/* ============================================================
   Mobile / Responsive — Refined Editorial Tech
   Loaded LAST so its overrides win.
   Breakpoints:
     md: 900px (tablet/desktop split)
     sm: 640px (phone)
     xs: 420px (small phone)
   ============================================================ */

/* ============================================================
   Tablet & below (≤ 900px)
   ============================================================ */
@media (max-width: 900px) {

    /* Hide desktop nav, show hamburger */
    .appbar-primary,
    .appbar-actions { display: none !important; }
    .appbar-menu-btn { display: inline-flex; }

    /* App-shell padding shrinks */
    .appbar-nav,
    .page-main,
    .footer-inner {
        padding-left: 20px;
        padding-right: 20px;
    }

    /* Fat footer: 2 columns at tablet */
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px 32px; }
    .footer-col--brand { grid-column: 1 / -1; }

    /* Page intro */
    .page-intro {
        padding: 36px 0 24px;
        margin-bottom: 28px;
    }
    .page-intro__title {
        font-size: clamp(30px, 7vw, 44px);
    }
    .page-intro__subtitle {
        font-size: 14.5px;
    }

    /* Settings + Showcase: drop sidebar, single column */
    .settings-section,
    .show-section {
        grid-template-columns: 1fr;
        gap: 18px;
        padding: 28px 0;
    }
    .settings-section--isolated {
        margin-top: 24px;
        padding-top: 24px;
    }
    .show-section { padding: 36px 0; }
    .show-section__head { position: static; }
    .show-section__title { font-size: 28px; }

    /* KPI grid: 2 columns */
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .kpi { padding: 18px 16px; }
    .kpi__value { font-size: 34px; }

    /* Quick grid: 1 column */
    .quick-grid { grid-template-columns: 1fr; }

    /* Hero */
    .hero {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 48px 0 56px;
    }
    .hero::after {
        width: 360px; height: 360px;
        top: -120px; right: -80px;
    }
    .hero__title {
        font-size: clamp(40px, 9vw, 64px);
        max-width: none;
    }
    .hero__lede { font-size: 16px; }
    .hero__meta { max-width: 320px; }

    /* Features grid: 2 columns then 1 */
    .features { padding: 56px 0; }
    .features__grid { grid-template-columns: repeat(2, 1fr); }
    .feature { padding: 26px 22px 30px; }

    /* Showcase rows */
    .show-row { grid-template-columns: 1fr; gap: 12px; padding: 16px 18px; }
    .show-grid-2 { grid-template-columns: 1fr; }
    .type-row { grid-template-columns: 1fr; gap: 10px; }
    .type-stack { padding: 22px 20px; }

    /* Showcase TOC: smaller pill */
    .showcase-toc {
        top: 68px;
        padding: 6px 8px;
    }
    .showcase-toc a { padding: 5px 10px; font-size: 11.5px; }

    /* Cookie banner: full-width, stack */
    .cookie-banner {
        left: 12px; right: 12px; bottom: 12px;
        padding: 14px 16px;
    }
    .cookie-banner-inner { grid-template-columns: 1fr; gap: 12px; }
    .cookie-banner-actions {
        justify-content: stretch;
    }
    .cookie-banner-actions .aethon-btn {
        flex: 1 1 calc(50% - 4px);
    }

    /* Auth card padding */
    .auth-card { padding: 24px 20px; }

    /* Settings row: stack label + control */
    .settings-row { flex-direction: column; align-items: stretch; gap: 12px; }

    /* Action row wrap */
    .action-row { flex-wrap: wrap; }
    .action-row .aethon-btn { flex: 1 1 auto; }

    /* Tables: horizontal scroll if needed */
    .aethon-table-wrap { overflow-x: auto; }
    .aethon-table { min-width: 520px; }

    /* Modal — fill more of the viewport on small screens */
    .aethon-modal {
        max-width: calc(100vw - 24px) !important;
        max-height: calc(100vh - 32px);
    }
    .aethon-modal-backdrop { padding: 16px; }
    .aethon-modal-header { padding: 16px 18px 12px; }
    .aethon-modal-body { padding: 16px 18px; }

    /* Hero meta — make it a 2-column quick spec strip */
    .hero__meta {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1px;
    }

    /* Code-card body smaller */
    .code-card__body { font-size: 11.5px; padding: 14px; }
}

/* ============================================================
   Phone (≤ 640px)
   ============================================================ */
@media (max-width: 640px) {

    /* AppBar: tighter */
    .appbar { height: 56px; }
    .appbar-nav { gap: 2px; padding: 0 14px; }
    .appbar-brand { font-size: 17px; margin-right: 4px; }
    .appbar-link { padding: 6px 8px; font-size: 13px; }
    .appbar-link-brand { padding-left: 16px; }
    .appbar-link-brand::before { left: 6px; width: 5px; height: 5px; }

    /* Smaller buttons in AppBar */
    .appbar-nav .aethon-btn { padding: 6px 10px; font-size: 12.5px; min-height: 30px; }

