/* ============================================================================
   Header — sticky bar, dropdown nav, mobile drawer.
   Markup: app/views/partials/header.php
   ========================================================================== */

.header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: var(--c-white);
    border-bottom: 1px solid transparent;
    transition: box-shadow var(--dur) var(--ease),
                border-color var(--dur) var(--ease);
}
.header.is-scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.header__inner {
    display: flex;
    align-items: center;
    gap: var(--s-6);
    min-height: var(--header-h);
}

.header__logo { flex: none; color: var(--c-black); }
.header__logo__img { display: block; }
.header__logo__fallback {
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: 800;
    letter-spacing: var(--ls-tight);
}

.header__nav { margin-left: auto; }

.header__menu { display: flex; align-items: center; gap: var(--s-6); }

.header__item { position: relative; }

.header__link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--s-1);
    padding-block: calc((var(--header-h) - 20px) / 2);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--ink-700);
    transition: color var(--dur) var(--ease);
}
.header__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: calc((var(--header-h) - 20px) / 2 - 6px);
    width: 100%;
    height: 2px;
    background: var(--c-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur) var(--ease);
}
.header__link:hover,
.header__link.is-active { color: var(--c-black); }
.header__link:hover::after,
.header__link.is-active::after { transform: scaleX(1); }

.header__link .icon { transition: transform var(--dur) var(--ease); }
.header__item:hover .header__link .icon { transform: rotate(180deg); }

/* ---------------------------------------------------------------- dropdown */
.header__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    min-width: 280px;
    padding: var(--s-2);
    background: var(--c-white);
    border: 1px solid var(--border);
    border-top: 2px solid var(--c-gold);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 8px);
    transition: opacity var(--dur) var(--ease),
                transform var(--dur) var(--ease),
                visibility var(--dur) var(--ease);
}
.header__item:hover .header__dropdown,
.header__item:focus-within .header__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

.header__dropdown a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-4);
    padding: var(--s-3) var(--s-4);
    font-size: var(--fs-sm);
    color: var(--ink-700);
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.header__dropdown a .icon {
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.header__dropdown a:hover,
.header__dropdown a.is-active { background: var(--gold-50); color: var(--c-black); }
.header__dropdown a:hover .icon { opacity: 1; transform: none; color: var(--c-gold); }

.header__cta { flex: none; }

/* ---------------------------------------------------------- burger button */
.header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    margin-left: auto;
}
.header__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    margin-inline: auto;
    background: var(--c-black);
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.header__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.header__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------- mobile drawer */
.header__drawer {
    display: none;
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-block: var(--s-5) var(--s-8);
    background: var(--ink-900);
    z-index: var(--z-drawer);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.header__drawer.is-open { opacity: 1; transform: none; pointer-events: auto; }

.drawer__item { border-bottom: 1px solid var(--border-dark); }

.drawer__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--s-4) 0;
    font-family: var(--font-display);
    font-size: var(--fs-lg);
    font-weight: 600;
    text-align: left;
    color: var(--c-white);
}
.drawer__link:hover { color: var(--c-gold); }
.drawer__link .icon { transition: transform var(--dur) var(--ease); }
.drawer__link[aria-expanded="true"] { color: var(--c-gold); }
.drawer__link[aria-expanded="true"] .icon { transform: rotate(180deg); }

/* Submenu height animates via grid-template-rows, so it works without
   measuring the content in JavaScript. The wrapper must hold exactly ONE
   child — 0fr sizes only the first row, so a multi-item list directly inside
   would never collapse. */
.drawer__sub {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--dur) var(--ease);
}
.drawer__sublist { overflow: hidden; }
.drawer__link[aria-expanded="true"] + .drawer__sub { grid-template-rows: 1fr; }

.drawer__sublist a {
    display: block;
    padding: var(--s-3) 0 var(--s-3) var(--s-4);
    font-size: var(--fs-sm);
    color: var(--ink-300);
    border-left: 2px solid var(--border-dark);
}
.drawer__sublist a:hover { color: var(--c-white); border-left-color: var(--c-gold); }
.drawer__sublist > li:last-child a { margin-bottom: var(--s-4); }

.drawer__cta { margin-top: var(--s-6); }

.drawer__contact {
    display: grid;
    gap: var(--s-3);
    margin-top: var(--s-6);
    padding-top: var(--s-5);
    border-top: 1px solid var(--border-dark);
}
.drawer__contact a {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    font-size: var(--fs-sm);
    color: var(--ink-300);
}
.drawer__contact a:hover { color: var(--c-white); }
.drawer__contact .icon { color: var(--c-gold); flex: none; }

@media (max-width: 1099px) {
    .header__nav,
    .header__cta    { display: none; }
    .header__toggle { display: flex; }
    .header__drawer { display: block; }
}

@media (max-width: 767px) {
    /* Drawer contact links were 23px tall — below a comfortable tap target. */
    .drawer__contact a { padding-block: var(--s-3); }
}