/**
 * FM Sound — Yritysesittely (sivuston kävijöille, myös erilliselle näytölle)
 * Täysin erillinen sivuston main.css:stä: mitoitus on tehty isolle
 * näytölle ja kauempaa katsottavaksi.
 */

/* ==================================================================
   Perusta ja mitoitus
   ------------------------------------------------------------------
   Kaikki koot ovat rem-yksiköitä ja juurikoko skaalautuu näytön mukaan,
   joten sama esitys toimii kannettavan ruudulla, Full HD -telkkarissa
   ja 4K-näytössä — myös pystyasennossa.
   ================================================================== */
:root {
    --expo-bg: #080d18;
    --expo-bg-soft: #0f172a;
    --expo-panel: rgba(8, 13, 24, 0.72);
    --expo-text: #f8fafc;
    --expo-muted: rgba(248, 250, 252, 0.72);
    --expo-brand: #16a34a;
    --expo-brand-soft: rgba(22, 163, 74, 0.18);
    --expo-yellow: #fcca00;
    --expo-font: "Work Sans", system-ui, -apple-system, sans-serif;
    --expo-font-marker: "Permanent Marker", var(--expo-font);
    --expo-transition: 700ms;
}

* { box-sizing: border-box; }

html {
    font-size: clamp(14px, calc(0.62vw + 0.7vh), 46px);
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    background: var(--expo-bg);
}

body.expo {
    font-family: var(--expo-font);
    color: var(--expo-text);
    -webkit-font-smoothing: antialiased;
    user-select: none;
    -webkit-user-select: none;
}

body.expo.is-idle {
    cursor: none;
}

img, video { display: block; }

kbd {
    display: inline-block;
    min-width: 1.8em;
    padding: 0.15em 0.45em;
    border: 1px solid rgba(248, 250, 252, 0.35);
    border-bottom-width: 2px;
    border-radius: 0.3em;
    background: rgba(248, 250, 252, 0.08);
    font-family: inherit;
    font-size: 0.85em;
    font-weight: 600;
    text-align: center;
}

/* ==================================================================
   Näyttämö ja diat
   ================================================================== */
.expo-stage {
    position: fixed;
    inset: 0;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(22, 163, 74, 0.16) 0%, transparent 55%),
        radial-gradient(ellipse at 100% 100%, rgba(252, 202, 0, 0.10) 0%, transparent 55%),
        var(--expo-bg);
}

.expo-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--expo-transition) ease;
    will-change: opacity;
}

.expo-slide.is-active {
    opacity: 1;
}

/* Sisääntuloanimaatio teksteille (porrastus muuttujalla --i) */
@keyframes expoIn {
    from { opacity: 0; transform: translate3d(0, 1.4rem, 0); }
    to   { opacity: 1; transform: translate3d(0, 0, 0); }
}

.expo-slide .expo-anim { opacity: 0; }

.expo-slide.is-active .expo-anim {
    animation: expoIn 900ms cubic-bezier(0.22, 0.8, 0.3, 1) forwards;
    animation-delay: calc(var(--i, 0) * 110ms);
}

/* ==================================================================
   Mediakerros (referenssidiat)
   ================================================================== */
.expo-media-layer {
    position: absolute;
    inset: 0;
    background: var(--expo-bg);
}

.expo-beat {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 900ms ease;
}

.expo-beat.is-active {
    opacity: 1;
}

/* Sumennettu taustakopio täyttää reunat, kun kuvasuhde ei täsmää */
.expo-beat-bg {
    position: absolute;
    inset: -4%;
    background-position: center;
    background-size: cover;
    filter: blur(2.2rem) brightness(0.45) saturate(1.1);
    transform: scale(1.08);
}

.expo-beat-media {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Ken Burns -liike valokuville (kesto tulee JS:stä muuttujana) */
@keyframes expoKenBurns1 {
    from { transform: scale(1.00) translate3d(0, 0, 0); }
    to   { transform: scale(1.09) translate3d(-1.2%, -0.8%, 0); }
}
@keyframes expoKenBurns2 {
    from { transform: scale(1.08) translate3d(1.2%, 0.6%, 0); }
    to   { transform: scale(1.00) translate3d(0, 0, 0); }
}
@keyframes expoKenBurns3 {
    from { transform: scale(1.02) translate3d(1.4%, -0.6%, 0); }
    to   { transform: scale(1.10) translate3d(-0.8%, 0.8%, 0); }
}

.expo-beat.is-active .expo-beat-media.kb-1 { animation: expoKenBurns1 var(--beat-duration, 8s) linear forwards; }
.expo-beat.is-active .expo-beat-media.kb-2 { animation: expoKenBurns2 var(--beat-duration, 8s) linear forwards; }
.expo-beat.is-active .expo-beat-media.kb-3 { animation: expoKenBurns3 var(--beat-duration, 8s) linear forwards; }

/* Tummennus tekstin alle */
.expo-scrim {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(8, 13, 24, 0.92) 0%, rgba(8, 13, 24, 0.55) 38%, rgba(8, 13, 24, 0) 70%),
        linear-gradient(0deg, rgba(8, 13, 24, 0.85) 0%, rgba(8, 13, 24, 0) 45%);
}

