/* ============================================================
   MyTabs: Ayiaware sub-brand foundation
   Dark editorial theme, Inter + Manrope, green accent #b1d18a.
   See REBRAND_SPEC.md for the design system.
   ============================================================ */

:root {
    --bg-deep: #0d0d0d;
    --bg-light: #1a1a1a;
    --bg-shadow: #080808;

    --color-bg: var(--bg-light);
    --color-bg-hero: var(--bg-deep);
    --color-bg-section: var(--bg-light);
    --color-bg-card: #191919;
    --color-bg-footer: var(--bg-light);

    --color-accent: #b1d18a;

    --color-text: #e5e5e5;
    --color-text-muted: rgba(229, 229, 229, 0.6);
    --color-border: rgba(229, 229, 229, 0.1);

    --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: "Manrope", "Inter", sans-serif;

    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-black: 800;

    --motion-fast: 0.3s ease;
    --motion-base: 0.5s ease;
    --motion-slow: 1s ease;
}

/* Reset */
*,
*::before,
*::after {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-weight: var(--fw-regular);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Site-wide film grain (white noise, screen blend, low opacity) */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.06;
    mix-blend-mode: screen;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 300 300' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 200px 200px;
}

/* Skip-link for keyboard users */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 10000;
    padding: 12px 20px;
    background: var(--color-accent);
    color: var(--bg-deep);
    font-weight: var(--fw-semibold);
}

.skip-link:focus {
    left: 12px;
    top: 12px;
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    html {
        scroll-behavior: auto;
    }
}

/* ============================================================
   Layout primitives
   ============================================================ */

.section-inner,
.hero-inner,
.header-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

@media (max-width: 768px) {
    .section-inner,
    .hero-inner,
    .header-inner {
        padding: 0 20px;
    }
}

.eyebrow {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: var(--fw-semibold);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.display-h1,
.display-h2 {
    font-family: var(--font-display);
    font-weight: var(--fw-black);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.display-h1 {
    font-size: clamp(2.25rem, 5vw + 1rem, 4rem);
    margin-bottom: 20px;
}

.display-h2 {
    font-size: clamp(1.75rem, 3vw + 1rem, 2.75rem);
    margin-bottom: 16px;
}

.lede {
    font-family: var(--font-sans);
    font-size: clamp(1rem, 0.5vw + 0.9rem, 1.125rem);
    color: var(--color-text-muted);
    max-width: 60ch;
    margin-bottom: 32px;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: var(--fw-semibold);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 6px;
    border: 1px solid transparent;
    transition: background var(--motion-fast), color var(--motion-fast),
        border-color var(--motion-fast), transform var(--motion-fast);
    cursor: pointer;
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-outline:hover,
.btn-outline:focus-visible {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ============================================================
   Header / nav
   ============================================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 13, 13, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
    font-family: var(--font-display);
    font-weight: var(--fw-bold);
    letter-spacing: 0.02em;
    transition: color var(--motion-fast);
}

.logo img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo span {
    font-size: 18px;
}

.logo:hover {
    color: var(--color-accent);
}

.nav-desktop {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-desktop a {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: var(--fw-medium);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text);
    opacity: 0.7;
    transition: color var(--motion-fast), opacity var(--motion-fast);
}

.nav-desktop a:hover,
.nav-desktop a:focus-visible {
    color: var(--color-accent);
    opacity: 1;
}

.nav-desktop a.btn {
    opacity: 1;
}

/* Hamburger button (mobile only) */
.menubar {
    display: none;
    background: transparent;
    border: 0;
    padding: 8px;
    cursor: pointer;
    width: 44px;
    height: 44px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.menubar:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: 4px;
}

.menubar span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--motion-fast), opacity var(--motion-fast);
}

.menubar[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menubar[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.menubar[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.nav-mobile {
    display: none;
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

.nav-mobile a {
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: var(--fw-medium);
    color: var(--color-text);
    padding: 8px 0;
}

.nav-mobile a:hover,
.nav-mobile a:focus-visible {
    color: var(--color-accent);
}

.nav-mobile.is-open {
    display: flex;
}

@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    .menubar {
        display: flex;
    }
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
    background: var(--color-bg-hero);
    padding: 96px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-copy {
    max-width: 560px;
}

.cta-playstore {
    display: inline-block;
    transition: transform var(--motion-fast);
}

.cta-playstore img {
    width: 220px;
    max-width: 100%;
}

.cta-playstore:hover,
.cta-playstore:focus-visible {
    transform: translateY(-2px);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 360px;
}

.phone-mockup .phone-frame {
    width: 100%;
    height: auto;
}

.phone-mockup .phone-screen {
    position: absolute;
    top: 4%;
    left: 6%;
    width: 88%;
    height: auto;
    border-radius: 6%;
    box-shadow: inset 0 4px 10px rgba(0, 0, 0, 0.5);
}

@media (max-width: 900px) {
    .hero {
        padding: 72px 0 56px;
    }
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    .hero-copy {
        margin: 0 auto;
    }
    .lede {
        margin-left: auto;
        margin-right: auto;
    }
    .phone-mockup {
        max-width: 280px;
    }
}

/* ============================================================
   Features (.pillar grid, ported from ayia-site)
   ============================================================ */

.features {
    background: var(--color-bg-section);
    padding: 96px 0;
    border-top: 1px solid var(--color-border);
}

.pillars {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding: 0;
}

.pillar {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 28px;
    transition: border-color var(--motion-fast), transform var(--motion-fast);
}

.pillar:hover {
    border-color: var(--color-accent);
    transform: scale(1.02);
}

