/* ==========================================================
   nxell - coming soon
   Brand: navy #2d3754, green #01b288, sage #cbd3c9
   Type:  Tajawal (Arabic) + Avenir Next (Latin), per brand files
   ========================================================== */

@font-face { font-family: "Tajawal"; src: url("assets/fonts/Tajawal-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Tajawal"; src: url("assets/fonts/Tajawal-Medium.ttf") format("truetype"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Tajawal"; src: url("assets/fonts/Tajawal-Bold.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Tajawal"; src: url("assets/fonts/Tajawal-ExtraBold.ttf") format("truetype"); font-weight: 800; font-display: swap; }

/* Avenir Next is a commercial font. It is used when installed on the device,
   otherwise falls back to Segoe UI / Tajawal. To serve it to every visitor,
   add your licensed AvenirNext-*.woff2 files to assets/fonts/ and append
   url("assets/fonts/AvenirNext-Regular.woff2") etc. to each src below. */
@font-face {
  font-family: "Brand Latin";
  src: local("Avenir Next"), local("AvenirNext-Regular"), local("Avenir Next LT Pro"),
       local("Avenir"), local("Avenir Book");
  font-weight: 400; font-display: swap;
}
@font-face {
  font-family: "Brand Latin";
  src: local("Avenir Next Demi Bold"), local("AvenirNext-DemiBold"), local("Avenir Next LT Pro Demi"),
       local("Avenir Heavy");
  font-weight: 600; font-display: swap;
}
@font-face {
  font-family: "Brand Latin";
  src: local("Avenir Next Bold"), local("AvenirNext-Bold"), local("Avenir Next LT Pro Bold"),
       local("Avenir Black"), local("Avenir Heavy");
  font-weight: 700 800; font-display: swap;
}

:root {
  --navy: #2d3754;
  --green: #01b288;
  --sage: #cbd3c9;

  --bg: #fbfcfb;
  --bg-tint: #eef3f0;
  --ink: #2d3754;
  --ink-soft: #5c6680;
  --line: rgba(45, 55, 84, .14);
  --accent: var(--green);
  --mark-a: var(--green);
  --mark-b: var(--navy);
  --ctl-bg: rgba(255, 255, 255, .72);
  --cta-bg: var(--navy);
  --cta-ink: #f7f9f8;
  --cta-hover: #01a07b;
  --cta-hover-ink: #ffffff;
  --shadow: 0 18px 40px -18px rgba(45, 55, 84, .35);

  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-spring: cubic-bezier(.34, 1.4, .64, 1);
  --radius: 999px;
  --gutter: clamp(1rem, 4vw, 3.5rem);

  --font: "Tajawal", "Segoe UI", Tahoma, sans-serif;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #1f2539;
  --bg-tint: #2d3754;
  --ink: #eef1ee;
  --ink-soft: #b7bfcd;
  --line: rgba(203, 211, 201, .16);
  --mark-a: var(--sage);
  --mark-b: #f4f6f4;
  --ctl-bg: rgba(45, 55, 84, .6);
  --cta-bg: var(--sage);
  --cta-ink: var(--navy);
  --cta-hover: #f4f6f4;
  --cta-hover-ink: var(--navy);
  --shadow: 0 18px 40px -18px rgba(0, 0, 0, .55);
  color-scheme: dark;
}

:root[lang="en"] { --font: "Brand Latin", "Avenir Next", Avenir, "Segoe UI", "Tajawal", sans-serif; }

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .5s var(--ease-out), color .5s var(--ease-out);
}

img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- ambient brand shapes (from the identity sheet) ---------- */
.ambient { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.blob { position: absolute; display: block; background: var(--bg-tint); transition: background-color .5s var(--ease-out); }
.blob-a {
  width: min(78vw, 980px); aspect-ratio: 1;
  inset-inline-end: -22vw; top: -34vh;
  border-end-start-radius: 100%;
  opacity: .75;
  animation: drift-a 22s ease-in-out infinite alternate;
}
.blob-b {
  width: min(52vw, 640px); aspect-ratio: 1;
  inset-inline-start: -16vw; bottom: -30vh;
  border-start-end-radius: 100%;
  opacity: .55;
  animation: drift-b 26s ease-in-out infinite alternate;
}
:root[data-theme="dark"] .blob-a { opacity: .55; }
:root[data-theme="dark"] .blob-b { opacity: .35; }

@keyframes drift-a { to { transform: translate3d(0, 4vh, 0) scale(1.04); } }
@keyframes drift-b { to { transform: translate3d(0, -3vh, 0) scale(1.06); } }

/* ---------- layout ---------- */
.page {
  position: relative; z-index: 1;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  max-width: 1360px;
  margin-inline: auto;
  padding-inline: max(var(--gutter), env(safe-area-inset-left));
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
  padding-top: env(safe-area-inset-top);
  opacity: 0; animation: fade-down .9s var(--ease-out) .05s forwards;
}
.brand { display: inline-flex; }
.wm { height: 30px; width: auto; }
.wm-dark { display: none; }
:root[data-theme="dark"] .wm-light { display: none; }
:root[data-theme="dark"] .wm-dark { display: block; }

