/* ======================================================================
   APNASCHOOL CASE STUDY (apnaschool.css)
   ======================================================================

   Loaded by: case-studies/apnaschool/apnaschool.html

   HOW TO EDIT
   - Colors are in section 01 (:root). Font = Inter, set in ../portfolio-type.css.
   - Back link + footer come from ../portfolio-shell.css.
   - Each section starts with a big "=====" banner. Use Ctrl/Cmd + F
     and search the section number (e.g. "03.") to jump to it.

   TABLE OF CONTENTS
   01. Tokens + Base
   02. Animated Cover
   03. Title + Statement + Meta
   04. Overview + Numbers
   05. Approach
   06. Key Screens
   07. Design System
   08. Deliverables + All Pages
   09. Mobile
   10. Reduced Motion
   ====================================================================== */


/* ======================================================================
   01. TOKENS + BASE
   ====================================================================== */
:root {
  --teal: #00debd;
  --teal-d: #00a58c;
  --ink: #101212;
  --sky: #ddecf6;
  --paper: #ffffff;
  --soft: #f6f7f8;
  --line: #e3e5e8;
  --mute: #6e7275;
  --sans: "Inter", Arial, sans-serif;
  --mono: "Inter", ui-monospace, monospace;
  --gutter: clamp(20px, 5.5vw, 110px);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

img,
video {
  display: block;
  max-width: 100%;
}

/* Media is for viewing only: no clicks, drags or long-press menus */
img,
video,
picture {
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.wrap {
  padding-inline: var(--gutter);
}

.mono {
  font: 400 clamp(10px, 0.75vw, 13px)/1.3 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition:
      opacity 0.9s ease,
      transform 1.1s var(--ease);
  }

  .js [data-reveal].is-in {
    opacity: 1;
    transform: none;
  }
}


/* ======================================================================
   02. ANIMATED COVER
   Full width, first thing on the page
   ====================================================================== */
.cover {
  background: var(--teal);
}

.cover .media {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 100svh;
  object-fit: cover;
}


/* ======================================================================
   03. TITLE + STATEMENT + META
   ====================================================================== */
.intro {
  padding-top: clamp(60px, 7vw, 120px);
  padding-bottom: clamp(70px, 8vw, 140px);
}

.kick {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin: 0 0 clamp(36px, 4.5vw, 80px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--mute);
}

.title {
  margin: 0 0 clamp(30px, 3.6vw, 64px);
  font: 600 clamp(52px, 8.4vw, 160px)/0.92 var(--sans);
  letter-spacing: -0.05em;
}

.statement {
  max-width: 28ch;
  margin: 0;
  font: 500 clamp(26px, 3.4vw, 64px)/1.12 var(--sans);
  letter-spacing: -0.035em;
}

.statement .w {
  color: #cdd1d4;
  transition: color 0.5s ease;
}

.statement .w.is-lit {
  color: var(--ink);
}

.statement strong {
  font-weight: 600;
}

.statement strong .w.is-lit {
  color: var(--teal-d);
}

.meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: clamp(56px, 6vw, 110px) 0 0;
  border-top: 1px solid var(--line);
}

.meta div {
  padding: 22px 20px 0 0;
}

.meta dt {
  margin-bottom: 12px;
  color: var(--mute);
  font: 400 11px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.meta dd {
  margin: 0;
  font: 500 clamp(16px, 1.25vw, 22px)/1.3 var(--sans);
}

/* Section titles, shared */
.sec-title {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin: 0;
  font: 600 clamp(32px, 3.4vw, 64px)/1 var(--sans);
  letter-spacing: -0.035em;
}

.sec-title .mono {
  color: var(--mute);
  font-weight: 400;
  letter-spacing: 0.14em;
}

.sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 30px;
  margin-bottom: clamp(36px, 4vw, 70px);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.sec-head p {
  margin: 0;
  color: var(--mute);
  font: 400 clamp(14px, 1.05vw, 18px)/1.4 var(--sans);
}


/* ======================================================================
   04. OVERVIEW + NUMBERS
   ====================================================================== */
.overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.1fr);
  gap: clamp(30px, 5vw, 100px);
  padding-top: clamp(30px, 3vw, 60px);
  padding-bottom: clamp(90px, 9vw, 160px);
}

.overview .sec-title {
  position: sticky;
  top: 60px;
  align-self: start;
}

.ov-body > p {
  max-width: 62ch;
  margin: 0 0 1.1em;
  color: #4a4e51;
  font: 400 clamp(16px, 1.25vw, 22px)/1.6 var(--sans);
}

.ov-body > p.lead {
  max-width: 34ch;
  color: var(--ink);
  font: 400 clamp(22px, 2vw, 36px)/1.3 var(--sans);
  letter-spacing: -0.02em;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 2.4vw, 40px);
  margin-top: clamp(40px, 4vw, 70px);
}

.facts > div {
  padding-top: 18px;
  border-top: 2px solid var(--ink);
}

.facts h3 {
  margin: 0 0 14px;
  color: var(--mute);
  font-weight: 400;
}

.facts p {
  margin: 0;
  font: 500 clamp(15px, 1.15vw, 20px)/1.45 var(--sans);
}

.numbers {
  background: var(--sky);
}

.num-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.num-grid > div {
  padding: clamp(44px, 4.4vw, 80px) clamp(14px, 1.6vw, 30px);
  border-left: 1px solid rgb(16 18 18 / 12%);
}

.num-grid > div:first-child {
  border-left: 0;
  padding-left: 0;
}

.num-grid b {
  display: block;
  font: 600 clamp(60px, 6.6vw, 128px)/0.9 var(--sans);
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}

.num-grid p {
  max-width: 26ch;
  margin: 18px 0 0;
  color: #3e4245;
  font: 400 clamp(14px, 1vw, 17px)/1.5 var(--sans);
}