/* ==================================================================
   Referenssidia
   ================================================================== */
.expo-slide--reference .expo-content {
    position: absolute;
    left: 4.5rem;
    bottom: 5.5rem;
    width: min(46%, 34rem);
}

.expo-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    margin: 0 0 0.9rem;
    padding: 0.35em 0.9em;
    border-radius: 999px;
    background: var(--expo-brand);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.expo-kicker--ghost {
    background: rgba(248, 250, 252, 0.12);
    border: 1px solid rgba(248, 250, 252, 0.25);
    color: var(--expo-text);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.expo-title {
    margin: 0 0 0.7rem;
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.02em;
    text-shadow: 0 0.2rem 1.6rem rgba(0, 0, 0, 0.75);
}

.expo-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem 1.1rem;
    margin: 0 0 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--expo-muted);
}

.expo-meta i {
    color: var(--expo-yellow);
    margin-right: 0.3em;
}

.expo-text p {
    margin: 0 0 0.7rem;
    /* --text-scale < 1 vain, jos pitkä kuvaus ei muuten mahtuisi ruudulle */
    font-size: calc(1.02rem * var(--text-scale, 1));
    line-height: 1.55;
    color: rgba(248, 250, 252, 0.9);
    text-shadow: 0 0.1rem 0.8rem rgba(0, 0, 0, 0.6);
}

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

/* Mediapisteet (monta kuvaa / video samassa referenssissä) */
.expo-dots {
    position: absolute;
    right: 4.5rem;
    bottom: 5.8rem;
    display: flex;
    gap: 0.5rem;
}

.expo-dot {
    width: 0.62rem;
    height: 0.62rem;
    border-radius: 50%;
    background: rgba(248, 250, 252, 0.3);
    transition: background 0.3s ease, transform 0.3s ease;
}

.expo-dot.is-active {
    background: var(--expo-yellow);
    transform: scale(1.35);
}

.expo-dot.is-video {
    border-radius: 0.2rem;
    width: 1rem;
}

/* Videomerkki */
.expo-badge-video {
    position: absolute;
    top: 3.5rem;
    right: 4.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.45em;
    padding: 0.4em 1em;
    border-radius: 999px;
    background: rgba(8, 13, 24, 0.7);
    border: 1px solid rgba(248, 250, 252, 0.25);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.expo-badge-video i { color: var(--expo-yellow); }

/* ==================================================================
   Aloitusdia (cover)
   ================================================================== */
.expo-slide--cover {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background:
        radial-gradient(ellipse at 50% 30%, rgba(22, 163, 74, 0.25) 0%, transparent 60%),
        linear-gradient(160deg, #0f172a 0%, #080d18 60%, #0b1220 100%);
}

.expo-cover-inner {
    max-width: 60rem;
    padding: 0 4rem;
}

.expo-cover-logo {
    width: min(20rem, 34vh, 52vw);
    margin: 0 auto 2.2rem;
    filter: drop-shadow(0 1rem 2.5rem rgba(0, 0, 0, 0.6));
}

.expo-cover-title {
    margin: 0 0 1.2rem;
    font-family: var(--expo-font-marker);
    font-size: 5.2rem;
    font-weight: 400;
    line-height: 1;
    transform: rotate(-1.5deg);
    text-shadow: 0 0.3rem 1.5rem rgba(0, 0, 0, 0.6);
}

.expo-cover-title .hl {
    position: relative;
    display: inline-block;
    padding: 0 0.15em;
}

.expo-cover-title .hl::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0.08em;
    height: 0.32em;
    background: var(--expo-yellow);
    opacity: 0.8;
    z-index: -1;
}

.expo-cover-kicker {
    margin: 0 0 1.6rem;
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.expo-cover-lead {
    margin: 0 auto 2.2rem;
    max-width: 44rem;
    font-size: 1.25rem;
    line-height: 1.5;
    color: var(--expo-muted);
}

.expo-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.6em;
    padding: 0.7em 1.5em;
    border-radius: 999px;
    background: rgba(248, 250, 252, 0.1);
    border: 1px solid rgba(248, 250, 252, 0.22);
    font-size: 1rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.expo-pill i { color: var(--expo-yellow); }

/* ==================================================================
   Tietodiat (info / list / contact)
   ================================================================== */
.expo-slide--info,
.expo-slide--list,
.expo-slide--contact {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 5rem 5rem 7rem;
    background:
        radial-gradient(ellipse at 85% 10%, rgba(22, 163, 74, 0.18) 0%, transparent 55%),
        radial-gradient(ellipse at 0% 100%, rgba(252, 202, 0, 0.10) 0%, transparent 50%),
        linear-gradient(150deg, #101a2e 0%, #080d18 70%);
}

.expo-head {
    margin-bottom: 2.6rem;
    max-width: 52rem;
}

.expo-head .expo-title {
    font-size: 3rem;
    text-shadow: none;
}

.expo-lead {
    margin: 0;
    max-width: 46rem;
    font-size: 1.25rem;
    line-height: 1.5;
    color: var(--expo-muted);
}

.expo-grid {
    display: grid;
    gap: 1.6rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.expo-grid--1 { grid-template-columns: minmax(0, 1fr); max-width: 46rem; }
.expo-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.expo-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.3rem; }

