/* ═══════════════════════════════════════════════════════════════
   DYLAN BEDFORD — Screen Arts Portfolio
   Design: Cobalt · White · Burgundy Velvet
═══════════════════════════════════════════════════════════════ */

/* ─── Variables ─────────────────────────────────────────── */
:root {
    --cobalt:        #0047AB;
    --cobalt-dark:   #00348A;
    --cobalt-deep:   #001F5C;
    --cobalt-light:  #1560CC;
    --velvet-deep:   #2A0610;
    --velvet-mid:    #5A0D1E;
    --velvet-rich:   #7A1228;
    --velvet-sheen:  #9B1A38;
    --gold:          #D4AF37;
    --gold-light:    #F0CC5A;
    --white:         #FFFFFF;
    --white-soft:    rgba(255,255,255,0.88);
    --white-muted:   rgba(255,255,255,0.60);
    --white-faint:   rgba(255,255,255,0.12);
    --white-ghost:   rgba(255,255,255,0.06);
    --film-dark:     #0D0D0D;
    --section-alt:   rgba(0,0,0,0.22);
    --nav-h:         64px;
    --radius:        4px;
    --transition:    0.35s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Rubik', 'Helvetica Neue', sans-serif;
    font-weight: 300;
    color: var(--white);
    background: var(--cobalt-deep);
    background: radial-gradient(ellipse 120% 80% at 50% -10%,
                    var(--cobalt-light) 0%,
                    var(--cobalt) 35%,
                    var(--cobalt-dark) 60%,
                    var(--cobalt-deep) 100%);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
address { font-style: normal; }
button { cursor: pointer; border: none; background: none; }
img { display: block; max-width: 100%; }

/* ─── Typography ────────────────────────────────────────── */
h1, h2, h3,
.hero-title,
.gallery-title,
.section-title,
.footer-name,
.nav-brand,
.curtain-name {
    font-family: 'Rubik', sans-serif;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.1;
}

/* ═══════════════════════════════════════════════════════════════
   VELVET CURTAIN
═══════════════════════════════════════════════════════════════ */
#curtain-container {
    position: fixed;
    inset: 0;
    z-index: 9000;
    display: flex;
    cursor: pointer;
    overflow: hidden;
}

#curtain-rod {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    z-index: 10;
    background: linear-gradient(to bottom,
        var(--gold-light)  0%,
        var(--gold)        30%,
        #A88820            55%,
        var(--gold)        75%,
        var(--gold-light)  100%);
    box-shadow:
        0 2px 8px rgba(0,0,0,0.7),
        inset 0 1px 1px rgba(255,255,255,0.4);
}

/* Ring hooks along the rod */
#curtain-rod::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 12px;
    background: repeating-linear-gradient(
        to right,
        transparent   0px,
        transparent   20px,
        rgba(0,0,0,0.5) 20px,
        rgba(0,0,0,0.5) 22px,
        rgba(255,255,255,0.15) 22px,
        rgba(255,255,255,0.15) 24px,
        rgba(0,0,0,0.5) 24px,
        rgba(0,0,0,0.5) 26px,
        transparent   26px,
        transparent   46px
    );
    border-radius: 0 0 4px 4px;
}

/* ── Velvet panel ─────────────────────────────────── */
.curtain-panel {
    width: 50%;
    height: 100%;
    transition: transform 1.9s cubic-bezier(0.77, 0, 0.175, 1);
    will-change: transform;

    /* Layered gradients for velvet depth */
    background:
        /* Sheen — highlight on inner edge */
        linear-gradient(to right,
            rgba(255,255,255,0.00) 0%,
            rgba(255,255,255,0.04) 60%,
            rgba(255,255,255,0.00) 100%),
        /* Top hang-shadow */
        linear-gradient(to bottom,
            rgba(0,0,0,0.60) 0%,
            rgba(0,0,0,0.10) 18%,
            transparent      40%),
        /* Fold texture — dark and light stripes */
        repeating-linear-gradient(
            to right,
            rgba(0,0,0,0.45)   0%,
            rgba(0,0,0,0.00)   2.5%,
            rgba(255,255,255,0.04) 5%,
            rgba(255,255,255,0.00) 7.5%,
            rgba(0,0,0,0.35)  10%,
            rgba(0,0,0,0.00)  12.5%,
            rgba(255,255,255,0.03) 15%,
            rgba(255,255,255,0.00) 17.5%,
            rgba(0,0,0,0.40)  20%
        ),
        /* Base velvet colour */
        linear-gradient(165deg,
            var(--velvet-deep)  0%,
            var(--velvet-rich)  35%,
            var(--velvet-mid)   65%,
            var(--velvet-deep) 100%);
}

