/* =====================================================================
   ambulance/assets/css/layout.css
   Page shells: public navbar/footer, admin sidebar/header, driver shell.
   ===================================================================== */

.amb-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-20);
}

/* Public navigation -------------------------------------------------- */
.amb-navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--color-bg-surface) 92%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-soft);
}
.amb-navbar__inner {
    display: flex;
    align-items: center;
    gap: var(--space-16);
    min-height: 68px;
}
.amb-navbar__brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-12);
    color: var(--color-text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
}
.amb-navbar__logo {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-8);
    object-fit: cover;
}
.amb-navbar__logo--fallback {
    display: grid;
    place-items: center;
    background: var(--brand);
    color: var(--brand-contrast);
    font-size: 17px;
}
.amb-navbar__name { max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.amb-navbar__links {
    display: flex;
    align-items: center;
    gap: var(--space-20);
    margin-left: var(--space-16);
}
.amb-navbar__links a {
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
}
.amb-navbar__links a:hover { color: var(--color-link); }
.amb-navbar__actions {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    margin-left: auto;
}
.amb-navbar__burger {
    display: none;
    border: 1px solid var(--color-border);
    background: var(--color-bg-surface);
    border-radius: var(--radius-8);
    min-width: var(--touch-target);
    min-height: var(--touch-target);
    cursor: pointer;
    color: var(--color-text-primary);
}

/* Mobile drawer ------------------------------------------------------ */
.amb-drawer { position: fixed; inset: 0; z-index: 100; }
.amb-drawer__backdrop { position: absolute; inset: 0; background: rgba(11, 22, 32, 0.5); }
.amb-drawer__panel {
    position: absolute;
    inset: 0 0 0 auto;
    width: min(340px, 86vw);
    background: var(--color-bg-surface);
    border-left: 1px solid var(--color-border-soft);
    display: flex;
    flex-direction: column;
    padding: var(--space-20);
    gap: var(--space-16);
}
.amb-drawer__head { display: flex; align-items: center; justify-content: space-between; }
.amb-drawer__brand { font-family: var(--font-heading); font-weight: 700; }
.amb-drawer__close {
    border: 0; background: none; cursor: pointer;
    min-width: 36px; min-height: 36px; border-radius: var(--radius-8);
    color: var(--color-text-secondary);
}
.amb-drawer__links { display: flex; flex-direction: column; gap: var(--space-4); }
.amb-drawer__links a {
    display: flex; align-items: center; gap: var(--space-12);
    min-height: var(--touch-target);
    padding: 0 var(--space-12);
    border-radius: var(--radius-8);
    color: var(--color-text-primary);
}
.amb-drawer__links a:hover { background: var(--color-bg-subtle); }
.amb-drawer__links i { width: 20px; text-align: center; color: var(--color-link); }
.amb-drawer__cta { margin-top: auto; }
.amb-drawer__foot { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--color-border-soft); padding-top: var(--space-12); }

/* Public footer ------------------------------------------------------ */
.amb-footer {
    margin-top: var(--space-64);
    border-top: 1px solid var(--color-border-soft);
    background: var(--color-bg-surface);
}
.amb-footer__inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: var(--space-32);
    padding-top: var(--space-40);
    padding-bottom: var(--space-24);
}
.amb-footer__name {
    display: flex; align-items: center; gap: var(--space-12);
    font-family: var(--font-heading); font-weight: 700; font-size: var(--font-size-h4);
}
.amb-footer__logo { width: 34px; height: 34px; border-radius: var(--radius-8); object-fit: cover; }
.amb-footer__line { color: var(--color-text-secondary); font-size: 14px; margin-bottom: var(--space-8); }
.amb-footer__line--strong { color: var(--color-text-primary); }
.amb-footer__links { display: flex; flex-direction: column; gap: var(--space-8); align-items: flex-start; }
.amb-footer__links a { color: var(--color-text-secondary); font-size: 14px; }
.amb-footer__links a:hover { color: var(--color-link); }
.amb-footer__copy {
    grid-column: 1 / -1;
    margin: 0;
    padding-top: var(--space-16);
    border-top: 1px solid var(--color-border-soft);
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
}

/* Public page shell -------------------------------------------------- */
.amb-public { min-height: 100vh; display: flex; flex-direction: column; }
.amb-public main { flex: 1 1 auto; }
.amb-section { padding: var(--space-48) 0; }
.amb-section--tint { background: var(--color-primary-50); }
.amb-hero {
    background: var(--gradient-hero);
    color: var(--color-on-dark);
    padding: var(--space-64) 0;
}
.amb-hero h1, .amb-hero h2, .amb-hero h3, .amb-hero p { color: inherit; }
.amb-hero a:not(.amb-btn) { color: inherit; text-decoration: underline; }
.amb-hero a:not(.amb-btn):hover { color: var(--color-on-dark-muted); }