    /* Page padding */
    .appbar-nav,
    .page-main,
    .footer-inner { padding-left: 16px; padding-right: 16px; }

    /* Page-intro */
    .page-intro { padding: 28px 0 20px; margin-bottom: 24px; }
    .page-intro__title { font-size: clamp(28px, 8vw, 40px); }
    .page-intro__eyebrow { font-size: 10.5px; }
    .page-intro__subtitle { font-size: 14px; }

    /* Hero */
    .hero { padding: 36px 0 48px; gap: 28px; }
    .hero__eyebrow { margin-bottom: 20px; }
    .hero__title { font-size: clamp(36px, 11vw, 56px); }
    .hero__lede { font-size: 15.5px; margin-bottom: 28px; }

    /* Section title */
    .section-title { font-size: 26px; margin-bottom: 28px; }

    /* Features: 1 column */
    .features { padding: 40px 0; }
    .features__grid { grid-template-columns: 1fr; }
    .feature { padding: 22px 18px 26px; }
    .feature__title { font-size: 19px; }

    /* KPI: 1 column */
    .kpi-grid { grid-template-columns: 1fr; margin-bottom: 32px; }

    /* Fat footer: 1 column at phone */
    .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
    .site-footer { padding: 48px 0 24px; margin-top: 80px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }

    /* Admin subnav: keep horizontal scroll, smaller */
    .admin-subnav { padding: 12px 0 18px; margin-bottom: 24px; gap: 2px; }
    .admin-subnav-link { padding: 5px 9px; font-size: 12.5px; }

    /* Auth card */
    .auth-card { padding: 22px 18px; border-radius: 12px; }
    .form-field input { font-size: 15px; }

    /* Form fields and inputs: prevent iOS zoom on focus */
    input, textarea, select, .aethon-input { font-size: 16px !important; }
    /* Override for visual only: the size you SEE stays, but min font is 16 */

    /* Showcase TOC */
    .showcase-toc {
        top: 62px;
        padding: 5px 6px;
        gap: 2px;
    }
    .showcase-toc a { padding: 4px 8px; font-size: 11px; }
    .show-section__title { font-size: 24px; }
    .show-section__num { font-size: 10px; }

    /* Type stack padding */
    .type-stack { padding: 18px 16px; }
    .type-row { padding-bottom: 16px; }
    .type-display { font-size: clamp(32px, 9vw, 52px); }
    .type-meta { font-size: 10px; }

    /* Color swatches: smaller chips */
    .swatch-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .swatch { padding: 10px; }
    .swatch__chip { aspect-ratio: 4/3; }

    /* Cards: tighter */
    .aethon-card[data-padded="true"],
    .aethon-card.padded { padding: 18px; }

    /* KPI tighter */
    .kpi__value { font-size: 32px; }

    /* Table: still scroll */
    .aethon-table thead th { padding: 10px 14px; font-size: 10px; }
    .aethon-table tbody td { padding: 12px 14px; font-size: 13px; }

    /* Code-card on mobile */
    .code-card__body { font-size: 11px; padding: 12px; }
    .code-card__head { font-size: 10.5px; }

    /* Modal */
    .aethon-modal {
        max-width: calc(100vw - 16px) !important;
        border-radius: 12px;
    }
    .aethon-modal-backdrop { padding: 8px; align-items: flex-end; }
    .aethon-modal {
        width: 100%;
    }

    /* Cookie banner: actions in 1 column */
    .cookie-banner-actions {
        flex-direction: column;
    }
    .cookie-banner-actions .aethon-btn {
        width: 100%;
    }

    /* Settings/Show sections: tighter */
    .settings-section { padding: 22px 0; }
    .settings-section__title { font-size: 19px; }
    .settings-section__desc { font-size: 13px; }

    /* Show row item gap */
    .show-row__items { gap: 8px; }

    /* Login redirect text */
    .auth-card form > div { gap: 14px !important; }
}

/* ============================================================
   Small phone (≤ 420px)
   ============================================================ */
@media (max-width: 420px) {
    .appbar-brand { font-size: 16px; }
    .hero__title { font-size: clamp(32px, 12vw, 48px); }
    .hero__eyebrow { font-size: 10.5px; letter-spacing: 0.14em; }
    .page-intro__title { font-size: clamp(26px, 9vw, 36px); }
    .features__grid,
    .swatch-grid { gap: 1px; }
    .swatch-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Touch-friendly hit targets
   ============================================================ */
@media (hover: none) and (pointer: coarse) {
    .aethon-btn { min-height: 40px; }
    .aethon-btn-sm { min-height: 36px; }
    .appbar-link,
    .admin-subnav-link,
    .showcase-toc a {
        padding-top: 9px;
        padding-bottom: 9px;
    }
    .check-row input[type="checkbox"] {
        width: 20px; height: 20px;
    }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto !important; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-delay: 0ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transition-delay: 0ms !important;
    }
    .page-main { animation: none; }
}