#curtain-left {
    box-shadow: inset -12px 0 40px rgba(0,0,0,0.55);
}
#curtain-right {
    box-shadow: inset  12px 0 40px rgba(0,0,0,0.55);
}

/* ── Opening animation ───────────────────────────── */
#curtain-container.is-open #curtain-left  { transform: translateX(-100%); }
#curtain-container.is-open #curtain-right { transform: translateX(100%); }
#curtain-container.is-open #curtain-center { opacity: 0; pointer-events: none; }

#curtain-container.is-gone {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

/* ── Curtain centre text ─────────────────────────── */
#curtain-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 5;
    pointer-events: none;
    transition: opacity 0.6s ease;
    width: 90%;
    max-width: 480px;
}

.curtain-name {
    font-size: clamp(1.8rem, 5vw, 3rem);
    letter-spacing: 0.22em;
    color: var(--white);
    text-shadow: 0 2px 20px rgba(0,0,0,0.8);
    margin-bottom: 0.5rem;
}

.curtain-rule {
    width: 60px;
    height: 1px;
    background: var(--gold);
    margin: 0.8rem auto;
    box-shadow: 0 0 8px var(--gold);
}

.curtain-subtitle {
    font-family: 'Rubik', sans-serif;
    font-weight: 300;
    font-size: clamp(0.85rem, 2.5vw, 1.1rem);
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--white-soft);
    margin-bottom: 0.3rem;
}

.curtain-year {
    font-family: 'Rubik', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: var(--gold);
    margin-bottom: 2rem;
}

.curtain-cta {
    font-family: 'Rubik', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--white-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    animation: pulse-cta 2.2s ease-in-out infinite;
}

.cta-ring {
    font-size: 0.55rem;
    color: var(--gold);
}

@keyframes pulse-cta {
    0%, 100% { opacity: 0.65; }
    50%       { opacity: 1.00; }
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
═══════════════════════════════════════════════════════════════ */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 800;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(0, 25, 80, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--white-faint);
    transition: background var(--transition);
}

.nav-brand {
    font-size: 0.9rem;
    letter-spacing: 0.22em;
    color: var(--white);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 2.4rem;
}

.nav-link {
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--white-muted);
    transition: color var(--transition);
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}

.nav-link:hover,
.nav-link.nav-active {
    color: var(--white);
    border-bottom-color: var(--gold);
}

.nav-gallery {
    background: var(--white-faint);
    border: 1px solid var(--white-faint);
    padding: 0.4rem 1rem;
    border-radius: var(--radius);
    letter-spacing: 0.14em;
    border-bottom: none;
}

.nav-gallery:hover {
    background: var(--white-ghost);
    border-color: var(--white-muted);
    border-bottom: none;
}

/* Hamburger (mobile) */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--white);
    transition: var(--transition);
}

/* ═══════════════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════════════ */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--nav-h) + 2rem) 2rem 4rem;
    position: relative;
}

.hero-eyebrow {
    font-size: 0.72rem;
    letter-spacing: 0.38em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 7rem);
    letter-spacing: 0.18em;
    line-height: 1.05;
    color: var(--white);
    text-shadow: 0 4px 40px rgba(0,0,0,0.3);
    margin-bottom: 1.4rem;
}

.hero-sub {
    font-size: clamp(0.75rem, 2vw, 0.9rem);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--white-muted);
}

.hero-scroll {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
}

.scroll-label {
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--white-muted);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--white-muted), transparent);
    animation: scroll-drop 1.8s ease-in-out infinite;
}

@keyframes scroll-drop {
    0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
    40%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
    80%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
    100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION SHARED
═══════════════════════════════════════════════════════════════ */
section:not(#hero) {
    padding: 6rem 2rem;
}

#letter { background: var(--section-alt); }
#story  { padding-bottom: 7rem; }

.section-inner {
    max-width: 960px;
    margin: 0 auto;
}

.section-num {
    font-family: 'Rubik', sans-serif;
    font-size: 0.65rem;
    letter-spacing: 0.4em;
    color: var(--gold);
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    letter-spacing: 0.14em;
    color: var(--white);
    margin-bottom: 0.9rem;
}

.section-rule {
    width: 48px;
    height: 2px;
    background: var(--gold);
    margin-bottom: 3rem;
}