.expo-card {
    padding: 1.8rem;
    border-radius: 1.1rem;
    background: rgba(248, 250, 252, 0.06);
    border: 1px solid rgba(248, 250, 252, 0.12);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.expo-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.4rem;
    height: 3.4rem;
    margin-bottom: 1.1rem;
    border-radius: 0.9rem;
    background: var(--expo-brand-soft);
    border: 1px solid rgba(22, 163, 74, 0.45);
    color: #4ade80;
    font-size: 1.6rem;
}

.expo-card h3 {
    margin: 0 0 0.55rem;
    font-size: 1.28rem;
    font-weight: 700;
    line-height: 1.2;
}

.expo-card p {
    margin: 0;
    font-size: 0.98rem;
    line-height: 1.5;
    color: var(--expo-muted);
}

/* Neljän sarakkeen palveluruudukko tiiviimmällä ladonnalla */
.expo-grid--4 .expo-card { padding: 1.4rem; }
.expo-grid--4 .expo-card-icon { width: 2.9rem; height: 2.9rem; font-size: 1.35rem; margin-bottom: 0.85rem; }
.expo-grid--4 .expo-card h3 { font-size: 1.12rem; }
.expo-grid--4 .expo-card p { font-size: 0.9rem; }

/* Asiakaslista */
.expo-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    max-width: 72rem;
}

.expo-chip {
    padding: 0.6em 1.15em;
    border-radius: 999px;
    background: rgba(248, 250, 252, 0.08);
    border: 1px solid rgba(248, 250, 252, 0.16);
    font-size: 1.05rem;
    font-weight: 600;
}

.expo-chip--more {
    background: none;
    border-style: dashed;
    color: var(--expo-muted);
    font-style: italic;
}

/* Yhteystietodia */
.expo-contact-grid {
    display: grid;
    gap: 1.4rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 62rem;
}

.expo-contact-item {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    padding: 1.5rem 1.8rem;
    border-radius: 1.1rem;
    background: rgba(248, 250, 252, 0.06);
    border: 1px solid rgba(248, 250, 252, 0.12);
}

.expo-contact-item i {
    font-size: 2rem;
    color: #4ade80;
}

.expo-contact-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--expo-muted);
}

.expo-contact-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.expo-contact-cta {
    margin-top: 2.2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.6em;
    padding: 1em 2.2em;
    border-radius: 999px;
    background: var(--expo-brand);
    font-size: 1.3rem;
    font-weight: 700;
    box-shadow: 0 1rem 2.5rem -0.8rem rgba(22, 163, 74, 0.8);
}

/* ==================================================================
   Alapalkki ja etenemispalkki
   ================================================================== */
.expo-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 0.9rem 4.5rem 1.4rem;
    background: linear-gradient(0deg, rgba(8, 13, 24, 0.85) 0%, rgba(8, 13, 24, 0) 100%);
    pointer-events: none;
}

.expo-bar-logo {
    height: 1.9rem;
    width: auto;
    opacity: 0.95;
}

.expo-bar-info {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(248, 250, 252, 0.85);
}

.expo-bar-item i {
    color: var(--expo-yellow);
    margin-right: 0.4em;
}

.expo-bar-sep {
    width: 1px;
    height: 1.1em;
    background: rgba(248, 250, 252, 0.3);
}

.expo-progress {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 0.35rem;
    background: rgba(248, 250, 252, 0.12);
}

.expo-progress-bar {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--expo-brand) 0%, #4ade80 60%, var(--expo-yellow) 100%);
}

/* ==================================================================
   Ohjaimet
   ================================================================== */
.expo-controls {
    position: fixed;
    left: 50%;
    bottom: 3.2rem;
    z-index: 40;
    transform: translateX(-50%) translateY(0.8rem);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 1rem;
    border-radius: 999px;
    background: rgba(8, 13, 24, 0.82);
    border: 1px solid rgba(248, 250, 252, 0.18);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 1.5rem 3rem -1rem rgba(0, 0, 0, 0.8);
    opacity: 0;
    pointer-events: none;
    transition: opacity 250ms ease, transform 250ms ease;
}

.expo-controls.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.expo-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.8rem;
    height: 2.8rem;
    padding: 0;
    border: 1px solid rgba(248, 250, 252, 0.2);
    border-radius: 50%;
    background: rgba(248, 250, 252, 0.08);
    color: var(--expo-text);
    font-size: 1.15rem;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.expo-btn:hover {
    background: var(--expo-brand);
    border-color: var(--expo-brand);
    transform: scale(1.06);
}

.expo-btn-primary {
    width: 3.4rem;
    height: 3.4rem;
    background: var(--expo-brand);
    border-color: var(--expo-brand);
    font-size: 1.4rem;
}

.expo-counter {
    padding: 0 0.8rem;
    font-size: 0.95rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--expo-muted);
}

/* Painikkeiden tilakuvakkeet */
.expo-btn .icon-play,
body.is-paused .expo-btn .icon-pause { display: none; }
body.is-paused .expo-btn .icon-play { display: inline-block; }

.expo-btn .icon-sound-off,
body.is-muted .expo-btn .icon-sound-on { display: none; }
body.is-muted .expo-btn .icon-sound-off { display: inline-block; }