/* Buttons on the hero: the gradient is dark in light AND dark mode, so the
   buttons use fixed on-dark colours instead of theme-flipping tokens. */
.amb-hero .amb-btn.amb-btn--primary,
[data-theme="dark"] .amb-hero .amb-btn.amb-btn--primary {
    background: #FFFFFF;
    border-color: #FFFFFF;
    color: var(--color-primary-900);
    box-shadow: none;
}
.amb-hero .amb-btn.amb-btn--primary:hover:not(:disabled) {
    background: var(--color-primary-100);
    border-color: var(--color-primary-100);
    color: var(--color-primary-900);
}
.amb-hero .amb-btn.amb-btn--ghost {
    background: transparent;
    border-color: var(--color-on-dark-border);
    color: var(--color-on-dark);
}
.amb-hero .amb-btn.amb-btn--ghost:hover:not(:disabled) {
    background: var(--color-on-dark-hover);
    border-color: var(--color-on-dark);
    color: var(--color-on-dark);
}
.amb-hero .amb-btn:focus-visible {
    outline: 2px solid #FFFFFF;
    outline-offset: 3px;
    box-shadow: none;
}
.amb-hero__inner { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--space-40); align-items: center; }
.amb-hero__notice {
    display: flex; align-items: flex-start; gap: var(--space-12);
    padding: var(--space-12) var(--space-16);
    border-radius: var(--radius-12);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.28);
    color: var(--color-on-dark);
    font-size: 14px;
}
.amb-hero__actions { display: flex; gap: var(--space-12); flex-wrap: wrap; margin-top: var(--space-24); }
.amb-section__head { max-width: 640px; margin-bottom: var(--space-24); }
.amb-placeholder {
    display: grid; place-items: center;
    min-height: 180px;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-12);
    background: var(--color-bg-surface);
    color: var(--color-text-secondary);
}

/* Admin app shell ---------------------------------------------------- */
.amb-app { min-height: 100vh; display: grid; grid-template-columns: 248px 1fr; background: var(--color-bg-app); }
.amb-sidebar {
    background: var(--gradient-sidebar);
    color: var(--color-on-dark-muted);
    padding: var(--space-20) var(--space-12);
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.amb-sidebar__brand {
    display: flex; align-items: center; gap: var(--space-12);
    padding: 0 var(--space-8) var(--space-16);
    color: #FFFFFF;
    font-family: var(--font-heading); font-weight: 700;
}
.amb-sidebar__logo { width: 36px; height: 36px; border-radius: var(--radius-8); object-fit: cover; }
.amb-sidebar__link {
    display: flex; align-items: center; gap: var(--space-12);
    min-height: 42px;
    padding: 0 var(--space-12);
    border-radius: var(--radius-8);
    color: #C9D6DE;
    font-size: 14px;
}
.amb-sidebar__link i { width: 20px; text-align: center; }
.amb-sidebar__link:hover { background: var(--color-primary-700); color: #FFFFFF; }
.amb-sidebar__link.is-active { background: var(--color-primary-600); color: #FFFFFF; }
.amb-sidebar__badge {
    margin-left: auto;
    min-width: 20px;
    padding: 1px 6px;
    border-radius: var(--radius-pill);
    background: var(--color-warning-500);
    color: #FFFFFF;
    font-size: 11px;
    text-align: center;
}
.amb-sidebar__section { margin-top: var(--space-16); padding: 0 var(--space-12); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: #8FA7B5; }

.amb-main { min-width: 0; display: flex; flex-direction: column; }
.amb-header {
    position: sticky; top: 0; z-index: 40;
    display: flex; align-items: center; gap: var(--space-12);
    min-height: 64px;
    padding: 0 var(--space-24);
    background: var(--color-bg-surface);
    border-bottom: 1px solid var(--color-border-soft);
}
.amb-header__title { font-family: var(--font-heading); font-size: var(--font-size-h4); font-weight: 600; }
.amb-header__actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-8); }
.amb-content { padding: var(--space-24); }

