/* Full-screen, one-question-at-a-time registration flow. Deliberately
   isolated from the rest of the site's chrome (no navbar/footer) — it only
   relies on the :root brand tokens defined in home.css and owns its own
   layout entirely. */

.register-app {
    --ease-out: cubic-bezier(.16, 1, .3, 1);
    --ease-in: cubic-bezier(.4, 0, 1, 1);

    position: fixed;
    inset: 0;
    background-color: var(--navy);
    color: var(--cream);
    overflow: hidden;
    isolation: isolate;

    &::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: radial-gradient(rgb(255 255 255 / .1) 1px, transparent 1.5px);
        background-size: 16px 16px;
        pointer-events: none;
    }
}

@keyframes shell-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.register-app__brand {
    all: unset;
    position: absolute;
    top: clamp(1.25rem, 4vh, 2rem);
    left: clamp(1.25rem, 4vw, 2.5rem);
    z-index: 20;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    animation: shell-fade-in .6s ease both;

    .register-app__brand-img {
        display: block;
        height: 1.9rem;
        width: auto;
    }
}

/* ---------- Step timeline: all stages visible, current one highlighted ---------- */
.register-app__timeline {
    position: absolute;
    top: clamp(1.25rem, 4vh, 2rem);
    left: 50%;
    translate: -50% 0;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: clamp(.35rem, 1.5vw, .6rem);
    animation: shell-fade-in .6s ease both;
}

.timeline__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .4rem;
}

.timeline__step .dot {
    width: .55rem;
    height: .55rem;
    border-radius: 50%;
    background-color: rgb(from var(--cream) r g b / .3);
    transition: background-color .3s var(--ease-out), scale .3s var(--ease-out), box-shadow .3s var(--ease-out);
}

.timeline__step .label {
    font-family: var(--ff-monospace);
    font-size: .65rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    white-space: nowrap;
    color: rgb(from var(--cream) r g b / .5);
    opacity: 0;
    max-width: 0;
    overflow: hidden;
    transition: opacity .25s, color .25s;
}

.timeline__step.done .dot {
    background-color: var(--gold);
}

.timeline__step.active .dot {
    background-color: var(--gold);
    scale: 1.5;
    box-shadow: 0 0 8px rgb(from var(--gold) r g b / .7);
}

.timeline__step.active .label {
    opacity: 1;
    max-width: 12rem;
    color: var(--gold);
}

.timeline__line {
    width: clamp(1.1rem, 3.5vw, 2.5rem);
    height: 2px;
    background-color: rgb(from var(--cream) r g b / .2);
    transition: background-color .3s var(--ease-out);
}

.timeline__line.done {
    background-color: var(--gold);
}

@media (width < 560px) {
    .register-app__timeline {
        gap: .3rem;
    }

    .timeline__step .label {
        display: none;
    }

    .timeline__line {
        width: 1rem;
    }
}

.register-app__back {
    all: unset;
    /* `all: unset` resets `display` to its CSS-wide `initial` value (`inline`
       for a button), which wins over the UA stylesheet's `[hidden] { display:
       none }` at equal specificity since this rule loads later — so `[hidden]`
       needs to be re-asserted explicitly here. */
    position: absolute;
    bottom: clamp(1.25rem, 4vh, 2rem);
    left: clamp(1.25rem, 4vw, 2.5rem);
    z-index: 20;
    cursor: pointer;
    font-family: var(--ff-monospace);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    opacity: .55;
    transition: opacity .2s;
    animation: shell-fade-in .6s ease .15s both;

    &:hover {
        opacity: 1;
    }

    &[hidden] {
        display: none;
    }
}

.register-app__utility {
    position: absolute;
    bottom: clamp(1.25rem, 4vh, 2rem);
    right: clamp(1.25rem, 4vw, 2.5rem);
    z-index: 20;
    display: flex;
    gap: 1.25rem;
    animation: shell-fade-in .6s ease .15s both;
}

.utility-btn {
    all: unset;
    /* see the note on .register-app__back — `all: unset` needs `[hidden]`
       re-asserted explicitly or it never actually hides. */
    cursor: pointer;
    font-family: var(--ff-monospace);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    opacity: .55;
    transition: opacity .2s;

