/* ══════════════════════════════════════════════
   project.css — Noble Fir Studio Case Study Page
   Shared template for all project / case study pages
══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Jost:wght@200;300;400&family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400&display=swap');

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

:root {
    --nf-bg:      #0A0A0A;
    --nf-fg:      #F5F5F5;
    --nf-red:     #E8001E;
    --nf-gray:    #555555;
    --nf-neutral: #888888;
    --nf-border:  rgba(245, 245, 245, 0.08);
    --nf-card:    #111111;
}

html { overflow-x: clip; scroll-behavior: smooth; }
body {
    background: var(--nf-bg);
    color: var(--nf-fg);
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    overflow-x: clip;
}

/* ── Selection ── */
::selection { background: var(--nf-red); color: #fff; }

/* ══════════════════════════════════════════════
   INTRO + STICKY HERO REVEAL
   .cs-reveal-wrap scopes the sticky so it
   un-sticks when the wrapper clears the viewport.
══════════════════════════════════════════════ */
.cs-reveal-wrap {
    position: relative;
}

/* Intro text lives above the sticky image */
.cs-intro {
    position: relative;
    z-index: 2;
    min-height: 30vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 0 7% 1.5rem;
    background: var(--nf-bg);
}

.cs-intro__title {
    font-family: "Jost", sans-serif;
    font-weight: 200;
    font-size: clamp(2.6rem, 6vw, 5rem);
    line-height: 0.95;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    color: var(--nf-fg);
    margin-bottom: 1.5rem;
}

.cs-intro__title em {
    color: var(--nf-red);
    font-style: normal;
}

.cs-intro__desc {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.5vw, 1.15rem);
    line-height: 1.65;
    color: var(--nf-neutral);
    max-width: 48ch;
}

/* Sticky hero image window */
.cs-hero-window {
    position: sticky;
    top: 0;
    z-index: 1;
    width: 100%;
    height: 40vh;
    overflow: hidden;
}

.cs-hero-img {
    width: 100%;
    height: 140%;            /* taller than viewport — scroll reveals top */
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    transform: translateY(0);
    will-change: transform;
}

/* ══════════════════════════════════════════════
   PROJECT DETAILS CARD
══════════════════════════════════════════════ */
.cs-details {
    position: relative;
    z-index: 3;
    padding: 0 7% 10vh;
    margin-top: -8vh;        /* peek over the hero image */
}

.cs-details__card {
    background: var(--nf-bg);
    border-radius: 2px;
    padding: clamp(2.5rem, 5vw, 5rem) clamp(2rem, 5vw, 5rem);
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem 6%;
    max-width: 720px;
    margin: 0 auto;
}

.cs-details__block {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.cs-details__block--meta {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--nf-border);
}

.cs-details__label {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--nf-gray);
    display: block;
}

.cs-details__body {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(0.9rem, 1.2vw, 1.05rem);
    line-height: 1.7;
    color: var(--nf-neutral);
}

.cs-details__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.cs-details__list li {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(0.85rem, 1.1vw, 1rem);
    line-height: 1.55;
    color: var(--nf-neutral);
    padding-left: 1.2rem;
    position: relative;
}

.cs-details__list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--nf-red);
    font-size: 0.7rem;
    top: 0.15em;
}

.cs-details__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.cs-tag {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--nf-fg);
    border: 1px solid var(--nf-border);
    padding: 0.3em 0.75em;
    border-radius: 1px;
}

/* ══════════════════════════════════════════════
   SECTION LABEL (shared)
══════════════════════════════════════════════ */
.cs-section-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--nf-gray);
    display: block;
    margin-bottom: 2rem;
}

/* ══════════════════════════════════════════════
   DESKTOP SCREENSHOT SLIDER
══════════════════════════════════════════════ */
.cs-desktop-slider {
    width: 100%;
    height: 100svh;
    padding: 8vh 0 0 40vw;
}

.cs-slider {
    overflow: hidden;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
}

.cs-slider.is-dragging {
    cursor: grabbing;
}

.cs-slider__track {
    display: flex;
    gap: 2.5%;
    will-change: transform;
    transition: transform 0s;
}

.cs-slide {
    flex: 0 0 80%;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.cs-slide__browser {
    background: #111;
    border: 1px solid var(--nf-border);
    border-radius: 4px 4px 2px 2px;
    overflow: hidden;
}

.cs-slide__browser-bar {
    background: #1a1a1a;
    border-bottom: 1px solid var(--nf-border);
    padding: 0.6rem 0.9rem;
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

.cs-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(245, 245, 245, 0.12);
    display: inline-block;
}

.cs-slide__screen {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-color: #1a1a1a;
}

.cs-slide__num {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.55rem;
    letter-spacing: 0.2em;
    color: var(--nf-gray);
    text-align: right;
}

/* ══════════════════════════════════════════════
   MOBILE MOCKUP SECTION
══════════════════════════════════════════════ */
.cs-mobile {
    width: 100%;
    height: 100svh;
    padding: 10vh 7%;
}