.controls { display: flex; gap: .5rem; }
.ctl {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  height: 42px; min-width: 42px; padding: 0 .9rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--ctl-bg);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  cursor: pointer;
  font-size: .9rem; font-weight: 500;
  transition: transform .35s var(--ease-spring), border-color .3s, background-color .5s;
}
.ctl:hover { border-color: var(--accent); }
.ctl:active { transform: scale(.95); }
.ctl .ph { font-size: 1.15rem; }
.lang-label { font-family: "Brand Latin", "Avenir Next", Avenir, "Segoe UI", sans-serif; line-height: 1; padding-top: 1px; }
:root[lang="en"] .lang-label { font-family: "Tajawal", sans-serif; padding-top: 3px; }

.theme-btn { padding: 0; width: 42px; position: relative; overflow: hidden; }
.theme-btn .ph { position: absolute; transition: transform .6s var(--ease-spring), opacity .3s; }
.icon-sun { transform: translateY(140%) rotate(-90deg); opacity: 0; }
:root[data-theme="dark"] .icon-moon { transform: translateY(-140%) rotate(90deg); opacity: 0; }
:root[data-theme="dark"] .icon-sun { transform: none; opacity: 1; }

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(1.5rem, 4vh, 3rem);
}

.copy { max-width: 40rem; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .85rem;
  margin: 0 0 1.4rem;
  color: var(--accent);
  font-weight: 700; font-size: 1rem;
}
:root[lang="en"] .eyebrow { text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; }
.eyebrow-line {
  width: 44px; height: 2px; border-radius: 2px; background: currentColor;
  transform-origin: inline-start; transform: scaleX(0);
  animation: grow 1s var(--ease-out) .35s forwards;
}
[dir="rtl"] .eyebrow-line { transform-origin: right; }
[dir="ltr"] .eyebrow-line { transform-origin: left; }

.slogan {
  margin: 0;
  font-weight: 800;
  font-size: clamp(2.6rem, 6.6vw, 5.9rem);
  line-height: 1.22;
  letter-spacing: 0;
  color: var(--ink);
}
:root[lang="en"] .slogan {
  font-weight: 700;
  font-size: clamp(2.4rem, 5.8vw, 5.2rem);
  line-height: 1.06;
  letter-spacing: -.03em;
}
.slogan .line { display: block; }
.slogan .w {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  padding-block: .06em .12em;
  margin-block: -.06em -.12em;
}
.slogan .w > span {
  display: inline-block;
  transform: translate3d(0, 110%, 0);
  animation: rise 1.05s var(--ease-out) forwards;
  animation-delay: calc(.3s + var(--i) * .09s);
}
.slogan .accent { color: var(--accent); }
:root[data-theme="dark"] .slogan .accent { color: var(--sage); }

.dots { display: inline-flex; gap: .08em; margin-inline-start: .04em; }
.dots span {
  display: inline-block;
  color: var(--accent);
  opacity: 0;
  animation: dot-in .5s var(--ease-out) forwards, dot-pulse 2.4s ease-in-out infinite;
  animation-delay: calc(1s + var(--i) * .14s), calc(2s + var(--i) * .22s);
}

.sub {
  margin: 1.6rem 0 0;
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  line-height: 1.75;
}
:root[lang="en"] .sub { line-height: 1.6; }

.actions { margin-top: 2.2rem; display: flex; flex-wrap: wrap; gap: .75rem; }

.cta {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; gap: .7rem;
  height: 56px; padding: 0 1.6rem 0 1.4rem;
  border-radius: var(--radius);
  background: var(--cta-bg); color: var(--cta-ink);
  font-weight: 700; font-size: 1.02rem; white-space: nowrap;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform .45s var(--ease-spring), color .35s, background-color .5s;
}
[dir="rtl"] .cta { padding: 0 1.4rem 0 1.6rem; }
.cta-fill {
  position: absolute; z-index: -1;
  left: var(--x, 50%); top: var(--y, 50%);
  width: 0; height: 0; border-radius: 50%;
  background: var(--cta-hover);
  transform: translate(-50%, -50%);
  transition: width .55s var(--ease-out), height .55s var(--ease-out);
}
.cta:hover .cta-fill, .cta:focus-visible .cta-fill { width: 340px; height: 340px; }
.cta:hover, .cta:focus-visible { color: var(--cta-hover-ink); }
.cta:active { transform: scale(.97); }
.cta-icon { font-size: 1.15rem; transition: transform .45s var(--ease-spring); }
.cta:hover .cta-icon { transform: translate(-3px, -3px); }
[dir="ltr"] .cta:hover .cta-icon { transform: translate(3px, -3px); }

/* ---------- visual ---------- */
.visual { display: grid; place-items: center; }
.stage {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 1;
  display: grid; place-items: center;
  --mx: 0; --my: 0;
}