    &:hover {
        opacity: 1;
    }

    &[hidden] {
        display: none;
    }
}

/* ---------- History panel: view/clear answers from any step ---------- */
.history-panel {
    position: fixed;
    inset: 0;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background-color: rgb(from var(--ink) r g b / .55);
}

.history-panel[hidden] {
    display: none;
}

.history-panel__card {
    width: 100%;
    max-width: 30rem;
    max-height: 80vh;
    overflow-y: auto;
    background-color: var(--cream);
    color: var(--ink);
    border: 2px solid var(--ink);
    padding: 2rem;
    box-shadow: .5rem .5rem 0 0 rgb(0 0 0 / .25);
}

.history-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;

    .dec_meta {
        color: var(--maroon);
    }
}

.history-panel__close {
    all: unset;
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    padding: 0 .25rem;
}

.history-panel__footer {
    margin-top: 1.5rem;
}

.history-panel .review__wrapper {
    max-height: none;
}

.history-panel .review__row {
    border-bottom-color: rgb(from var(--ink) r g b / .15);
}

.history-panel .review__empty {
    opacity: .6;
    font-style: italic;
}

.slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    --enter-y: 2.5rem;

    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-y: auto;
    padding: 6rem 1.5rem 5rem;
    opacity: 0;
    scale: .96;
    translate: 0 var(--enter-y);
    pointer-events: none;
    transition: opacity .48s var(--ease-out), translate .48s var(--ease-out), scale .48s var(--ease-out);
}

.slide.active {
    opacity: 1;
    scale: 1;
    translate: 0 0;
    pointer-events: auto;
}

.slide.leaving {
    opacity: 0;
    scale: .96;
    translate: 0 calc(var(--enter-y) * -1);
    transition-duration: .22s;
    transition-timing-function: var(--ease-in);
}

.slide.shake {
    animation: slide-shake .4s;
}

@keyframes slide-shake {

    0%,
    100% {
        translate: 0 0;
    }

    25% {
        translate: -.6rem 0;
    }

    75% {
        translate: .6rem 0;
    }
}

/* Staggered entrance for a slide's own content, replayed every time it
   becomes active (including navigating back to a previously-seen slide) */
@keyframes child-rise {
    from {
        opacity: 0;
        translate: 0 .65rem;
    }

    to {
        opacity: 1;
        translate: 0 0;
    }
}

.slide.active .slide__eyebrow {
    animation: child-rise .5s var(--ease-out) both;
}

.slide.active h1 {
    animation: child-rise .5s var(--ease-out) .06s both;
}

.slide.active .slide__input,
.slide.active .slide__choices,
.slide.active .teammate__grid,
.slide.active .review__wrapper {
    animation: child-rise .5s var(--ease-out) .12s both;
}

.slide.active .slide__error,
.slide.active .slide__actions {
    animation: child-rise .5s var(--ease-out) .18s both;
}

.slide__inner {
    width: 100%;
    max-width: 40rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    margin: auto;
}

.slide__eyebrow {
    font-family: var(--ff-monospace);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--gold);
    opacity: .85;
}

.slide h1 {
    font-family: var(--ff-display);
    text-transform: uppercase;
    line-height: 1.05;
    font-size: clamp(1.75rem, 5cqw, 3rem);
    margin: 0;
}

.slide__input {
    width: 100%;
    background: none;
    border: none;
    border-bottom: 3px solid rgb(from var(--cream) r g b / .3);
    text-align: center;
    font-family: inherit;
    font-size: clamp(1.25rem, 3cqw, 1.75rem);
    color: var(--cream);
    padding: .5rem .25rem;
    caret-color: var(--gold);
}

.slide__input::placeholder {
    color: rgb(from var(--cream) r g b / .35);
}

.slide__input:focus-visible {
    outline: none;
    border-color: var(--gold);
}

.slide__input.invalid {
    border-color: var(--maroon);
}

.slide__error {
    color: color-mix(in srgb, var(--maroon) 55%, white);
    font-family: var(--ff-monospace);
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    min-height: 1.2em;
    opacity: 0;
    transition: opacity .2s;
}