/* ==================================================================
   Aloitusnäyttö
   ================================================================== */
.expo-start {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem;
    background:
        radial-gradient(ellipse at 50% 35%, rgba(22, 163, 74, 0.22) 0%, transparent 60%),
        linear-gradient(160deg, #101a2e 0%, #080d18 70%);
    transition: opacity 500ms ease, visibility 500ms ease;
}

.expo-start.is-hidden {
    opacity: 0;
    visibility: hidden;
}

.expo-start-inner { max-width: 48rem; }

.expo-start-logo {
    width: min(18rem, 40vw);
    margin: 0 auto 2rem;
    filter: drop-shadow(0 1rem 2rem rgba(0, 0, 0, 0.5));
}

.expo-start-kicker {
    margin: 0 0 0.6rem;
    font-family: var(--expo-font-marker);
    font-size: 1.5rem;
    color: var(--expo-yellow);
    transform: rotate(-1deg);
}

.expo-start-title {
    margin: 0 0 1rem;
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.expo-start-lead {
    margin: 0 0 2.4rem;
    font-size: 1.15rem;
    color: var(--expo-muted);
}

.expo-start-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.expo-start-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55em;
    padding: 1em 2.2em;
    border: none;
    border-radius: 999px;
    background: var(--expo-brand);
    color: #fff;
    font-family: inherit;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 1rem 2.5rem -0.8rem rgba(22, 163, 74, 0.9);
    transition: transform 0.2s ease, background 0.2s ease;
}

.expo-start-btn:hover { transform: translateY(-0.15rem); background: #15803d; }

.expo-start-btn-ghost {
    background: rgba(248, 250, 252, 0.08);
    border: 1px solid rgba(248, 250, 252, 0.25);
    box-shadow: none;
}

.expo-start-btn-ghost:hover { background: rgba(248, 250, 252, 0.16); }

.expo-start-note {
    margin: 2.4rem 0 0;
    font-size: 0.92rem;
    line-height: 1.7;
    color: rgba(248, 250, 252, 0.55);
}

/* ==================================================================
   Ohje- ja lokinäkymät
   ================================================================== */
.expo-help {
    position: fixed;
    inset: 0;
    z-index: 70;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    background: rgba(8, 13, 24, 0.88);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.expo-help[hidden] { display: none; }

.expo-help-inner {
    width: min(36rem, 92vw);
    padding: 2.5rem;
    border-radius: 1.2rem;
    background: rgba(16, 26, 46, 0.95);
    border: 1px solid rgba(248, 250, 252, 0.18);
    text-align: center;
}

.expo-help-inner h2 {
    margin: 0 0 1.6rem;
    font-size: 1.7rem;
    font-weight: 800;
}

.expo-help dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.8rem 1.4rem;
    margin: 0 0 1.8rem;
    text-align: left;
    font-size: 1rem;
}

.expo-help dt { white-space: nowrap; }
.expo-help dd { margin: 0; color: var(--expo-muted); }

.expo-help .expo-btn-primary {
    width: auto;
    height: auto;
    padding: 0.7em 1.8em;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 700;
}

.expo-debug {
    position: fixed;
    left: 1.5rem;
    top: 1.5rem;
    z-index: 80;
    max-width: 40rem;
    max-height: 60vh;
    overflow: auto;
    margin: 0;
    padding: 1rem 1.2rem;
    border-radius: 0.8rem;
    background: rgba(8, 13, 24, 0.92);
    border: 1px solid rgba(248, 250, 252, 0.2);
    font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
    font-size: 0.78rem;
    line-height: 1.6;
    color: #a7f3d0;
    white-space: pre-wrap;
}

.expo-debug[hidden] { display: none; }

/* ==================================================================
   Kapeat ja pystyasentoiset näytöt (esim. pystyyn käännetty infonäyttö)
   ================================================================== */
@media (max-aspect-ratio: 1/1) {
    .expo-slide--reference .expo-content {
        left: 3rem;
        right: 3rem;
        bottom: 6rem;
        width: auto;
    }

    .expo-scrim {
        background: linear-gradient(0deg, rgba(8, 13, 24, 0.94) 0%, rgba(8, 13, 24, 0.55) 35%, rgba(8, 13, 24, 0) 65%);
    }

    .expo-dots { top: 3.4rem; left: 3rem; right: auto; bottom: auto; }
    .expo-badge-video { right: 3rem; top: 3rem; }

    .expo-slide--info,
    .expo-slide--list,
    .expo-slide--contact { padding: 4rem 3rem 7rem; }

    .expo-grid--3,
    .expo-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .expo-contact-grid { grid-template-columns: minmax(0, 1fr); }
    .expo-bar { padding: 0.9rem 3rem 1.4rem; }
}

@media (max-width: 900px) {
    .expo-grid { grid-template-columns: minmax(0, 1fr); }
    .expo-title { font-size: 2.1rem; }
    .expo-head .expo-title { font-size: 2.3rem; }
    .expo-cover-title { font-size: 3.4rem; }
}

/* Pienennetty liike, jos käyttöjärjestelmä sitä pyytää */
@media (prefers-reduced-motion: reduce) {
    .expo-beat.is-active .expo-beat-media { animation: none !important; }
    .expo-slide.is-active .expo-anim { animation-duration: 1ms; }
}

/* ==================================================================
   Referenssidian tilat (asetetaan JS:stä)
   ================================================================== */