/* ═══════════════════════════════════════════════════════════════
   LETTER OF INTENT
═══════════════════════════════════════════════════════════════ */
.letter-body {
    background: rgba(0,0,0,0.18);
    border: 1px solid var(--white-faint);
    border-radius: var(--radius);
    padding: 3rem 3.5rem;
    line-height: 1.9;
    font-size: 1.0rem;
    font-weight: 300;
    color: var(--white-soft);
}

.letter-body p + p { margin-top: 1.4em; }

.letter-sign {
    margin-top: 2.2em;
    font-weight: 400;
    color: var(--white-soft);
}

/* ═══════════════════════════════════════════════════════════════
   CAROUSEL
═══════════════════════════════════════════════════════════════ */
.carousel-wrap { margin-top: 1rem; }

/* ── Filmstrip border ─── */
.filmstrip {
    height: 28px;
    /* transparent holes let cobalt page-background show through */
    background: repeating-linear-gradient(
        to right,
        var(--film-dark)  0px,
        var(--film-dark)  6px,
        transparent       6px,
        transparent      20px,
        var(--film-dark) 20px,
        var(--film-dark) 26px
    );
    background-size: 26px 100%;
}

.filmstrip-top    { border-radius: var(--radius) var(--radius) 0 0; }
.filmstrip-bottom { border-radius: 0 0 var(--radius) var(--radius); }

/* ── Stage ─── */
.carousel-stage {
    display: flex;
    align-items: center;
    background: rgba(0,0,0,0.50);
    gap: 0;
}

.carousel-viewport {
    flex: 1;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 10;
    background: rgba(0,0,0,0.6);
}

.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.55s cubic-bezier(0.645, 0.045, 0.355, 1.000);
    will-change: transform;
}

.carousel-slide {
    flex: 0 0 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.6);
    position: relative;
}

.carousel-slide img {
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/* Placeholder for missing images */
.slide-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #001040, #002060);
    font-family: 'Rubik', sans-serif;
    font-size: 3rem;
    color: var(--white-faint);
    letter-spacing: 0.2em;
}

/* ── Nav buttons ─── */
.carousel-btn {
    flex: 0 0 64px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.35);
    color: var(--white-muted);
    transition: background var(--transition), color var(--transition);
    aspect-ratio: unset;
    min-height: 80px;
}

.carousel-btn:hover {
    background: rgba(0,0,0,0.65);
    color: var(--white);
}

.btn-chevron {
    font-size: 3rem;
    line-height: 1;
    display: block;
    user-select: none;
}

/* ── Meta (counter + dots) ─── */
.carousel-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0.5rem 0.5rem;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.carousel-counter {
    font-family: 'Rubik', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.28em;
    color: var(--gold);
}

.carousel-dots {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
    max-width: 70%;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--white-faint);
    border: 1px solid var(--white-muted);
    cursor: pointer;
    transition: background var(--transition), transform 0.2s ease;
}

.dot.active {
    background: var(--gold);
    border-color: var(--gold);
    transform: scale(1.3);
}

.dot:hover { background: var(--white-muted); }

/* ── Gallery CTA row ─── */
.gallery-cta-row {
    margin-top: 2.5rem;
    text-align: center;
}

.btn-outline {
    display: inline-block;
    font-family: 'Rubik', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white-soft);
    border: 1px solid var(--white-faint);
    padding: 0.75rem 2rem;
    border-radius: var(--radius);
    transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold);
    background: rgba(212,175,55,0.07);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════ */
#footer {
    background: var(--cobalt-deep);
    border-top: 1px solid var(--white-faint);
    padding: 3.5rem 2rem;
    text-align: center;
}

.footer-inner { max-width: 680px; margin: 0 auto; }

.footer-name {
    font-size: 1.1rem;
    letter-spacing: 0.28em;
    color: var(--white);
    margin-bottom: 0.8rem;
}

.footer-rule {
    width: 40px;
    height: 1px;
    background: var(--gold);
    margin: 0 auto 1.2rem;
}

.footer-contact {
    font-size: 0.82rem;
    color: var(--white-muted);
    letter-spacing: 0.06em;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.footer-contact a {
    color: var(--white-muted);
    transition: color var(--transition);
}
.footer-contact a:hover { color: var(--white); }

.footer-sep { color: var(--gold); }

.footer-tagline {
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--white-faint);
}

/* ═══════════════════════════════════════════════════════════════
   GALLERY PAGE
═══════════════════════════════════════════════════════════════ */
body.gallery-page #main-content { opacity: 1; visibility: visible; }