.slide__error.show {
    opacity: 1;
}

.slide__actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .6rem;
    margin-top: .5rem;
}

.slide__continue {
    --bg: var(--gold);
    --color: var(--ink);
    --border: 2px solid var(--ink);
    font-family: var(--ff-monospace);
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: .85rem 2rem;
    box-shadow: 0 3px 0 0 var(--ink);
    transition: translate .15s var(--ease-out), box-shadow .15s var(--ease-out);
}

.slide__continue:hover:not(:disabled) {
    translate: 0 -2px;
    box-shadow: 0 5px 0 0 var(--ink);
}

.slide__continue:active:not(:disabled) {
    translate: 0 1px;
    box-shadow: 0 2px 0 0 var(--ink);
}

.slide__continue:disabled {
    box-shadow: 0 3px 0 0 rgb(from var(--ink) r g b / .4);
    cursor: default;
}

.slide__hint {
    font-family: var(--ff-monospace);
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    opacity: .5;
}

/* Choice slides — module pick, team size pick */
.slide__choices {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.slide__choice {
    position: relative;
}

.slide__choice input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: pointer;
}

.slide__choice label {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .25rem 1rem;
    border: 2px solid rgb(from var(--cream) r g b / .3);
    padding: 1rem 1.5rem;
    cursor: pointer;
    text-align: left;
    transition: border-color .15s, background-color .15s, translate .15s var(--ease-out);
}

.slide__choice label:hover {
    translate: .2rem 0;
}

@keyframes choice-pop {
    0% {
        scale: 1;
    }

    45% {
        scale: .96;
    }

    100% {
        scale: 1;
    }
}

.slide__choice input:checked+label {
    animation: choice-pop .3s var(--ease-out);
}

.slide__choice label .mark {
    font-family: var(--ff-monospace);
    font-size: .8rem;
    color: var(--gold);
    flex-shrink: 0;
}

.slide__choice label .txt {
    font-family: var(--ff-display);
    text-transform: uppercase;
    font-size: clamp(1rem, 2.4cqw, 1.35rem);
}

.slide__choice input:checked+label,
.slide__choice label:hover {
    border-color: var(--gold);
    background-color: rgb(from var(--gold) r g b / .1);
}

.slide__choice-price {
    font-family: var(--ff-monospace);
    font-size: .8rem;
    opacity: .75;
    margin-left: auto;
    flex-shrink: 0;
}

.slide__choice-note {
    display: block;
    width: 100%;
    font-family: var(--ff-monospace);
    font-size: .7rem;
    opacity: .6;
    margin-top: .35rem;
}

.slide__choice--disabled label {
    opacity: .4;
    cursor: not-allowed;
}

.slide__choice--disabled label:hover {
    translate: none;
    border-color: rgb(from var(--cream) r g b / .3);
    background-color: transparent;
}

.slide__choice--disabled .slide__choice-note {
    opacity: .9;
    color: var(--gold);
}

/* Teammates slide */
.teammate__grid {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.teammate__row {
    display: grid;
    grid-template-columns: 1fr;
    gap: .6rem;
    text-align: left;
}

.teammate__row[hidden] {
    display: none;
}

@media (width >=640px) {
    .teammate__row {
        grid-template-columns: 1fr 1fr;
        align-items: end;
    }
}

.teammate__row .teammate__label {
    grid-column: 1 / -1;
    font-family: var(--ff-monospace);
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--gold);
    opacity: .85;
}

.teammate__row input {
    background: none;
    border: none;
    border-bottom: 2px solid rgb(from var(--cream) r g b / .3);
    font-family: inherit;
    font-size: 1rem;
    color: var(--cream);
    padding: .5rem .1rem;
}

.teammate__row input:focus-visible {
    outline: none;
    border-color: var(--gold);
}

/* Review slide */
.review__wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: .1rem;
    text-align: left;
    max-height: 40vh;
    overflow-y: auto;
}

.review__row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: .6rem 0;
    border-bottom: 1px solid rgb(from var(--cream) r g b / .15);
    font-size: .95rem;
}

.review__row dt {
    font-family: var(--ff-monospace);
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    opacity: .6;
}