/* Videomerkki näkyy vain videon aikana */
.expo-slide--reference .expo-badge-video {
    opacity: 0;
    transform: translateY(-0.5rem);
    transition: opacity 400ms ease, transform 400ms ease;
}

.expo-slide--reference.is-video-beat .expo-badge-video {
    opacity: 1;
    transform: translateY(0);
}

/* Asiakaslistan porrastus nopeammin, koska nimiä on paljon */
.expo-slide.is-active .expo-chip.expo-anim {
    animation-duration: 600ms;
    animation-delay: calc(250ms + var(--i, 0) * 45ms);
}

.expo-contact-cta.expo-anim { opacity: 0; }

/* Tauko pysäyttää myös liikkeet */
body.is-paused .expo-beat-media,
body.is-paused .expo-anim {
    animation-play-state: paused !important;
}

/* Kuvasuhteeltaan näyttöön sopiva media täyttää koko ruudun */
.expo-beat.is-cover .expo-beat-media { object-fit: cover; }
.expo-beat.is-cover .expo-beat-bg { display: none; }

/* Yhteystietodian logo oikealla (vaakanäytöt) */
.expo-contact-logo {
    position: absolute;
    right: 7rem;
    top: 50%;
    width: min(22rem, 28vw);
    transform: translateY(-58%);
    pointer-events: none;
}

.expo-contact-logo img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 1.5rem 3rem rgba(0, 0, 0, 0.55));
}

@media (max-aspect-ratio: 4/3) {
    .expo-contact-logo { display: none; }
}

/* ==================================================================
   Tilailmoitus (esim. "Ohjaimet piilotettu — O tuo takaisin")
   ================================================================== */
.expo-toast {
    position: fixed;
    top: 2.2rem;
    left: 50%;
    z-index: 75;
    padding: 0.75em 1.5em;
    border-radius: 999px;
    background: rgba(8, 13, 24, 0.88);
    border: 1px solid rgba(248, 250, 252, 0.22);
    box-shadow: 0 1rem 2.5rem -0.8rem rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    font-size: 1rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transform: translate(-50%, -0.8rem);
    transition: opacity 300ms ease, transform 300ms ease;
    pointer-events: none;
}

.expo-toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* ==================================================================
   Linkit sivuston kävijöille: paluu sivustolle ja yhteystiedot
   ================================================================== */
.expo-start-back {
    position: absolute;
    top: 2rem;
    left: 2.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.55em 1.1em;
    border-radius: 999px;
    border: 1px solid rgba(248, 250, 252, 0.2);
    background: rgba(248, 250, 252, 0.06);
    color: var(--expo-muted);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease;
}

.expo-start-back:hover {
    background: rgba(248, 250, 252, 0.14);
    color: var(--expo-text);
}

a.expo-btn { text-decoration: none; }

a.expo-contact-item,
a.expo-contact-cta {
    color: inherit;
    text-decoration: none;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

a.expo-contact-item:hover {
    background: rgba(22, 163, 74, 0.16);
    border-color: rgba(22, 163, 74, 0.55);
}

a.expo-contact-cta { color: #fff; }
a.expo-contact-cta:hover { transform: translateY(-0.15rem); background: #15803d; }

@media (max-width: 600px) {
    .expo-start-back { top: 1.2rem; left: 1.2rem; }
}

/* ==================================================================
   Esittelydia taustavideolla ("FM Sound pähkinänkuoressa")
   ================================================================== */
.expo-slide--story {
    background: var(--expo-bg);
}

.expo-story-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expo-story-scrim {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(8, 13, 24, 0.92) 0%, rgba(8, 13, 24, 0.7) 45%, rgba(8, 13, 24, 0.3) 100%),
        linear-gradient(0deg, rgba(8, 13, 24, 0.85) 0%, rgba(8, 13, 24, 0) 45%);
}

.expo-story-content {
    position: absolute;
    left: 4.5rem;
    top: 50%;
    width: min(55%, 42rem);
    transform: translateY(-55%);
}

/* Otsikko ja leipäteksti samankokoisia kuin referenssidioissa (.expo-title / .expo-text p) */
.expo-story-content .expo-title {
    margin-bottom: 1rem;
}

.expo-story-text p {
    margin: 0 0 0.7rem;
    font-size: calc(1.02rem * var(--text-scale, 1));
    line-height: 1.55;
    color: rgba(248, 250, 252, 0.92);
    text-shadow: 0 0.1rem 0.8rem rgba(0, 0, 0, 0.6);
}

.expo-facts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1.6rem;
}

.expo-fact {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.6em 1.15em;
    border-radius: 999px;
    background: rgba(248, 250, 252, 0.1);
    border: 1px solid rgba(248, 250, 252, 0.22);
    font-size: 0.98rem;
    font-weight: 600;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.expo-fact i { color: var(--expo-yellow); }

@media (max-aspect-ratio: 1/1) {
    .expo-story-content {
        left: 3rem;
        right: 3rem;
        top: auto;
        bottom: 6rem;
        width: auto;
        transform: none;
    }
    .expo-story-scrim {
        background: linear-gradient(0deg, rgba(8, 13, 24, 0.95) 0%, rgba(8, 13, 24, 0.7) 45%, rgba(8, 13, 24, 0.2) 100%);
    }
}