.layers {
  position: absolute; inset: 0; width: 100%; height: 100%;
  overflow: visible;
}
[dir="rtl"] .layers { transform: scaleX(-1); }
.layer {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw 2.4s var(--ease-out) forwards;
  transition: stroke .5s;
}
.l1 { opacity: .22; animation-delay: .9s; }
.l2 { opacity: .14; animation-delay: 1.05s; }
.l3 { opacity: .08; animation-delay: 1.2s; }
.l1 { stroke: var(--accent); opacity: .55; }
:root[data-theme="dark"] .l1 { stroke: var(--sage); opacity: .4; }

.mark { width: 64%; height: auto; overflow: visible; }
.fill-a { fill: var(--mark-a); transition: fill .5s; }
.fill-b { fill: var(--mark-b); transition: fill .5s; }

.p {
  transform-box: view-box;
  transform: translate3d(calc(var(--mx) * var(--depth) * 1px), calc(var(--my) * var(--depth) * 1px), 0);
  transition: transform .9s var(--ease-out);
}
.breathe { transform-box: fill-box; }

.p-a .breathe { animation: in-a 1.2s var(--ease-spring) .25s both, breathe-a 6s ease-in-out 2s infinite; }
.p-b .breathe { animation: in-b 1.2s var(--ease-spring) .42s both, breathe-b 6s ease-in-out 2s infinite; }
.p-c .breathe { animation: in-c 1.2s var(--ease-spring) .58s both, breathe-c 6s ease-in-out 2s infinite; }

@keyframes in-a { from { transform: translate3d(0, -160px, 0); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes in-b { from { transform: translate3d(160px, 0, 0); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes in-c { from { transform: translate3d(-60px, 160px, 0); opacity: 0; } to { transform: none; opacity: 1; } }

/* The three layers part and close gently, like insulation sheets settling. */
@keyframes breathe-a { 50% { transform: translate3d(-10px, -12px, 0); } }
@keyframes breathe-b { 50% { transform: translate3d(12px, 4px, 0); } }
@keyframes breathe-c { 50% { transform: translate3d(-6px, 14px, 0); } }

/* ---------- footer ---------- */
.foot {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1.5rem;
  padding-block: 1.4rem calc(1.4rem + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: .9rem;
}
.foot p { margin: 0; }
.foot-end { font-family: "Brand Latin", "Avenir Next", Avenir, "Segoe UI", sans-serif; direction: ltr; }

/* ---------- entrance helpers ---------- */
.reveal { opacity: 0; transform: translate3d(0, 18px, 0); animation: rise-fade .9s var(--ease-out) forwards; animation-delay: var(--d, 0s); }

@keyframes rise { to { transform: translate3d(0, 0, 0); } }
@keyframes rise-fade { to { opacity: 1; transform: none; } }
@keyframes fade-down { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }
@keyframes grow { to { transform: scaleX(1); } }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes dot-in { from { opacity: 0; transform: translateY(.3em); } to { opacity: 1; transform: none; } }
@keyframes dot-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }

/* Language swap: content fades out, text changes, entrance replays. */
body.swapping .copy, body.swapping .foot p { opacity: 0; transform: translateY(8px); transition: opacity .25s, transform .25s; }
.copy, .foot p { transition: opacity .35s var(--ease-out), transform .35s var(--ease-out); }

/* Theme swap: circular reveal from the toggle (View Transitions API). */
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    align-content: center;
    gap: 1.25rem;
    padding-block: 1rem 2rem;
  }
  .visual { order: -1; }
  .stage { width: min(62vw, 300px); }
  .copy { max-width: 36rem; }
}

@media (max-width: 560px) {
  .topbar { height: 64px; }
  .wm { height: 24px; }
  .ctl { height: 40px; min-width: 40px; padding: 0 .75rem; }
  .theme-btn { width: 40px; }
  .stage { width: min(58vw, 230px); }
  .slogan { font-size: clamp(2.3rem, 11vw, 3.2rem); }
  :root[lang="en"] .slogan { font-size: clamp(2.1rem, 10vw, 3rem); }
  .sub { margin-top: 1.1rem; }
  .actions { margin-top: 1.6rem; }
  .cta { width: 100%; justify-content: center; }
  .foot { flex-direction: column; align-items: flex-start; font-size: .82rem; }
}

@media (max-width: 360px) {
  .lang-label { display: none; }
  .ctl { padding: 0; width: 40px; }
}

/* Short landscape phones: side by side, compact. */
@media (max-height: 520px) and (orientation: landscape) {
  .hero { grid-template-columns: 1.3fr .7fr; }
  .visual { order: 0; }
  .stage { width: min(34vh, 220px); }
  .slogan { font-size: clamp(1.8rem, 5vw, 2.6rem); }
  .sub { margin-top: .8rem; font-size: .95rem; }
  .actions { margin-top: 1rem; }
}

@media (min-width: 1600px) {
  .stage { width: min(100%, 600px); }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .p { transform: none !important; }
}