/* =====================================================================
   Public invitation page. Mobile-first: guests open this on a phone.
   Colours come from the template's theme, injected as --t-* variables.
   ===================================================================== */

* { box-sizing: border-box; }

body.inv {
    margin: 0;
    background: var(--t-paper, #fcf8f1);
    color: var(--t-ink, #2c241a);
    font-family: var(--t-body, 'Inter', -apple-system, 'Segoe UI', sans-serif);
    font-size: 16px;
    font-weight: 300;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

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

/* ---- Preview + flash banners --------------------------------------- */

.inv-preview-bar {
    background: var(--t-ink);
    color: var(--t-paper);
    text-align: center;
    padding: 8px 14px;
    font-size: .72rem;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.inv-flash {
    margin: 0;
    padding: 12px 18px;
    text-align: center;
    font-size: .88rem;
}

.inv-flash-success { background: #e6f3ec; color: #2f7d5d; }
.inv-flash-error   { background: #fbeae8; color: #b3453c; }
.inv-flash-info    { background: var(--t-accent-soft); color: var(--t-ink); }

/* ---- Shared ---------------------------------------------------------- */

.inv-eyebrow {
    font-size: .66rem;
    letter-spacing: .24em;
    text-transform: uppercase;
    color: var(--t-accent);
    margin: 0 0 10px;
    font-weight: 500;
}

.inv-heading {
    font-family: var(--t-display);
    font-weight: 400;
    font-size: 1.9rem;
    line-height: 1.15;
    margin: 0 0 18px;
}

.inv-prose {
    margin: 0 auto 18px;
    max-width: 34em;
    color: color-mix(in srgb, var(--t-ink) 78%, transparent);
}

.inv-section {
    padding: 56px 24px;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    border-top: 1px solid color-mix(in srgb, var(--t-accent) 18%, transparent);
}

.inv-section:first-of-type { border-top: 0; }

/* ---- Hero ------------------------------------------------------------ */

.inv-hero {
    min-height: 92vh;
    display: grid;
    place-items: center;
    padding: 64px 24px;
    text-align: center;
    background: var(--t-paper);   /* each design layers its own treatment */
    position: relative;
    overflow: hidden;
}

.inv-hero-inner {
    max-width: 32em;
    position: relative;
    z-index: 2;
}

/* ---- Hero photo ------------------------------------------------------ */

.inv-hero-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

/* A scrim mixed from the design's own paper colour, so the text stays
   readable on a light or a dark design without either being special-cased. */
.inv-hero.has-photo::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--t-paper) 52%, transparent) 0%,
        color-mix(in srgb, var(--t-paper) 80%, transparent) 58%,
        var(--t-paper) 100%
    );
}

.inv-guest-greeting {
    font-family: var(--t-display);
    font-size: 1.1rem;
    color: var(--t-accent);
    margin: 0 0 20px;
    font-style: italic;
}

.inv-names {
    font-family: var(--t-display);
    font-weight: 300;
    font-size: clamp(2.6rem, 13vw, 4.2rem);
    line-height: 1.05;
    margin: 6px 0 22px;
    display: grid;
    gap: 2px;
}

.inv-amp {
    font-size: .46em;
    color: var(--t-accent);
    font-style: italic;
}

.inv-hero-date {
    display: inline-grid;
    gap: 2px;
    padding: 12px 26px;
    border-top: 1px solid var(--t-accent);
    border-bottom: 1px solid var(--t-accent);
    margin: 0 0 16px;
}

.inv-hero-date span {
    font-size: .66rem;
    letter-spacing: .24em;
    color: var(--t-accent);
}

.inv-hero-date strong {
    font-family: var(--t-display);
    font-size: 1.3rem;
    font-weight: 500;
}

.inv-hero-venue {
    margin: 0;
    font-size: .92rem;
    letter-spacing: .06em;
}

.inv-hero-message {
    margin: 22px auto 0;
    max-width: 26em;
    color: color-mix(in srgb, var(--t-ink) 76%, transparent);
}

/* ---- Countdown -------------------------------------------------------- */

.inv-count-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    max-width: 420px;
    margin: 0 auto;
}

.inv-count-grid > div {
    background: var(--t-accent-soft);
    border-radius: 10px;
    padding: 14px 4px;
}

.inv-count-grid strong {
    display: block;
    font-family: var(--t-display);
    font-size: 1.9rem;
    font-weight: 500;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.inv-count-grid span {
    font-size: .62rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--t-ink) 62%, transparent);
}

/* ---- Events ------------------------------------------------------------ */

.inv-events { display: grid; gap: 16px; }

.inv-event {
    background: var(--t-card);
    border: 1px solid color-mix(in srgb, var(--t-accent) 24%, transparent);
    border-radius: 12px;
    padding: 22px 18px;
}

