/* BalmOS — landing statique (balmos.ch)
   Réplique la landing Filament sans build ni dépendance runtime.
   Design tokens repris de resources/css/filament/balmos/theme.css (FIX-012). */

/* ---------- Design tokens ---------- */
:root {
    --bg: #fafafa;
    --ink: #18181b;          /* zinc-900 */
    --ink-soft: #52525b;     /* zinc-600 */
    --ink-mute: #71717a;     /* zinc-500 */
    --line: rgb(228 228 231 / 0.8);   /* zinc-200/80 */
    --line-strong: rgb(161 161 170 / 0.35);
    --card-bg: #f4f4f5;      /* zinc-100 */
    --accent: #e8a317;
    --accent-ink: #1a1305;
    --hero-ink: #071018;
    --nav-bg: rgb(255 255 255 / 0.95);
    --footer-bg: #fafafa;
    --panel-bg: rgb(244 244 245 / 0.7);
    --field-bg: #ffffff;
    --field-border: #d4d4d8;
    --font-display: 'Sora', 'Instrument Sans', ui-sans-serif, system-ui, sans-serif;
    --font-sans: 'Instrument Sans', ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji',
        'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
}

html.dark {
    --bg: #09090b;
    --ink: #fafafa;
    --ink-soft: #a1a1aa;     /* zinc-400 */
    --ink-mute: #71717a;
    --line: rgb(255 255 255 / 0.1);
    --line-strong: rgb(161 161 170 / 0.35);
    --card-bg: rgb(24 24 27 / 0.4);
    --accent: #f0b429;
    --accent-ink: #1a1305;
    --hero-ink: #05080d;
    --nav-bg: rgb(9 9 11 / 0.95);
    --footer-bg: #09090b;
    --panel-bg: rgb(24 24 27 / 0.4);
    --field-bg: #18181b;
    --field-border: #3f3f46;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--ink);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: clip;
}

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

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

h1,
h2,
h3,
p,
ul,
ol,
figure {
    margin: 0;
}

button {
    font: inherit;
    cursor: pointer;
}

.container {
    width: 100%;
    max-width: 72rem;
    margin-inline: auto;
    padding-inline: 1rem;
}

@media (min-width: 640px) {
    .container {
        padding-inline: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding-inline: 2rem;
    }
}

.display {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.03em;
}

.accent-text {
    color: var(--accent);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- CTA button ---------- */
.cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: 0.375rem;
    background-color: var(--accent);
    color: var(--accent-ink);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.75rem 1.5rem;
    border: 0;
    transition: filter 160ms ease, transform 160ms ease;
}

.cta:hover {
    filter: brightness(1.06);
}

.cta:active {
    transform: translateY(1px);
}

.cta svg {
    width: 1rem;
    height: 1rem;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--field-border);
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0;
    color: var(--ink);
    transition: border-color 160ms ease, background-color 160ms ease;
}

.btn-ghost:hover {
    border-color: var(--ink-mute);
}

/* ---------- Header / nav ---------- */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--line);
    background-color: var(--nav-bg);
    backdrop-filter: saturate(1.1) blur(6px);
    -webkit-backdrop-filter: saturate(1.1) blur(6px);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 1rem;
}

.nav__logo {
    height: 1.75rem;
    width: auto;
}

.nav__links {
    display: none;
    align-items: center;
    gap: 2rem;
    font-size: 0.875rem;
    color: var(--ink-soft);
}

.nav__links a {
    transition: color 160ms ease;
}

.nav__links a:hover {
    color: var(--ink);
}

.nav__right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav__client {
    display: none;
    font-size: 0.875rem;
    color: var(--ink-soft);
    transition: color 160ms ease;
}

.nav__client:hover {
    color: var(--ink);
}

.nav .cta {
    padding: 0.5rem 1rem;
}

@media (min-width: 640px) {
    .nav__client {
        display: inline;
    }
}

@media (min-width: 768px) {
    .nav__links {
        display: flex;
    }
}

/* ---------- Theme switcher ---------- */
.theme-switcher {
    display: inline-flex;
    align-items: center;
    border-radius: 0.5rem;
    border: 1px solid var(--field-border);
    background-color: var(--card-bg);
    padding: 0.125rem;
}