/* ==================================================================
   Puhelimet ja matalat näytöt: diojen teksti vierittyy sormella
   ------------------------------------------------------------------
   Tekstialue rajataan ruudun korkeuteen ja sitä voi vierittää ylös/alas.
   Isoilla näytöillä teksti sen sijaan pienennetään mahtumaan (layout()).
   ================================================================== */
@media (pointer: coarse), (max-height: 600px) {
    .expo-slide--reference .expo-content,
    .expo-story-content {
        max-height: calc(100% - 8.5rem);
        overflow-y: auto;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        touch-action: pan-y;
        scrollbar-width: none;
        padding-right: 0.3rem;
    }

    .expo-slide--reference .expo-content::-webkit-scrollbar,
    .expo-story-content::-webkit-scrollbar {
        display: none;
    }

    /* Häivytys alareunaan, kun tekstiä on vielä alempana */
    .is-scrollable:not(.is-scrolled-end) {
        -webkit-mask-image: linear-gradient(to bottom, #000 82%, transparent 100%);
        mask-image: linear-gradient(to bottom, #000 82%, transparent 100%);
    }
}

@media (pointer: coarse) and (max-aspect-ratio: 1/1), (max-height: 600px) and (max-aspect-ratio: 1/1) {
    .expo-slide--reference .expo-content,
    .expo-story-content {
        max-height: calc(100% - 12rem);
    }
}

/* ==================================================================
   Kosketusnäytöt: työkalut ⋯-painikkeen takana
   ================================================================== */
.expo-menu-btn {
    position: fixed;
    top: max(1rem, env(safe-area-inset-top));
    right: max(1rem, env(safe-area-inset-right));
    z-index: 45;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.9rem;
    height: 2.9rem;
    padding: 0;
    border-radius: 50%;
    border: 1px solid rgba(248, 250, 252, 0.25);
    background: rgba(8, 13, 24, 0.55);
    color: var(--expo-text);
    font-size: 1.3rem;
    opacity: 0.75;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: opacity 0.2s ease, background 0.2s ease;
}

.expo-menu-btn[hidden] { display: none; }

.expo-menu-btn.is-open {
    opacity: 1;
    background: var(--expo-brand);
    border-color: var(--expo-brand);
}

.expo-menu-btn .icon-close,
.expo-menu-btn.is-open .icon-menu { display: none; }
.expo-menu-btn.is-open .icon-close { display: inline-block; }

/* Dianumero ⋯-painikkeen vasemmalla puolella */
.expo-slide-count {
    position: fixed;
    top: max(1rem, env(safe-area-inset-top));
    right: calc(max(1rem, env(safe-area-inset-right)) + 3.4rem);
    z-index: 45;
    display: inline-flex;
    align-items: center;
    height: 2.9rem;
    padding: 0 0.95rem;
    border-radius: 999px;
    border: 1px solid rgba(248, 250, 252, 0.25);
    background: rgba(8, 13, 24, 0.55);
    color: var(--expo-text);
    font-size: 0.95rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.04em;
    white-space: nowrap;
    opacity: 0.75;
    pointer-events: none;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.expo-slide-count[hidden] { display: none; }

/* Videomerkki väistää painiketta ja dianumeroa kosketusnäytöillä */
body.is-touch-ui .expo-badge-video {
    right: max(1rem, env(safe-area-inset-right));
    top: 4.6rem;
}

/* Puhelimen leveydellä työkalupalkki mahtuu ruudulle */
@media (max-width: 700px) {
    body.is-touch-ui .expo-controls {
        gap: 0.35rem;
        padding: 0.5rem 0.6rem;
        max-width: calc(100vw - 1.5rem);
    }
    body.is-touch-ui .expo-controls .expo-counter { display: none; }
}

.expo-counter { white-space: nowrap; }

/* Matalat näytöt (puhelin vaakatasossa): aloitusdia mahtuu ruudulle */
@media (max-height: 600px) {
    .expo-cover-logo { width: min(8rem, 22vh); margin-bottom: 0.8rem; }
    .expo-cover-title { font-size: 2.8rem; margin-bottom: 0.6rem; }
    .expo-cover-kicker { font-size: 1.15rem; margin-bottom: 0.7rem; }
    .expo-cover-lead { font-size: 0.95rem; margin-bottom: 0.9rem; }
    .expo-pill { font-size: 0.85rem; padding: 0.5em 1.1em; }
    .expo-slide--cover { padding-bottom: 3.5rem; }
}

/* ==================================================================
   Kosketusnäytöt: reunojen napautusalueet (20vw kummassakin laidassa)
   Pelkkä visuaalinen kerros (pointer-events: none) — napautukset
   tunnistetaan JS:ssä, jotta tekstin vieritys toimii myös reunoilla.
   ================================================================== */
.expo-tapzone {
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 30;
    width: 20vw;
    display: none;
    align-items: center;
    opacity: 0;
    pointer-events: none;
}

body.is-touch-ui .expo-tapzone { display: flex; }

.expo-tapzone--prev {
    left: 0;
    justify-content: flex-start;
    padding-left: 1rem;
    background: linear-gradient(90deg, rgba(248, 250, 252, 0.2) 0%, rgba(248, 250, 252, 0.04) 100%);
    border-right: 2px dashed rgba(248, 250, 252, 0.45);
}