.inv-event h3 {
    font-family: var(--t-display);
    font-weight: 500;
    font-size: 1.35rem;
    margin: 0 0 6px;
}

.inv-event-when {
    margin: 0 0 4px;
    font-size: .88rem;
    color: var(--t-accent);
    letter-spacing: .04em;
}

.inv-event-where { margin: 0; font-weight: 400; }

.inv-event-address {
    margin: 2px 0 0;
    font-size: .85rem;
    color: color-mix(in srgb, var(--t-ink) 62%, transparent);
}

.inv-event-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 14px;
}

/* ---- Buttons ------------------------------------------------------------ */

.inv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 999px;
    border: 1px solid var(--t-accent);
    background: transparent;
    color: var(--t-accent);
    font: inherit;
    font-size: .82rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: background .15s ease, color .15s ease;
}

.inv-btn:hover { background: var(--t-accent-soft); }

.inv-btn:disabled {
    opacity: .5;
    cursor: default;
}

.inv-btn-solid:disabled:hover { filter: none; }

.inv-btn-solid {
    background: var(--t-accent);
    color: var(--t-on-accent);
    width: 100%;
    padding: 13px 20px;
}

.inv-btn-solid:hover { filter: brightness(1.08); background: var(--t-accent); }

/* ---- Gallery ------------------------------------------------------------- */

.inv-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.inv-gallery figure {
    margin: 0;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 8px;
}

.inv-gallery img { width: 100%; height: 100%; object-fit: cover; }

/* ---- Guest gallery ---------------------------------------------------------- */

.inv-guest-grid figure { position: relative; }

.inv-guest-grid figcaption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 18px 8px 7px;
    display: grid;
    gap: 1px;
    text-align: left;
    color: #fff;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, .62));
    font-size: .7rem;
    line-height: 1.3;
}

.inv-photo-caption { font-weight: 500; }
.inv-photo-by { opacity: .82; }

.inv-upload { margin-top: 26px; }

.inv-upload-note {
    margin: 12px 0 0;
    font-size: .8rem;
    text-align: center;
    color: color-mix(in srgb, var(--t-ink) 62%, transparent);
}

/* ---- Venue / seating ------------------------------------------------------ */

.inv-seat-card {
    background: var(--t-accent-soft);
    border-radius: 12px;
    padding: 20px;
    margin: 0 0 20px;
}

.inv-seat-table {
    font-family: var(--t-display);
    font-size: 2rem;
    margin: 0;
    line-height: 1.1;
}

.inv-seat-note {
    margin: 4px 0 0;
    font-size: .82rem;
    color: color-mix(in srgb, var(--t-ink) 64%, transparent);
}

/* ---- RSVP ------------------------------------------------------------------ */

.inv-form {
    max-width: 380px;
    margin: 22px auto 0;
    text-align: left;
}

.inv-label {
    display: block;
    font-size: .68rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--t-ink) 62%, transparent);
    margin: 18px 0 7px;
}

.inv-label span { text-transform: none; letter-spacing: 0; }

.inv-input {
    width: 100%;
    padding: 11px 13px;
    border: 1px solid color-mix(in srgb, var(--t-accent) 36%, transparent);
    border-radius: 8px;
    background: var(--t-card);
    color: inherit;
    font: inherit;
    font-size: .95rem;
}

.inv-input:focus {
    outline: none;
    border-color: var(--t-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--t-accent) 20%, transparent);
}

.inv-choice {
    border: 0;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 8px;
}

.inv-choice legend { padding: 0; }

.inv-choice label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border: 1px solid color-mix(in srgb, var(--t-accent) 30%, transparent);
    border-radius: 8px;
    background: var(--t-card);
    cursor: pointer;
}

.inv-choice label:has(input:checked) {
    border-color: var(--t-accent);
    background: var(--t-accent-soft);
}

.inv-form .inv-btn-solid { margin-top: 22px; }

.inv-note {
    max-width: 30em;
    margin: 18px auto 0;
    padding: 14px 18px;
    border-radius: 10px;
    background: var(--t-accent-soft);
    font-size: .88rem;
}

.inv-note-ok { background: #e6f3ec; color: #2f7d5d; }

/* ---- Contacts ---------------------------------------------------------------- */

.inv-contacts {
    list-style: none;
    padding: 0;
    margin: 0 auto;
    max-width: 24em;
    display: grid;
    gap: 2px;
}

.inv-contacts li {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 12px 4px;
    border-bottom: 1px solid color-mix(in srgb, var(--t-accent) 18%, transparent);
}

