfka-error);
    color: #6A1F18;
}

.alert--info {
    background-color: var(--mfka-info-bg);
    border-color: var(--mfka-info);
    color: #1A4651;
}

/* ============================================================================
 * BADGE
 * ========================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
}

.badge--green {
    background-color: var(--mfka-green-100);
    color: var(--mfka-green-800);
}

.badge--gold {
    background-color: var(--mfka-gold-100);
    color: var(--mfka-gold-700);
}

.badge--neutral {
    background-color: var(--mfka-bone);
    color: var(--mfka-ink-700);
}

/* ============================================================================
 * MARK — emphasized text (e.g. brand line highlight)
 * ========================================================================== */
.mfka-highlight {
    background:
        linear-gradient(
            to top,
            var(--mfka-gold-200) 0%,
            var(--mfka-gold-200) 35%,
            transparent 35%,
            transparent 100%
        );
    padding: 0 0.1em;
}

/* ============================================================================
 * LOADING / SPINNER — uses the circular motif from the logo
 * ========================================================================== */
.spinner {
    display: inline-block;
    width: 1.25em;
    height: 1.25em;
    border-radius: 50%;
    border: 2px solid var(--mfka-gold-200);
    border-top-color: var(--mfka-green-600);
    animation: spinner-rotate 1s var(--ease-in-out) infinite;
}

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

/* ============================================================================
 * NAVIGATION
 * ========================================================================== */
.site-header {
    background-color: var(--mfka-cream);
    border-bottom: 1px solid var(--mfka-ink-200);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(8px);
    background-color: rgba(251, 249, 243, 0.92);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    padding-block: var(--space-3);
    min-height: 72px;
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: inherit;
}

.site-logo:focus-visible {
    outline: 2px solid var(--mfka-gold-400);
    outline-offset: 4px;
    border-radius: var(--radius-md);
}

.site-logo-mark {
    height: 52px;
    width: 52px;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .site-logo-mark {
        height: 60px;
        width: 60px;
    }
}

.site-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    gap: 1px;
}

/* Top line: organizational name — small, structural, all-caps */
.site-logo-text-org {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    color: var(--mfka-green-600);
}

/* Bottom line: project name — display serif, headline weight */
.site-logo-text-project {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--mfka-ink-900);
    letter-spacing: var(--tracking-tight);
}

@media (min-width: 768px) {
    .site-logo-text-project {
        font-size: var(--text-xl);
    }
}

/* Hide wordmark on very narrow screens — keep only the mark */
@media (max-width: 479px) {
    .site-logo-text {
        display: none;
    }
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.site-nav a {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--mfka-ink-600);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) var(--ease-out);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
    color: var(--mfka-green-700);
    background-color: var(--mfka-green-50);
}

.site-nav a:focus-visible {
    outline: 2px solid var(--mfka-gold-400);
    outline-offset: 2px;
}

/* ----------------------------------------------------------------------------
 * SPECIFICITY OVERRIDES — buttons inside contexts that target raw `a` styles
 *
 * .site-nav a and .section--green a target unclassed anchors with their own
 * color rules. When a button (.btn-primary, .btn-gold) lives inside those
 * contexts, the contextual rule wins on equal specificity. Restore button
 * intent with explicit overrides.
 * --------------------------------------------------------------------------*/

/* Primary CTA inside the top navigation */
.site-nav a.btn-primary {
    color: var(--mfka-cream);
    background-color: var(--mfka-green-600);
}

.site-nav a.btn-primary:hover,
.site-nav a.btn-primary:focus-visible {
    color: var(--mfka-cream);
    background-color: var(--mfka-green-700);
}

/* Gold CTA inside the green section (final call-to-action) */
.section--green a.btn-gold {
    color: var(--mfka-ink-900);
    background-color: var(--mfka-gold-400);
    text-decoration: none;
}

.section--green a.btn-gold:hover,
.section--green a.btn-gold:focus-visible {
    color: var(--mfka-cream);
    background-color: var(--mfka-gold-500);
}

/* Mobile-only nav toggle */
.nav-toggle {
    display: none;
}

@media (max-width: 767px) {
    .nav-toggle {
        display: inline-flex;
        padding: var(--space-2);
        border-radius: var(--radius-md);
    }

    .site-nav {
        display: none;
    }

    .site-nav.is-open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        position: absolute;
        inset-inline: var(--space-4);
        top: 80px;
        padding: var(--space-3);
        background-color: var(--mfka-cream);
        border: 1px solid var(--mfka-ink-200);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
    }
}

/* ============================================================================
 * FOOTER
 * ========================================================================== */
.site-footer {
    background-color: var(--mfka-green-800);
    color: var(--mfka-cream);
    padding-block: var(--space-8) var(--space-5);
    margin-top: var(--space-9);
}

.site-footer h3 {
    color: var(--mfka-cream);
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
    letter-spacing: var(--tracking-wide);
}

.site-footer a {
    color: var(--mfka-gold-200);
    text-decoration: none;
    line-height: 2;
    transition: color var(--duration-fast) var(--ease-out);
}

.site-footer a:hover,
.site-footer a:focus-visible {
    color: var(--mfka-cream);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.site-footer-grid {
    display: grid;
    gap: var(--space-6);
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
}

@media (max-width: 767px) {
    .site-footer-grid {
        grid-template-columns: 1fr;
    }
}

.site-footer-bottom {
    margin-top: var(--space-7);
    padding-top: var(--space-5);
    border-top: 1px solid var(--mfka-green-700);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--mfka-gold-200);
}