/* =========================================================================
   Formasync — Components
   Header, footer, buttons, cards, forms — used across every page.
   ========================================================================= */

/* -------------------------------------------------------------------------
   Site header / navigation
   ------------------------------------------------------------------------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-overlay);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--border-subtle);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    padding-block: var(--space-4);
}

.site-header__brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.site-header__brand img {
    height: 2.25rem;
    width: auto;
}

/* Mobile nav toggle (CSS-only checkbox pattern) */
.nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
    cursor: pointer;
    width: 2.5rem;
    height: 2.5rem;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.nav-toggle-label:hover {
    background: var(--border-subtle);
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-base),
                opacity var(--transition-base);
}

.nav-toggle-label span {
    position: relative;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
    content: '';
    position: absolute;
    left: 0;
}

.nav-toggle-label span::before { top: -7px; }
.nav-toggle-label span::after  { top:  7px; }

.site-nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.site-nav__list a {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: var(--radius-pill);
    transition: color var(--transition-fast),
                background var(--transition-fast);
}

.site-nav__list a:hover,
.site-nav__list a:focus-visible {
    color: var(--text-primary);
    background: var(--border-subtle);
    outline: none;
}

@media (max-width: 768px) {
    .nav-toggle-label {
        display: flex;
    }

    .site-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-overlay);
        backdrop-filter: saturate(160%) blur(14px);
        -webkit-backdrop-filter: saturate(160%) blur(14px);
        border-bottom: 1px solid var(--border-subtle);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }

    .site-nav__list {
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-4) var(--container-pad);
        gap: var(--space-1);
    }

    .site-nav__list a {
        display: block;
        padding: var(--space-4);
        text-align: left;
    }

    .nav-toggle:checked ~ .site-nav {
        max-height: 24rem;
    }

    .nav-toggle:checked ~ .nav-toggle-label span {
        background: transparent;
    }

    .nav-toggle:checked ~ .nav-toggle-label span::before {
        top: 0;
        transform: rotate(45deg);
    }

    .nav-toggle:checked ~ .nav-toggle-label span::after {
        top: 0;
        transform: rotate(-45deg);
    }
}

/* -------------------------------------------------------------------------
   Site footer
   ------------------------------------------------------------------------- */

.site-footer {
    margin-top: var(--space-9);
    background: linear-gradient(180deg,
        transparent,
        rgba(43, 56, 134, 0.20));
    border-top: 1px solid var(--border-subtle);
}

.site-footer__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    padding-block: var(--space-7);
}

.site-footer__copy {
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.site-footer__nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-5);
}

.site-footer__nav a {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
}

.site-footer__nav a:hover {
    color: var(--text-primary);
}

@media (max-width: 600px) {
    .site-footer__inner {
        flex-direction: column;
        text-align: center;
    }
}

/* -------------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-pill);
    border: 1.5px solid transparent;
    transition: background var(--transition-base),
                color var(--transition-base),
                border-color var(--transition-base),
                transform var(--transition-fast),
                box-shadow var(--transition-base);
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-1px);
}

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

.btn--primary {
    background: var(--brand-purple);
    color: var(--text-on-purple);
    border-color: var(--brand-purple);
    box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
    background: var(--brand-purple-light);
    border-color: var(--brand-purple-light);
    color: var(--text-on-purple);
}

.btn--ghost {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.btn--ghost:hover {
    background: var(--border-subtle);
    border-color: var(--brand-purple-light);
    color: var(--text-primary);
}

.btn[disabled],
.btn[disabled]:hover {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* -------------------------------------------------------------------------
   Cards
   ------------------------------------------------------------------------- */

.card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: border-color var(--transition-base),
                transform var(--transition-base),
                box-shadow var(--transition-base);
}

.card:hover {
    border-color: var(--brand-purple-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* -------------------------------------------------------------------------
   Forms
   ------------------------------------------------------------------------- */

.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}

.form-field label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: border-color var(--transition-fast),
                background var(--transition-fast);
}

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

.form-field input:hover,
.form-field textarea:hover {
    border-color: var(--border-strong);
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--brand-purple-light);
    background: rgba(255, 255, 255, 0.06);
}

.form-field textarea {
    resize: vertical;
    min-height: 8rem;
    line-height: 1.5;
}

.form-status {
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    display: none;
}

.form-status[data-state="success"] {
    display: block;
    background: rgba(64, 192, 128, 0.12);
    border: 1px solid rgba(64, 192, 128, 0.40);
    color: #8FE3B8;
}

.form-status[data-state="error"] {
    display: block;
    background: rgba(220, 80, 100, 0.12);
    border: 1px solid rgba(220, 80, 100, 0.40);
    color: #F5A0AE;
}