.inv-contacts a {
    color: var(--t-accent);
    text-decoration: none;
    font-variant-numeric: tabular-nums;
}

/* ---- Footer -------------------------------------------------------------------- */

.inv-footer {
    text-align: center;
    padding: 48px 24px 56px;
    background: var(--t-accent-soft);
}

.inv-names-small {
    font-family: var(--t-display);
    font-size: 1.5rem;
    margin: 0;
}

.inv-footer-date {
    margin: 4px 0 0;
    font-size: .7rem;
    letter-spacing: .3em;
    color: var(--t-accent);
}

/* ---- Wider screens --------------------------------------------------------------- */

@media (min-width: 720px) {
    .inv-section { padding: 76px 32px; }
    .inv-heading { font-size: 2.3rem; }
    .inv-gallery { grid-template-columns: repeat(3, 1fr); }
}

/* =====================================================================
   Opening cover, background music, and entrance animations.
   All themed from --t-* tokens, so every design inherits them.
   ===================================================================== */

/* ---- The sealed-envelope cover ------------------------------------- */

.inv-cover {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: grid;
    place-items: center;
    padding: 32px 22px;
    text-align: center;
    overflow: hidden;
    background:
        radial-gradient(120% 90% at 50% 10%, var(--t-accent-soft) 0%, transparent 60%),
        var(--t-paper);
    transition: opacity .7s ease, visibility .7s ease;
}

/* A soft moving sheen behind the names, like light on silk. */
.inv-cover-glow {
    position: absolute;
    inset: -40%;
    background:
        radial-gradient(40% 30% at 30% 30%, color-mix(in srgb, var(--t-accent) 22%, transparent), transparent 70%),
        radial-gradient(40% 30% at 70% 60%, color-mix(in srgb, var(--t-accent) 16%, transparent), transparent 70%);
    animation: inv-drift 14s ease-in-out infinite alternate;
    pointer-events: none;
}

@keyframes inv-drift {
    from { transform: translate3d(-4%, -3%, 0) scale(1); }
    to   { transform: translate3d(4%, 4%, 0) scale(1.1); }
}

.inv-cover-inner {
    position: relative;
    z-index: 1;
    max-width: 30em;
    animation: inv-cover-in 1s ease both;
}

@keyframes inv-cover-in {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.inv-cover-eyebrow { margin-bottom: 14px; }

.inv-cover-names {
    font-family: var(--t-display);
    font-weight: 300;
    font-size: clamp(2.2rem, 11vw, 3.4rem);
    line-height: 1.08;
    margin: 0 0 10px;
    display: grid;
    gap: 2px;
}

.inv-cover-names .inv-amp { font-size: .5em; color: var(--t-accent); font-style: italic; }

.inv-cover-date {
    font-size: .8rem;
    letter-spacing: .3em;
    color: var(--t-accent);
    margin: 0 0 30px;
}

/* The envelope itself, drawn in CSS and tappable. */
.inv-envelope {
    position: relative;
    display: block;
    width: min(340px, 82vw);
    aspect-ratio: 3 / 2;
    margin: 0 auto;
    border: 0;
    background: none;
    padding: 0;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    perspective: 900px;
}

.inv-envelope-body {
    position: absolute;
    inset: 0;
    border-radius: 10px;
    background:
        linear-gradient(160deg,
            color-mix(in srgb, var(--t-card) 92%, var(--t-accent)) 0%,
            var(--t-card) 55%);
    border: 1px solid color-mix(in srgb, var(--t-accent) 40%, transparent);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .18);
    overflow: hidden;
}

/* The pocket seams. */
.inv-envelope-body::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        conic-gradient(from 90deg at 50% 0%,
            transparent 0 44%,
            color-mix(in srgb, var(--t-accent) 10%, var(--t-card)) 44% 56%,
            transparent 56%);
    opacity: .6;
}

/* The top flap, hinged at the top edge. */
.inv-envelope-flap {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 58%;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    background: linear-gradient(170deg,
        color-mix(in srgb, var(--t-card) 86%, var(--t-accent)),
        color-mix(in srgb, var(--t-card) 97%, var(--t-accent)));
    border-bottom: 1px solid color-mix(in srgb, var(--t-accent) 36%, transparent);
    transform-origin: top center;
    transition: transform .8s cubic-bezier(.6, .02, .3, 1);
    z-index: 3;
    backface-visibility: hidden;
}

/* The guest's name is written on the flap, so it lifts away as it opens. */
.inv-envelope-name {
    position: absolute;
    top: 20%;
    left: 0;
    right: 0;
    text-align: center;
    font-family: var(--t-display);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--t-ink);
    padding: 0 16%;
}