.expo-tapzone--next {
    right: 0;
    justify-content: flex-end;
    padding-right: 1rem;
    background: linear-gradient(270deg, rgba(248, 250, 252, 0.2) 0%, rgba(248, 250, 252, 0.04) 100%);
    border-left: 2px dashed rgba(248, 250, 252, 0.45);
}

.expo-tapzone i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.2rem;
    height: 3.2rem;
    border-radius: 50%;
    background: rgba(8, 13, 24, 0.7);
    border: 1px solid rgba(248, 250, 252, 0.4);
    color: #fff;
    font-size: 1.6rem;
}

/* Vilkutus ohjatun aloituksen aikana: kolme selvää välähdystä
   (3 × 0,95 s mahtuu ohjevaiheen kestoon, expo.js: GUIDE_HINT_MS) */
@keyframes expoTapFlash {
    0%   { opacity: 0; }
    35%  { opacity: 1; }
    60%  { opacity: 1; }
    100% { opacity: 0; }
}

.expo-tapzone.is-flashing { animation: expoTapFlash 0.95s ease-in-out 3; }

/* Palaute napautuksesta */
@keyframes expoTapPress {
    0%   { opacity: 0.85; }
    100% { opacity: 0; }
}

.expo-tapzone.is-pressed { animation: expoTapPress 0.45s ease-out; }

/* Puhelimet: pyyhkäisyssä dia seuraa sormea (expo.js: moveDrag) */
.expo-slide.is-dragging {
    box-shadow: 0 0 3rem rgba(0, 0, 0, 0.6);
    will-change: transform, opacity;
}

/* ==================================================================
   Puhelimet ja matalat näytöt: staattisten diojen sisältö vierittyy
   (useita paneeleja ei mahdu ruudulle kerralla). Sisältö alkaa ylhäältä,
   jottei keskitys jätä yläosaa vieritysalueen ulkopuolelle.
   ================================================================== */
@media (pointer: coarse), (max-height: 600px) {
    .expo-slide--info,
    .expo-slide--list,
    .expo-slide--contact {
        justify-content: flex-start;
        overflow-y: auto;
        overscroll-behavior: contain;
        -webkit-overflow-scrolling: touch;
        touch-action: pan-y;
        scrollbar-width: none;
        padding-top: 2.5rem;
        padding-bottom: 7rem;
    }

    .expo-slide--info::-webkit-scrollbar,
    .expo-slide--list::-webkit-scrollbar,
    .expo-slide--contact::-webkit-scrollbar {
        display: none;
    }

    .expo-slide--info > *,
    .expo-slide--list > *,
    .expo-slide--contact > * {
        flex-shrink: 0;
    }
}

/* Puhelin vaakatasossa: kaksi saraketta ja tiiviimmät paneelit, jotta
   vieritettävää on mahdollisimman vähän */
@media (max-width: 900px) and (min-aspect-ratio: 1/1) {
    .expo-grid--2,
    .expo-grid--3,
    .expo-grid--4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-height: 600px) {
    .expo-head { margin-bottom: 1.2rem; }
    .expo-head .expo-title { font-size: 2.1rem; }
    .expo-grid,
    .expo-grid--4 { gap: 0.8rem; }
    .expo-card,
    .expo-grid--4 .expo-card { padding: 1rem 1.1rem; }
    .expo-card-icon,
    .expo-grid--4 .expo-card-icon { width: 2.4rem; height: 2.4rem; font-size: 1.15rem; margin-bottom: 0.6rem; }
    .expo-card h3,
    .expo-grid--4 .expo-card h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
    .expo-card p,
    .expo-grid--4 .expo-card p { font-size: 0.9rem; line-height: 1.45; }
    .expo-contact-grid { gap: 0.8rem; }
    .expo-contact-item { padding: 0.9rem 1.1rem; }
    .expo-contact-value { font-size: 1.15rem; }
}

/* ==================================================================
   Ohjattu aloitus (kosketusnäytöt, kerran): elementit ilmestyvät yksi
   kerrallaan pidemmällä väliviiveellä, sitten vilkkuvat reunat ja ⋯
   ================================================================== */
.expo-slide.is-guided.is-active .expo-anim {
    animation-delay: calc(var(--i, 0) * var(--guide-step, 600ms));
}

@keyframes expoMenuFlash {
    0%, 100% { transform: scale(1); opacity: 0.75; }
    15%, 55% { transform: scale(1.25); opacity: 1; background: var(--expo-brand); border-color: var(--expo-brand); box-shadow: 0 0 0 0.6rem rgba(22, 163, 74, 0.35); }
    35%      { transform: scale(1); opacity: 0.8; }
}

.expo-menu-btn.is-flashing { animation: expoMenuFlash 1.8s ease-in-out; }

/* ==================================================================
   PUHELIN (sama ehto kuin expo.js: PHONE_QUERY): kevennetty aloitusnäyttö
   — ei "Katso ilman ääntä" -painiketta eikä esittelylausetta.
   Tabletit ja desktop näyttävät ne edelleen.
   ================================================================== */
@media (pointer: coarse) and (max-width: 950px), (pointer: coarse) and (max-height: 500px) {
    .expo-start-lead,
    .expo-start-btn-ghost {
        display: none;
    }
}