.theme-switcher__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2rem;
    width: 2rem;
    border: 0;
    background: transparent;
    border-radius: 0.375rem;
    color: var(--ink-mute);
    transition: color 160ms ease, background-color 160ms ease;
}

.theme-switcher__btn svg {
    width: 1rem;
    height: 1rem;
}

.theme-switcher__btn:hover {
    color: var(--ink);
}

.theme-switcher__btn[aria-pressed='true'] {
    background-color: #ffffff;
    color: #18181b;
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.08);
}

html.dark .theme-switcher__btn[aria-pressed='true'] {
    background-color: #27272a;
    color: #ffffff;
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: min(92vh, 52rem);
    overflow: hidden;
    background-color: var(--hero-ink);
}

.hero__media {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    opacity: var(--hero-opacity, 1);
    will-change: opacity;
}

/* Contenu qui défile PAR-DESSUS le hero fixe (fond opaque = masque le chat) */
.page-body {
    position: relative;
    z-index: 1;
    background-color: var(--bg);
}

.hero__img {
    height: 100%;
    width: 100%;
    object-fit: cover;
    object-position: 62% center;
    transform: scale(1.06);
    animation: hero-drift 28s ease-in-out infinite alternate;
}

.hero__scrim {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(105deg, rgb(7 16 24 / 0.92) 0%, rgb(7 16 24 / 0.78) 42%, rgb(7 16 24 / 0.35) 68%, rgb(7 16 24 / 0.55) 100%),
        linear-gradient(to top, rgb(7 16 24 / 0.75) 0%, transparent 45%);
}

.hero__inner {
    position: relative;
    z-index: 10;
    min-height: min(92vh, 52rem);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-block: 7rem 4rem;
}

@media (min-width: 1024px) {
    .hero__inner {
        justify-content: center;
        padding-block: 5rem 6rem;
    }
}

.hero__content {
    max-width: 42rem;
}

.hero__brand {
    height: 2.5rem;
    width: auto;
    margin-bottom: 2rem;
    filter: drop-shadow(0 2px 12px rgb(0 0 0 / 0.45));
}

.hero h1 {
    font-size: clamp(2.25rem, 6vw, 3.75rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: #ffffff;
}

.hero__sub {
    margin-top: 1.5rem;
    max-width: 36rem;
    font-size: 1.125rem;
    line-height: 1.7;
    color: rgb(228 228 231 / 0.95);
}

.hero__actions {
    margin-top: 2.25rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}

.hero .btn-ghost {
    border-color: rgb(255 255 255 / 0.35);
    color: #ffffff;
    background: transparent;
}

.hero .btn-ghost:hover {
    border-color: rgb(255 255 255 / 0.7);
    background-color: rgb(255 255 255 / 0.05);
}

@media (min-width: 640px) {
    .hero__brand {
        height: 3rem;
    }
}

/* Sur écran étroit, recentrer la tête du chat (sinon le crop 62% la décale) */
@media (max-width: 767px) {
    .hero__img {
        object-position: 50% top;
    }
}

@keyframes hero-drift {
    from {
        transform: scale(1.06) translate3d(0, 0, 0);
    }

    to {
        transform: scale(1.1) translate3d(-1.5%, -1%, 0);
    }
}

/* ---------- Section shared ---------- */
.section {
    padding-block: 5rem;
}

.section__head {
    max-width: 42rem;
}

.section__head h2 {
    font-size: clamp(1.875rem, 4vw, 2.25rem);
    letter-spacing: -0.03em;
    color: var(--ink);
}

.section__head p {
    margin-top: 1rem;
    font-size: 1.125rem;
    color: var(--ink-soft);
}

.band {
    border-block: 1px solid var(--line);
}

/* ---------- Project index (editorial rows) ---------- */
.index {
    list-style: none;
    margin: 3rem 0 0;
    padding: 0;
    border-top: 1px solid var(--line-strong);
}

.index__row {
    display: grid;
    grid-template-columns: 3.25rem 1fr;
    gap: 1rem;
    padding-block: 1.25rem;
    border-bottom: 1px solid var(--line-strong);
    position: relative;
}

.index__row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: var(--accent);
    transition: width 220ms ease;
}