.gallery-header {
    padding: calc(var(--nav-h) + 3rem) 2rem 2rem;
    text-align: center;
    position: relative;
}

.back-link {
    position: absolute;
    top: calc(var(--nav-h) + 1.2rem);
    left: 2rem;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--white-muted);
    transition: color var(--transition);
}
.back-link:hover { color: var(--white); }

.gallery-header-inner { margin-top: 1rem; }
.gallery-title { font-size: clamp(1.8rem, 5vw, 3rem); letter-spacing: 0.14em; }

.gallery-subtitle {
    font-size: 0.78rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--white-muted);
    margin-top: 0.8rem;
}

.gallery-main {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* ── Gallery cell ─── */
.gallery-cell {
    background: rgba(0,0,0,0.30);
    border: 1px solid var(--white-faint);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: border-color var(--transition), transform 0.25s ease, box-shadow 0.25s ease;
}

.gallery-cell:hover {
    border-color: var(--gold);
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.gallery-img-wrap {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-cell:hover .gallery-img-wrap img {
    transform: scale(1.04);
}

.gallery-cell-footer {
    padding: 0.55rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--white-faint);
}

.gallery-scene-num {
    font-family: 'Rubik', sans-serif;
    font-size: 0.65rem;
    letter-spacing: 0.22em;
    color: var(--gold);
}

.gallery-expand-icon {
    font-size: 0.75rem;
    color: var(--white-faint);
    transition: color var(--transition);
}

.gallery-cell:hover .gallery-expand-icon { color: var(--white-muted); }

/* ── Placeholder for missing gallery images ─── */
.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Rubik', sans-serif;
    font-size: 2rem;
    color: var(--white-faint);
}

/* ═══════════════════════════════════════════════════════════════
   LIGHTBOX
═══════════════════════════════════════════════════════════════ */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9500;
    background: rgba(0,0,0,0.94);
    display: none;
    align-items: center;
    justify-content: center;
}

.lightbox.is-open { display: flex; }

.lightbox-img-wrap {
    max-width: min(90vw, 1100px);
    max-height: 85vh;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img-wrap img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border: 1px solid var(--white-faint);
}

.lightbox-caption {
    margin-top: 0.8rem;
    font-family: 'Rubik', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.28em;
    color: var(--gold);
    text-align: center;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: fixed;
    color: var(--white-muted);
    font-size: 2.5rem;
    line-height: 1;
    transition: color var(--transition);
    padding: 0.5rem;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { color: var(--white); }

.lightbox-close { top: 1.2rem; right: 1.5rem; font-size: 2rem; }
.lightbox-prev  { left: 1rem;  top: 50%; transform: translateY(-50%); font-size: 3.5rem; }
.lightbox-next  { right: 1rem; top: 50%; transform: translateY(-50%); font-size: 3.5rem; }

/* ═══════════════════════════════════════════════════════════════
   MAIN CONTENT (fade in after curtain)
═══════════════════════════════════════════════════════════════ */
#main-content {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.7s ease 0.2s;
}

#main-content.is-visible {
    opacity: 1;
    visibility: visible;
}

/* Gallery page — always visible */
body.gallery-page #main-content {
    opacity: 1;
    visibility: visible;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {

    /* Nav */
    .nav-toggle { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-h);
        left: 0; right: 0;
        flex-direction: column;
        background: rgba(0,20,70,0.97);
        padding: 1.5rem 2rem;
        gap: 1.4rem;
        border-bottom: 1px solid var(--white-faint);
    }

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

    /* Hero */
    .hero-title { line-height: 1.08; }

    /* Letter */
    .letter-body { padding: 2rem 1.5rem; font-size: 0.95rem; }

    /* Carousel buttons */
    .carousel-btn { flex: 0 0 44px; }
    .btn-chevron  { font-size: 2.2rem; }

    /* Gallery grid */
    .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }

    /* Footer contact — stack on mobile */
    .footer-sep { display: none; }
    .footer-contact { display: flex; flex-direction: column; gap: 0.3rem; }
    .footer-contact span,
    .footer-contact a { display: block; }

    /* Lightbox */
    .lightbox-prev { left: 0.25rem; font-size: 2.5rem; }
    .lightbox-next { right: 0.25rem; font-size: 2.5rem; }
}

@media (max-width: 480px) {
    .gallery-grid { grid-template-columns: 1fr; }
    section:not(#hero) { padding: 4rem 1.2rem; }
    .carousel-btn { flex: 0 0 36px; }
}
#curtain-left, #curtain-right {
    pointer-events: none;
}