/* ==================================================================
   Kosketusnäytöt: keskialueen napautus piilottaa dian tekstialueen,
   jotta kuva tai video näkyy kokonaan (uusi napautus palauttaa)
   ================================================================== */
.expo-slide--reference .expo-content,
.expo-slide--reference .expo-scrim,
.expo-story-content,
.expo-story-scrim {
    transition: opacity 350ms ease;
}

.expo-slide.is-text-hidden .expo-content,
.expo-slide.is-text-hidden .expo-scrim,
.expo-slide.is-text-hidden .expo-story-content,
.expo-slide.is-text-hidden .expo-story-scrim {
    opacity: 0;
    pointer-events: none;
}

/* ==================================================================
   Home-painike vasemmassa yläkulmassa: paluu FM Soundin etusivulle
   ================================================================== */
.expo-home-btn {
    position: fixed;
    top: max(1rem, env(safe-area-inset-top));
    left: max(1rem, env(safe-area-inset-left));
    z-index: 45;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.9rem;
    height: 2.9rem;
    border-radius: 50%;
    border: 1px solid rgba(248, 250, 252, 0.25);
    background: rgba(8, 13, 24, 0.55);
    color: var(--expo-text);
    font-size: 1.2rem;
    text-decoration: none;
    opacity: 0.75;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: opacity 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.expo-home-btn[hidden] { display: none; }

.expo-home-btn:hover,
.expo-home-btn:focus-visible {
    opacity: 1;
    background: var(--expo-brand);
    border-color: var(--expo-brand);
    color: #fff;
}

/* Pystynäytössä mediapisteet väistävät home-painiketta */
@media (max-aspect-ratio: 1/1) {
    .expo-dots { top: 1.9rem; left: 5rem; }
}

/* ==================================================================
   Vinkki vieritettävästä sisällöstä: nuoli välähtää tekstiosion
   alareunassa muutaman kerran (JS: showScrollHint)
   ================================================================== */
.expo-scroll-hint {
    position: absolute;
    z-index: 6;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 50%;
    background: rgba(8, 13, 24, 0.75);
    border: 1px solid rgba(252, 202, 0, 0.55);
    color: var(--expo-yellow);
    font-size: 1.3rem;
    box-shadow: 0 0.5rem 1.2rem -0.3rem rgba(0, 0, 0, 0.7);
    transform: translate(-50%, -100%);
    pointer-events: none;
    opacity: 0;
    animation: expoScrollHint 1.1s ease-in-out 1.2s 4 both;
}

/* Staattiset diat: koko dia vierittyy -> nuoli dian alareunaan alapalkin yläpuolelle */
.expo-scroll-hint.is-page {
    left: 50%;
    top: auto;
    bottom: 5.4rem;
    transform: translateX(-50%);
}

@keyframes expoScrollHint {
    0%   { opacity: 0; translate: 0 -0.4rem; }
    40%  { opacity: 1; translate: 0 0.2rem; }
    100% { opacity: 0; translate: 0 0.7rem; }
}

@media (prefers-reduced-motion: reduce) {
    .expo-scroll-hint { animation: expoScrollHint 1.1s ease-in-out 1.2s 1 both; }
}

/* ==================================================================
   Kääntökehote (iPhone pystyasennossa): koko ruudun taso, jossa
   puhelinkuvake kääntyy vaakaan. Poistuu, kun puhelin käännetään.
   ================================================================== */
.expo-rotate {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    background:
        radial-gradient(ellipse at 50% 35%, rgba(22, 163, 74, 0.24) 0%, transparent 60%),
        linear-gradient(160deg, #101a2e 0%, #080d18 70%);
}

.expo-rotate[hidden] { display: none; }

.expo-rotate-inner { max-width: 22rem; }

.expo-rotate-phone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 6rem;
    height: 6rem;
    margin-bottom: 1.6rem;
    border-radius: 50%;
    background: rgba(22, 163, 74, 0.15);
    border: 1px solid rgba(22, 163, 74, 0.45);
    color: var(--expo-yellow);
    font-size: 3rem;
}

.expo-rotate-phone i {
    display: inline-block;
    animation: expoRotatePhone 2.4s ease-in-out infinite;
}

/* Pysty -> vaaka -> tauko -> takaisin */
@keyframes expoRotatePhone {
    0%, 15%   { transform: rotate(0deg); }
    45%, 75%  { transform: rotate(-90deg); }
    100%      { transform: rotate(0deg); }
}

.expo-rotate-title {
    margin: 0 0 0.7rem;
    font-size: 1.7rem;
    font-weight: 800;
    line-height: 1.2;
}

.expo-rotate-text {
    margin: 0 0 2rem;
    font-size: 1.05rem;
    line-height: 1.5;
    color: var(--expo-muted);
}

.expo-rotate-continue {
    padding: 0.75em 1.6em;
    border-radius: 999px;
    border: 1px solid rgba(248, 250, 252, 0.3);
    background: rgba(248, 250, 252, 0.08);
    color: var(--expo-text);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
}

@media (prefers-reduced-motion: reduce) {
    .expo-rotate-phone i { animation: none; transform: rotate(-90deg); }
}