.review__row dd {
    margin: 0;
    font-weight: 600;
    text-align: right;
}

/* Wider variant of .slide__inner for steps that need a two-column layout
   (module + social card, payment account + fields) rather than a single
   centered question. */
.slide__inner--wide {
    max-width: 56rem;
}

/* Social opt-in secondary card, next to the module choices */
.module__layout {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: left;
}

@media (width >=900px) {
    .module__layout {
        flex-direction: row;
        align-items: flex-start;
    }

    .module__layout .slide__choices {
        flex: 1.6;
    }

    .module__layout .social__card {
        flex: 1;
    }
}

.social__card {
    border: 2px solid rgb(from var(--cream) r g b / .3);
    background-color: rgb(from var(--gold) r g b / .07);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.social__card-label {
    font-family: var(--ff-monospace);
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--gold);
}

.social__checkbox {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
    cursor: pointer;
    font-size: .9rem;
    line-height: 1.45;
    opacity: .9;
}

.social__checkbox input {
    margin-top: .2rem;
    width: 1.15rem;
    height: 1.15rem;
    accent-color: var(--gold);
    flex-shrink: 0;
    cursor: pointer;
}

/* Payment step */
.payment__layout {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: left;
}

@media (width >=900px) {
    .payment__layout {
        flex-direction: row;
    }

    .payment__account,
    .payment__fields {
        flex: 1;
    }
}

.payment__account {
    border: 2px solid rgb(from var(--cream) r g b / .3);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.payment__account-label {
    font-family: var(--ff-monospace);
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--gold);
}

.payment__account-note {
    font-size: .9rem;
    opacity: .85;
    line-height: 1.55;
}

.payment__fields {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.payment__fields .field {
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.payment__fields .field.invalid {
    outline: 2px solid var(--maroon);
    outline-offset: 4px;
}

.payment__fields label {
    font-family: var(--ff-monospace);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    opacity: .8;
}

.payment__fields input[type="text"] {
    border: 2px solid rgb(from var(--cream) r g b / .3);
    background: none;
    color: var(--cream);
    padding: .75rem .9rem;
    font-family: inherit;
    font-size: 1rem;
}

.payment__fields input[type="text"]:focus-visible {
    outline: none;
    border-color: var(--gold);
}

.payment__fields input[type="text"].invalid {
    border-color: var(--maroon);
}

.payment__fields input[type="file"] {
    font-family: var(--ff-monospace);
    font-size: .8rem;
    color: rgb(from var(--cream) r g b / .8);
    max-width: 100%;
}

.payment__fields input[type="file"]::file-selector-button {
    border: 2px solid var(--cream);
    background: transparent;
    color: var(--cream);
    padding: .5rem 1rem;
    font-family: var(--ff-monospace);
    text-transform: uppercase;
    font-size: .7rem;
    letter-spacing: .04em;
    cursor: pointer;
    margin-right: .75rem;
}

.field__hint {
    font-family: var(--ff-monospace);
    font-size: .65rem;
    opacity: .5;
    text-transform: uppercase;
    letter-spacing: .03em;
}

/* Success slide */
.slide--success h1 {
    font-size: clamp(2rem, 6cqw, 3.5rem);
}

.slide--success p {
    max-width: 40ch;
    opacity: .85;
}

.status-badge {
    display: inline-block;
    margin-top: .5rem;
    border: 2px solid var(--gold);
    color: var(--gold);
    font-family: var(--ff-monospace);
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: .5rem 1rem;
}

@media (prefers-reduced-motion: reduce) {

    .slide,
    .timeline__step .dot,
    .timeline__step .label,
    .timeline__line,
    .slide__continue,
    .slide__choice label {
        transition: none;
    }

    .slide.shake,
    .slide.active .slide__eyebrow,
    .slide.active h1,
    .slide.active .slide__input,
    .slide.active .slide__choices,
    .slide.active .teammate__grid,
    .slide.active .review__wrapper,
    .slide.active .slide__error,
    .slide.active .slide__actions,
    .slide__choice input:checked+label,
    .register-app__brand,
    .register-app__timeline,
    .register-app__utility {
        animation: none;
    }
}