/* ======================================================================
   05. APPROACH
   Dark band, six steps shown at once
   ====================================================================== */
.approach {
  background: var(--ink);
  color: #fff;
}

.approach-in {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr);
  gap: clamp(30px, 5vw, 100px);
  padding-top: clamp(100px, 10vw, 180px);
  padding-bottom: clamp(100px, 10vw, 180px);
}

.ap-left {
  position: sticky;
  top: 60px;
  align-self: start;
}

.ap-left p {
  max-width: 36ch;
  margin: 26px 0 0;
  color: #a7abae;
  font: 400 clamp(15px, 1.1vw, 19px)/1.6 var(--sans);
}

.approach .sec-title .mono {
  color: var(--teal);
}

.steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(24px, 3vw, 60px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  padding: clamp(22px, 2vw, 34px) 0 clamp(26px, 2.4vw, 40px);
  border-top: 1px solid #2a2e2f;
}

.steps li:nth-child(even) {
  transition-delay: 0.08s;
}

.steps .mono {
  color: var(--teal);
}

.steps h3 {
  margin: 14px 0 12px;
  font: 500 clamp(24px, 2.3vw, 42px)/1 var(--sans);
  letter-spacing: -0.03em;
}

.steps p {
  max-width: 34ch;
  margin: 0;
  color: #a7abae;
  font: 400 clamp(15px, 1.05vw, 18px)/1.55 var(--sans);
}


/* ======================================================================
   06. KEY SCREENS
   Still images, top of each page
   ====================================================================== */
.screens {
  padding-top: clamp(100px, 10vw, 180px);
  padding-bottom: clamp(100px, 10vw, 180px);
}

.shot {
  margin: 0;
}

.shot .frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-radius: clamp(12px, 1vw, 18px);
  background: var(--soft);
  box-shadow:
    0 0 0 1px var(--line),
    0 30px 60px -40px rgb(16 18 18 / 35%);
}

.shot .frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.shot--tall .frame {
  aspect-ratio: auto;
  height: 100%;
  min-height: 100%;
}

.shot--tall .frame img {
  position: absolute;
  inset: 0;
}

.shot--video .frame {
  aspect-ratio: 16 / 9;
}

.shot--video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.shot figcaption {
  display: grid;
  grid-template-columns: minmax(120px, 0.3fr) 1fr;
  gap: 20px;
  padding: 16px 2px 0;
  font: 400 clamp(13px, 0.95vw, 16px)/1.5 var(--sans);
}

.shot figcaption b {
  font-weight: 600;
}

.shot figcaption span {
  color: var(--mute);
}

.shot--wide {
  margin-bottom: clamp(30px, 3vw, 56px);
}

.shot--video {
  margin: clamp(40px, 4vw, 72px) 0 0;
}

.bento {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(20px, 2.2vw, 40px);
  align-items: stretch;
}

.bento > .shot--tall {
  display: flex;
  flex-direction: column;
}

.bento > .shot--tall .frame {
  flex: 1;
}

.bento-col {
  display: grid;
  gap: clamp(30px, 3vw, 56px);
}


/* ======================================================================
   07. DESIGN SYSTEM
   One image (a phone gets a stacked version)
   ====================================================================== */
.system {
  padding-bottom: clamp(100px, 10vw, 180px);
}

.sys-image {
  margin: 0;
}

.sys-image img {
  width: 100%;
  height: auto;
}


/* ======================================================================
   08. DELIVERABLES + ALL PAGES
   ====================================================================== */
.deliver {
  padding-bottom: clamp(100px, 10vw, 180px);
}

.deliver .sec-title {
  margin-bottom: clamp(36px, 4vw, 70px);
}

.deliver-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 1.6vw, 28px);
}

.deliver-grid > div {
  padding-top: 18px;
  border-top: 2px solid var(--ink);
}

.deliver-grid h3 {
  margin: 0 0 14px;
  color: var(--mute);
  font-weight: 400;
}

.deliver-grid ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.deliver-grid li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font: 400 clamp(15px, 1.1vw, 19px)/1.3 var(--sans);
}

.pages {
  padding-bottom: clamp(100px, 10vw, 180px);
}

.pages-frame {
  margin: 0;
}

.pages-frame .frame {
  overflow: hidden;
  border-radius: clamp(14px, 1.2vw, 22px);
  background: var(--ink);
}

.pages-frame .media {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}


/* ======================================================================
   09. MOBILE
   ====================================================================== */
@media (max-width: 900px) {
  .kick span:nth-child(3) {
    display: none;
  }

  .meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 24px;
  }

  .overview,
  .approach-in {
    grid-template-columns: minmax(0, 1fr);
  }

  .overview .sec-title,
  .ap-left {
    position: static;
  }

  .facts {
    grid-template-columns: 1fr;
  }

  .num-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .num-grid > div:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .num-grid > div {
    padding-block: 36px;
    border-top: 1px solid rgb(16 18 18 / 12%);
  }

  .bento {
    grid-template-columns: minmax(0, 1fr);
  }

  .bento-col,
  .bento > * {
    min-width: 0;
  }

  .shot--tall .frame {
    aspect-ratio: 715 / 1100;
    height: auto;
  }

  .deliver-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shot figcaption {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 600px) {
  .kick span:nth-child(2) {
    display: none;
  }

  .title {
    font-size: 15.5vw;
  }

  .meta,
  .deliver-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .num-grid > div {
    border-left: 0 !important;
    padding-left: 0 !important;
  }

  .sec-title {
    font-size: 8.6vw;
  }
}


/* ======================================================================
   10. REDUCED MOTION
   ====================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .statement .w {
    color: inherit;
  }
}