.index__row:hover::before {
    width: 3px;
}

.index__num {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--accent);
    padding-top: 0.2rem;
}

.index__tag {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-mute);
}

.index__title {
    margin-top: 0.35rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink);
}

.index__text {
    margin-top: 0.35rem;
    max-width: 40rem;
    font-size: 0.925rem;
    line-height: 1.55;
    color: var(--ink-soft);
}

/* ---------- Méthode ---------- */
.methode {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    border-block: 1px solid var(--line);
}

.methode__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image: url('../images/BettravesCat.png');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    opacity: 0.28;
    pointer-events: none;
    transform: scale(1.08);
    filter: saturate(0.85) blur(0.5px);
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, rgb(0 0 0 / 0.35) 12%, #000 28%, #000 72%, rgb(0 0 0 / 0.35) 88%, transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0%, rgb(0 0 0 / 0.35) 12%, #000 28%, #000 72%, rgb(0 0 0 / 0.35) 88%, transparent 100%);
}

html.dark .methode__bg {
    opacity: 0.42;
}

.methode::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        linear-gradient(to bottom, var(--bg) 0%, color-mix(in oklab, var(--bg) 88%, transparent) 10%, transparent 26%),
        linear-gradient(to top, var(--bg) 0%, color-mix(in oklab, var(--bg) 88%, transparent) 10%, transparent 26%),
        radial-gradient(ellipse 90% 70% at 50% 50%, color-mix(in oklab, var(--bg) 55%, transparent) 0%, color-mix(in oklab, var(--bg) 82%, transparent) 100%);
}

.methode__inner {
    position: relative;
    z-index: 2;
    padding-block: 5rem;
}

.steps {
    list-style: none;
    margin: 3.5rem 0 0;
    padding: 0;
    display: grid;
    gap: 2.5rem;
}

.step__num {
    display: block;
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1;
    color: color-mix(in oklab, var(--accent) 55%, transparent);
}

.step h3 {
    margin-top: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink);
}

.step p {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--ink-soft);
}

@media (min-width: 640px) {
    .steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .steps {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
    }
}

/* ---------- Pains ---------- */
.pains-band {
    border-block: 1px solid var(--line);
    background-color: var(--card-bg);
}

.pains-band__inner {
    padding-block: 3.5rem;
}

.pains-band__kicker {
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--ink-mute);
}

.pains {
    margin-top: 2.5rem;
    display: grid;
    gap: 2rem 2.5rem;
}

.pain {
    border-left: 2px solid var(--accent);
    padding-left: 1rem;
}

.pain h3 {
    font-weight: 600;
    color: var(--ink);
}

.pain p {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--ink-soft);
}

@media (min-width: 640px) {
    .pains {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .pains {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ---------- Gouvernance ---------- */
.gov {
    display: grid;
    gap: 3rem;
}

.gov__list {
    list-style: none;
    margin: 2rem 0 0;
    padding: 0;
    display: grid;
    gap: 1.25rem;
}

.gov__list li {
    display: flex;
    gap: 0.75rem;
    color: var(--ink-soft);
}

.check {
    display: inline-block;
    width: 0.65rem;
    height: 0.65rem;
    margin-top: 0.35rem;
    flex-shrink: 0;
    background: var(--accent);
    clip-path: polygon(14% 44%, 0 58%, 40% 100%, 100% 12%, 84% 0, 38% 68%);
}

.summary {
    padding-top: 1.75rem;
    border-top: 3px solid var(--accent);
}

.summary__kicker {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--accent);
}

.summary__lead {
    margin-top: 1rem;
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--ink-soft);
}

.summary__grid {
    margin-top: 2rem;
    display: grid;
    gap: 1.5rem;
    border-top: 1px solid var(--field-border);
    padding-top: 2rem;
}

.summary__grid dt {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ink);
}

.summary__grid dd {
    margin: 0.25rem 0 0;
    font-size: 0.875rem;
    color: var(--ink-mute);
}

@media (min-width: 640px) {
    .summary__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .gov {
        grid-template-columns: repeat(2, 1fr);
        align-items: start;
        gap: 4rem;
    }