.pillar-icon {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.pillar h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: var(--fw-bold);
    color: var(--color-text);
    margin-bottom: 8px;
}

.pillar p {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

@media (max-width: 900px) {
    .pillars {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .features {
        padding: 72px 0;
    }
    .pillars {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   FAQ
   ============================================================ */

.faq {
    background: var(--color-bg-section);
    padding: 96px 0;
    border-top: 1px solid var(--color-border);
}

.faq-list {
    margin-top: 32px;
    max-width: 760px;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 0;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: var(--fw-semibold);
    color: var(--color-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: color var(--motion-fast);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    font-family: var(--font-sans);
    font-size: 1.4rem;
    font-weight: var(--fw-regular);
    color: var(--color-text-muted);
    transition: transform var(--motion-fast), color var(--motion-fast);
    line-height: 1;
}

.faq-item[open] summary::after {
    content: "−";
    color: var(--color-accent);
}

.faq-item summary:hover,
.faq-item summary:focus-visible {
    color: var(--color-accent);
    outline: none;
}

.faq-item summary:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: 4px;
}

.faq-answer {
    padding: 0 0 20px;
}

.faq-answer p {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    max-width: 60ch;
}

.faq-answer a {
    color: var(--color-accent);
    border-bottom: 1px solid transparent;
    transition: border-color var(--motion-fast);
}

.faq-answer a:hover,
.faq-answer a:focus-visible {
    border-bottom-color: var(--color-accent);
}

/* ============================================================
   Contact
   ============================================================ */

.contact {
    background: var(--color-bg-section);
    padding: 96px 0;
    border-top: 1px solid var(--color-border);
}

.contact-card {
    margin-top: 32px;
    padding: 40px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    max-width: 560px;
}

.contact-email {
    display: inline-block;
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 1.5vw + 0.75rem, 1.75rem);
    font-weight: var(--fw-bold);
    color: var(--color-accent);
    border-bottom: 1px solid transparent;
    transition: border-color var(--motion-fast);
}

.contact-email:hover,
.contact-email:focus-visible {
    border-bottom-color: var(--color-accent);
}

.contact-socials {
    list-style: none;
    margin-top: 28px;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.contact-socials a {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: var(--fw-medium);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text);
    opacity: 0.7;
    transition: color var(--motion-fast), opacity var(--motion-fast);
}

.contact-socials a:hover,
.contact-socials a:focus-visible {
    color: var(--color-accent);
    opacity: 1;
}

@media (max-width: 600px) {
    .contact-card {
        padding: 28px 24px;
    }
}

/* ============================================================
   Footer
   ============================================================ */

.site-footer {
    background: var(--color-bg-footer);
    border-top: 1px solid var(--color-border);
    padding: 32px 0;
    margin-top: auto;
}

.footer-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--color-text-muted);
}

.footer-brand {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
}

.footer-mark {
    font-family: var(--font-display);
    font-weight: var(--fw-bold);
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.footer-by a {
    color: var(--color-text-muted);
    border-bottom: 1px solid transparent;
    transition: color var(--motion-fast), border-color var(--motion-fast);
}

.footer-by a:hover,
.footer-by a:focus-visible {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: var(--color-text-muted);
    transition: color var(--motion-fast);
}

.footer-legal a:hover,
.footer-legal a:focus-visible {
    color: var(--color-accent);
}

.footer-copy {
    opacity: 0.7;
    margin: 0;
}

@media (max-width: 768px) {
    .footer-inner {
        padding: 0 20px;
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}

.footer-legal a[aria-current="page"] {
    color: var(--color-accent);
}

/* ============================================================
   Docs (legal pages)
   ============================================================ */

.docs {
    padding: 64px 0 96px;
    flex: 1;
}

.docs-inner {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    padding: 0 32px;
}

.docs-back-top {
    margin-bottom: 24px;
}

.docs-back-top a {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: var(--fw-medium);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    transition: color var(--motion-fast);
}

.docs-back-top a:hover,
.docs-back-top a:focus-visible {
    color: var(--color-accent);
}

.docs-title {
    font-size: clamp(2rem, 3vw + 1rem, 2.75rem);
    margin-bottom: 12px;
}

.docs-effective {
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--color-text-muted);
    letter-spacing: 0.04em;
    margin-bottom: 40px;
}

.docs-effective strong {
    color: var(--color-text);
    font-weight: var(--fw-semibold);
}

.docs section {
    margin: 32px 0;
}

.docs h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: var(--fw-bold);
    color: var(--color-text);
    margin-bottom: 12px;
}

.docs p {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 12px;
}

.docs p:last-child {
    margin-bottom: 0;
}

.docs ul,
.docs ol {
    margin: 12px 0 12px 24px;
    padding: 0;
}

.docs li {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 8px;
}

.docs li strong {
    color: var(--color-text);
    font-weight: var(--fw-semibold);
}

.docs a {
    color: var(--color-accent);
    border-bottom: 1px solid transparent;
    transition: border-color var(--motion-fast);
}

.docs a:hover,
.docs a:focus-visible {
    border-bottom-color: var(--color-accent);
}

.docs strong {
    color: var(--color-text);
    font-weight: var(--fw-semibold);
}

.docs-back {
    margin-top: 48px;
}

@media (max-width: 600px) {
    .docs-inner {
        padding: 0 20px;
    }
}

/* ============================================================
   404
   ============================================================ */

.not-found {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 96px 0;
}

.not-found .section-inner {
    text-align: center;
}

.not-found .eyebrow {
    font-size: 14px;
    color: var(--color-text-muted);
    letter-spacing: 0.3em;
}

.not-found .lede {
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 40px;
}