/* Driver shell ------------------------------------------------------- */
.amb-driver-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: 76px;
}
.amb-driver-header {
    position: sticky; top: 0; z-index: 40;
    display: flex; align-items: center; gap: var(--space-12);
    min-height: 60px;
    padding: 0 var(--space-16);
    background: var(--color-primary-800);
    color: var(--color-on-dark);
}
.amb-driver-header a, .amb-driver-header .amb-link-btn { color: inherit; }
.amb-driver-banner {
    display: flex; align-items: center; gap: var(--space-12);
    padding: var(--space-12) var(--space-16);
    background: var(--color-warning-100);
    color: var(--color-warning-text);
    border-bottom: 1px solid var(--color-warning-500);
    font-size: 14px;
}
.amb-bottom-nav {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    background: var(--color-bg-surface);
    border-top: 1px solid var(--color-border-soft);
    padding-bottom: env(safe-area-inset-bottom);
}
.amb-bottom-nav a {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 4px;
    min-height: 64px;
    color: var(--color-text-secondary);
    font-size: 11px;
}
.amb-bottom-nav a i { font-size: 18px; }
.amb-bottom-nav a.is-active { color: var(--color-link); font-weight: 600; }

/* Auth shell --------------------------------------------------------- */
.amb-auth {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: var(--space-24);
    background:
        radial-gradient(900px 500px at 15% 0%, var(--color-primary-100), transparent 60%),
        var(--color-bg-app);
}
.amb-auth__card {
    width: min(440px, 100%);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-16);
    box-shadow: var(--shadow-2);
    padding: var(--space-32);
}
.amb-auth__brand { display: flex; align-items: center; gap: var(--space-12); margin-bottom: var(--space-24); }
.amb-auth__logo { width: 42px; height: 42px; border-radius: var(--radius-8); object-fit: cover; }

@media (max-width: 960px) {
    .amb-app { grid-template-columns: 1fr; }
    .amb-sidebar { display: none; }
    .amb-hero__inner { grid-template-columns: 1fr; }
    .amb-footer__inner { grid-template-columns: 1fr; }
    .amb-navbar__links, .amb-navbar__actions .amb-btn { display: none; }
    .amb-navbar__burger { display: inline-flex; align-items: center; justify-content: center; }
}

/* Admin shell extras (Phase 12) -------------------------------------- */
.amb-sidebar__logo--fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-600);
    color: #FFFFFF;
}
.amb-sidebar__brand-name { font-size: 15px; }
.amb-sidebar__nav { display: flex; flex-direction: column; gap: 4px; }

.amb-header__burger {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: var(--radius-8);
    background: transparent;
    color: inherit;
    cursor: pointer;
}
.amb-header__burger:hover { background: var(--color-bg-subtle); }

.amb-user { position: relative; }
.amb-user__button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-8);
    padding: 4px 8px;
    border: 0;
    border-radius: var(--radius-8);
    background: transparent;
    color: inherit;
    cursor: pointer;
}
.amb-user__button:hover { background: var(--color-bg-subtle); }
.amb-user__avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary-100);
    color: var(--color-primary-text);
    font-size: 13px;
    font-weight: 600;
}
.amb-user__meta { display: flex; flex-direction: column; line-height: 1.2; text-align: left; }
.amb-user__name { font-size: 13px; font-weight: 600; }
.amb-user__role { font-size: 11px; color: var(--color-text-secondary); }

.amb-user__menu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    z-index: 60;
    min-width: 220px;
    padding: 8px;
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-12);
    box-shadow: var(--shadow-2);
}
.amb-user__menu-head {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 10px 10px;
    margin-bottom: 6px;
    border-bottom: 1px solid var(--color-border-soft);
}
.amb-user__item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-radius: var(--radius-8);
    background: transparent;
    color: var(--color-text-primary);
    font-size: 14px;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}
.amb-user__item:hover { background: var(--color-bg-subtle); }
.amb-user__item--danger { color: var(--color-error-text); }
.amb-user__item i { width: 18px; text-align: center; }

.amb-sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 65;
    background: rgba(10, 20, 30, 0.5);
}
.amb-sidebar-backdrop[hidden] { display: none; }

.amb-bottom-nav--admin { display: none; }
body.amb-nav-open { overflow: hidden; }

@media (max-width: 960px) {
    .amb-header__burger { display: inline-flex; }
    .amb-sidebar.is-open {
        display: flex;
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        z-index: 70;
        width: 260px;
        height: 100vh;
    }
    .amb-bottom-nav--admin { display: grid; }
    .amb-app .amb-content { padding-bottom: calc(80px + env(safe-area-inset-bottom)); }
    .amb-user__meta { display: none; }
}

.amb-faq { display: grid; gap: var(--space-12); max-width: 760px; }
.amb-faq__item { border: 1px solid var(--color-border-soft); border-radius: var(--radius-md); padding: var(--space-16); }
.amb-faq__item summary { cursor: pointer; font-weight: 600; color: var(--color-text-primary); }
.amb-faq__item p { margin: var(--space-8) 0 0; color: var(--color-text-secondary); }