.inv-seal {
    position: absolute;
    left: 50%;
    top: 62%;
    transform: translate(-50%, -50%);
    width: 74px;
    height: 74px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    z-index: 4;
    background: radial-gradient(circle at 38% 32%,
        color-mix(in srgb, var(--t-accent) 70%, #fff) 0%,
        var(--t-accent) 45%,
        color-mix(in srgb, var(--t-accent) 70%, #000) 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, .3), inset 0 1px 3px rgba(255, 255, 255, .4);
    color: var(--t-on-accent);
    transition: transform .5s ease, opacity .5s ease;
}

.inv-seal-mark { font-size: 1.5rem; line-height: 1; opacity: .9; }

/* A slow breathing pulse to invite the tap. */
.inv-envelope:not(.is-opening) .inv-seal { animation: inv-pulse 2.4s ease-in-out infinite; }

@keyframes inv-pulse {
    0%, 100% { box-shadow: 0 4px 12px rgba(0,0,0,.3), inset 0 1px 3px rgba(255,255,255,.4), 0 0 0 0 color-mix(in srgb, var(--t-accent) 50%, transparent); }
    50%      { box-shadow: 0 4px 12px rgba(0,0,0,.3), inset 0 1px 3px rgba(255,255,255,.4), 0 0 0 12px color-mix(in srgb, var(--t-accent) 0%, transparent); }
}

.inv-cover-hint {
    margin: 26px 0 0;
    font-size: .68rem;
    letter-spacing: .28em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--t-ink) 50%, transparent);
    animation: inv-fade-hint 2.4s ease-in-out infinite;
}

@keyframes inv-fade-hint { 0%, 100% { opacity: .5; } 50% { opacity: 1; } }

/* ---- Opening: seal pops, flap lifts, envelope drops, cover fades --- */

.inv-envelope.is-opening .inv-seal { transform: translate(-50%, -50%) scale(1.4); opacity: 0; }
.inv-envelope.is-opening .inv-envelope-flap { transform: rotateX(-172deg); }

.inv-cover.is-open {
    opacity: 0;
    visibility: hidden;
}

.inv-cover.is-open .inv-cover-inner {
    transform: translateY(-10px) scale(1.04);
    transition: transform .7s ease;
}

/* The content waits behind the cover, then fades up once it opens. */
.inv-content.is-veiled { opacity: 0; }

.inv-content.is-revealed {
    opacity: 1;
    transition: opacity .6s ease .15s;
}

/* ---- Floating music toggle ----------------------------------------- */

.inv-music {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 60;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid color-mix(in srgb, var(--t-accent) 40%, transparent);
    background: color-mix(in srgb, var(--t-card) 86%, transparent);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    color: var(--t-accent);
    cursor: pointer;
    display: grid;
    place-items: center;
    box-shadow: 0 4px 14px rgba(0, 0, 0, .14);
    transition: transform .2s ease;
}

.inv-music:hover { transform: translateY(-1px); }
.inv-music:active { transform: scale(.92); }

.inv-music-icon { position: relative; display: grid; place-items: center; width: 20px; height: 20px; }
.inv-music-note { font-size: 1.1rem; line-height: 1; }

/* Little equaliser bars, shown and animated only while playing. */
.inv-music-wave { position: absolute; inset: 0; display: none; align-items: flex-end; justify-content: center; gap: 2px; }
.inv-music-wave i { width: 3px; height: 40%; background: currentColor; border-radius: 2px; animation: inv-eq .9s ease-in-out infinite; }
.inv-music-wave i:nth-child(2) { animation-delay: .25s; }
.inv-music-wave i:nth-child(3) { animation-delay: .5s; }

@keyframes inv-eq { 0%, 100% { height: 25%; } 50% { height: 85%; } }

.inv-music[data-playing="1"] .inv-music-note { display: none; }
.inv-music[data-playing="1"] .inv-music-wave { display: flex; }

/* ---- Scroll entrance animations ------------------------------------ */

.inv-reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .7s ease, transform .7s ease;
    will-change: opacity, transform;
}

.inv-reveal.is-visible { opacity: 1; transform: none; }

/* ---- Respect people who ask for less motion ------------------------ */

@media (prefers-reduced-motion: reduce) {
    .inv-cover-glow,
    .inv-seal,
    .inv-cover-hint { animation: none !important; }

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

    .inv-envelope-flap,
    .inv-cover,
    .inv-cover-inner { transition-duration: .01ms; }

    .inv-music-wave i { animation: none; height: 55%; }
}

/* Without JS the cover can't be opened, so hide it and show everything. */
html:not(.inv-js) .inv-cover,
html:not(.inv-js) .inv-music { display: none; }
html:not(.inv-js) .inv-content.is-veiled { opacity: 1; }