    .summary {
        padding: 2rem 0 0 1.75rem;
        border-top: 0;
        border-left: 3px solid var(--accent);
    }
}

/* ---------- Contact ---------- */
.contact {
    border-top: 1px solid var(--line);
}

.contact__grid {
    display: grid;
    gap: 3rem;
}

.contact__intro h2 {
    font-size: clamp(1.875rem, 4vw, 2.25rem);
    letter-spacing: -0.03em;
    color: var(--ink);
}

.contact__intro p {
    margin-top: 1rem;
    font-size: 1.125rem;
    color: var(--ink-soft);
}

.contact__meta {
    margin-top: 2rem;
    display: grid;
    gap: 1rem;
}

.contact__meta a {
    color: var(--accent);
    font-weight: 600;
}

.form {
    display: grid;
    gap: 1.25rem;
    background-color: var(--panel-bg);
    border: 1px solid var(--line);
    border-radius: 0.75rem;
    padding: 1.75rem;
}

.field {
    display: grid;
    gap: 0.4rem;
}

.field label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ink);
}

.field .req {
    color: var(--accent);
}

.field input,
.field textarea {
    font: inherit;
    width: 100%;
    padding: 0.7rem 0.85rem;
    border-radius: 0.5rem;
    border: 1px solid var(--field-border);
    background-color: var(--field-bg);
    color: var(--ink);
    transition: border-color 160ms ease, box-shadow 160ms ease;
}

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

.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
}

.field--hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form__submit {
    justify-self: start;
}

.form__note {
    font-size: 0.75rem;
    color: var(--ink-mute);
}

@media (min-width: 1024px) {
    .contact__grid {
        grid-template-columns: 0.9fr 1.1fr;
        gap: 4rem;
        align-items: start;
    }
}

/* ---------- Status banner ---------- */
.banner {
    display: none;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding: 0.9rem 1.1rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.banner.is-visible {
    display: flex;
}

.banner--ok {
    background-color: color-mix(in oklab, #22c55e 14%, transparent);
    border-color: color-mix(in oklab, #22c55e 40%, transparent);
    color: #15803d;
}

html.dark .banner--ok {
    color: #86efac;
}

.banner--error {
    background-color: color-mix(in oklab, #ef4444 12%, transparent);
    border-color: color-mix(in oklab, #ef4444 40%, transparent);
    color: #b91c1c;
}

html.dark .banner--error {
    color: #fca5a5;
}

/* ---------- Final CTA ---------- */
.final {
    border-top: 1px solid var(--line);
}

.final__inner {
    text-align: center;
    padding-block: 5rem;
}

.final h2 {
    font-size: clamp(1.875rem, 4vw, 2.25rem);
    letter-spacing: -0.03em;
    color: var(--ink);
}

.final p {
    max-width: 36rem;
    margin: 1rem auto 0;
    font-size: 1.125rem;
    color: var(--ink-soft);
}

.final__actions {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--line);
    background-color: var(--footer-bg);
}

.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 2rem;
    font-size: 0.875rem;
    color: var(--ink-mute);
}

.footer__links {
    display: flex;
    gap: 1.5rem;
}

.footer__links a {
    transition: color 160ms ease;
}

.footer__links a:hover {
    color: var(--ink);
}

@media (min-width: 640px) {
    .footer__inner {
        flex-direction: row;
    }
}

/* ---------- Slide reveal ---------- */
.reveal {
    opacity: 0;
    transform: translateX(var(--reveal-offset, 2.5rem));
    transition:
        opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: var(--reveal-delay, 0ms);
    will-change: opacity, transform;
}

.reveal.from-left {
    --reveal-offset: -2.5rem;
}

.reveal.from-right {
    --reveal-offset: 2.5rem;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal.from-left.exit-up:not(.is-visible) {
    --reveal-offset: 2.5rem;
}

.reveal.from-right.exit-up:not(.is-visible) {
    --reveal-offset: -2.5rem;
}

.reveal:not(.is-visible) {
    transition-delay: 0ms;
    transition-duration: 0.45s;
}

@media (prefers-reduced-motion: reduce) {
    .hero__img {
        animation: none;
        transform: scale(1.06);
    }

    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .index__row::before {
        transition: none;
    }
}