.cs-mobile__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6%;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

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

.cs-mobile__hed {
    font-family: "Jost", sans-serif;
    font-weight: 200;
    font-size: clamp(2.5rem, 4.5vw, 4.5rem);
    line-height: 0.95;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    color: var(--nf-fg);
}

.cs-mobile__hed em {
    color: var(--nf-red);
    font-style: normal;
}

.cs-mobile__body {
    font-family: 'Inter', sans-serif;
    font-weight: 300;
    font-size: clamp(0.9rem, 1.2vw, 1.05rem);
    line-height: 1.7;
    color: var(--nf-neutral);
    max-width: 42ch;
}

/* Phone device */
.cs-mobile__device-wrap {
    display: flex;
    justify-content: center;
}

.cs-mobile__device {
    position: relative;
    width: clamp(200px, 28vw, 320px);
}

.cs-phone-frame {
    display: block;
    width: 100%;
    height: auto;
    position: relative;
    z-index: 1;
    pointer-events: none;
}

/* The swipeable screen sits above the SVG frame, clipped to look inside it */
.cs-phone-screen {
    position: absolute;
    top: 3%;
    left: 4%;
    width: 92%;
    height: 90%;
    border-radius: 28px;
    overflow: hidden;
    z-index: 2;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
}

.cs-phone-screen.is-dragging {
    cursor: grabbing;
}

.cs-phone-track {
    display: flex;
    height: 100%;
    will-change: transform;
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.cs-phone-slide {
    flex: 0 0 100%;
    height: 100%;
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-color: #1a1a1a;
}

.cs-phone-dots {
    position: absolute;
    bottom: -1.8rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 3;
}

.cs-phone-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--nf-gray);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s, transform 0.2s;
}

.cs-phone-dot.is-active {
    background: var(--nf-red);
    transform: scale(1.3);
}

/* ══════════════════════════════════════════════
   BACK LINK
══════════════════════════════════════════════ */
.cs-back {
    padding: 4vh 0 10vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ══════════════════════════════════════════════
   INT-LINK (matches global style)
══════════════════════════════════════════════ */
.int-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6em;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--nf-fg);
    border-bottom: 1px solid rgba(245, 245, 245, 0.2);
    padding-bottom: 0.3em;
    transition: color 0.2s, border-color 0.2s;
}

.int-link:hover {
    color: var(--nf-red);
    border-color: var(--nf-red);
}

/* ══════════════════════════════════════════════
   FOOTER (mirrors shared footer styles)
══════════════════════════════════════════════ */
.nf-footer {
    position: relative;
    border-top: 1px solid var(--nf-border);
    padding: 6vh 7%;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    overflow: hidden;
}

.nf-footer-bg-letter {
    position: absolute;
    font-family: "Jost", sans-serif;
    font-weight: 200;
    font-size: clamp(12rem, 25vw, 22rem);
    line-height: 1;
    color: rgba(245, 245, 245, 0.03);
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    user-select: none;
    letter-spacing: -0.06em;
}

.nf-left  { left: -2%; }
.nf-right { right: -2%; }

.nf-footer-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 2.5rem;
    justify-content: center;
}

.nf-footer-nav a {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--nf-neutral);
    transition: color 0.2s;
}

.nf-footer-nav a:hover { color: var(--nf-fg); }

.nf-contact-btn a {
    color: var(--nf-red) !important;
}

.nf-footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.nf-copy {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.55rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--nf-gray);
}

.nf-social {
    display: flex;
    gap: 1.25rem;
}

.nf-social-icon {
    color: var(--nf-gray);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color 0.2s;
}

.nf-social-icon:hover { color: var(--nf-fg); }

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

.nf-legal a {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.55rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--nf-gray);
    text-decoration: none;
    transition: color 0.2s;
}

.nf-legal a:hover { color: var(--nf-fg); }
.nf-sep { color: var(--nf-gray); font-size: 0.5rem; }

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 900px) {
    .cs-details__card {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .cs-details__block--meta {
        grid-column: 1;
        grid-template-columns: 1fr 1fr;
    }

    .cs-mobile__inner {
        grid-template-columns: 1fr;
        gap: 5rem;
    }

    .cs-mobile__copy { order: 1; }
    .cs-mobile__device-wrap { order: 0; }

    .cs-mobile__device {
        width: clamp(180px, 50vw, 260px);
    }

    .cs-slide { flex: 0 0 90%; }
}

@media (max-width: 600px) {
    .cs-intro { padding: 0 5% 7vh; }
    .cs-details { padding: 0 5% 8vh; }
    .cs-desktop-slider { padding: 6vh 5% 0; }
    .cs-mobile { padding: 8vh 5%; }
    .cs-back { padding: 4vh 0 8vh; }

    .cs-details__block--meta {
        grid-template-columns: 1fr;
    }

    .cs-slide { flex: 0 0 94%; }

    .nf-footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}