/* ==========================================================================
   ODTÜ Mescid — main.css
   Character: the app's own brand. Near-black #0D0D0D, one red #CC0000,
   dense product typography and a phone that shows the app's main screen.
   ========================================================================== */

/* ---------------------------------- Tokens ------------------------------- */
:root {
  /* Color */
  --canvas:      #0d0d0d;
  --surface:     #161616;
  --surface-2:   #1d1d1d;
  --ink:         #f4f4f4;
  --ink-mute:    #a3a3a3;
  --accent:      #cc0000;
  --accent-ink:  #ffffff;
  --accent-deep: #8b0000;
  --hairline:    #262626;
  --focus:       #ff4d4d;

  /* Type */
  --font-display: "Plus Jakarta Sans", Inter, system-ui, sans-serif;
  --font-body:    "Plus Jakarta Sans", Inter, system-ui, sans-serif;
  --size-body:    16px;

  /* Space */
  --space-xs:   8px;
  --space-sm:   12px;
  --space-md:   16px;
  --space-lg:   24px;
  --space-xl:   32px;
  --space-xxl:  48px;
  --space-huge: 112px;

  /* Shape */
  --radius-sm:   10px;
  --radius-md:   18px;
  --radius-lg:   44px;
  --radius-pill: 999px;

  /* Layout */
  --column: 1120px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------------------------------- Reset -------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, dl, dd, ol, ul, figure, blockquote { margin: 0; }
ol, ul { padding: 0; list-style: none; }
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ------------------------------- Typography ------------------------------ */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.display--xl { font-size: clamp(38px, 5.4vw, 64px); line-height: 1.04; }
.display--lg { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.1; }
.display--sm { font-size: 18px; line-height: 1.3; letter-spacing: -0.01em; font-weight: 700; }
.display .accent { color: var(--accent); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-mute);
}
.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.lead {
  max-width: 54ch;
  font-size: 18px;
  line-height: 1.65;
  color: var(--ink-mute);
}

/* --------------------------------- Button -------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 13px 20px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn:hover { background: #e00000; border-color: #e00000; }
.btn svg { width: 18px; height: 18px; }

.btn__meta { font-weight: 500; opacity: 0.75; }

.btn--ghost {
  border-color: var(--hairline);
  background: var(--surface);
  color: var(--ink);
}
.btn--ghost:hover { background: var(--surface-2); border-color: #3a3a3a; }

.btn--sm { padding: 9px 14px; font-size: 14px; }

/* ---------------------------------- Nav ---------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--hairline);
  background: rgba(13, 13, 13, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: var(--column);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-lg);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.nav__mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent);
}
.nav__mark svg { width: 18px; height: 18px; }

.nav__list { display: flex; align-items: center; gap: var(--space-lg); }
.nav__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-mute);
  text-decoration: none;
}
.nav__link:hover { color: var(--ink); }

/* --------------------------------- Bands --------------------------------- */
.band {
  padding: var(--space-huge) var(--space-lg);
  border-bottom: 1px solid var(--hairline);
}
.band__inner {
  max-width: var(--column);
  margin: 0 auto;
}
.band__inner > * + * { margin-top: var(--space-lg); }

/* ---------------------------------- Hero --------------------------------- */
.hero { padding-top: 88px; }

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xxl);
  align-items: center;
}
.hero__text > * + * { margin-top: var(--space-lg); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.hero__note { font-size: 13px; color: var(--ink-mute); }

/* ---------------------------------- Phone -------------------------------- */
.phone {
  position: relative;
  width: min(320px, 100%);
  margin: 0 auto;
  padding: 12px;
  border: 1px solid #2c2c2c;
  border-radius: var(--radius-lg);
  background: #050505;
  box-shadow: 0 40px 90px -30px rgba(204, 0, 0, 0.45);
}

.phone__screen {
  overflow: hidden;
  border-radius: 34px;
  background: var(--canvas);
}

.phone__status {
  display: flex;
  justify-content: space-between;
  padding: 12px 22px 0;
  font-size: 11px;
  font-weight: 700;
  color: var(--ink-mute);
}

.phone__head {
  padding: 18px 20px 20px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-deep) 100%);
}
.phone__label { font-size: 12px; font-weight: 600; opacity: 0.85; }
.phone__prayer { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; }
.phone__timer {
  margin-top: 2px;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.phone__place { margin-top: 6px; font-size: 12px; opacity: 0.85; }

.times { padding: 10px 14px 16px; }
.times__row {
  display: flex;
  justify-content: space-between;
  padding: 11px 8px;
  border-bottom: 1px solid var(--hairline);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.times__row:last-child { border-bottom: 0; }
.times__row--next {
  border-radius: var(--radius-sm);
  border-bottom-color: transparent;
  background: var(--surface-2);
  color: var(--ink);
  font-weight: 700;
}
.times__row--next span:last-child { color: #ff5a5a; }
.times__row--past { color: #6b6b6b; }

.phone__tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 10px 8px 14px;
  border-top: 1px solid var(--hairline);
  font-size: 10px;
  font-weight: 600;
  text-align: center;
  color: #6b6b6b;
}
.phone__tabs span:first-child { color: var(--accent); }

.phone__caption {
  margin-top: var(--space-sm);
  font-size: 12px;
  color: #6b6b6b;
  text-align: center;
}

/* -------------------------------- Features ------------------------------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--hairline);
}

.feature {
  padding: var(--space-xl) var(--space-lg);
  background: var(--canvas);
}
.feature > * + * { margin-top: var(--space-xs); }
.feature__index {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.feature p:last-child { font-size: 15px; color: var(--ink-mute); }

.chips { display: flex; flex-wrap: wrap; gap: var(--space-xs); align-items: center; }
.chips__label { font-size: 14px; color: var(--ink-mute); }
.chip {
  padding: 6px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  background: var(--surface);
  font-size: 13px;
  font-weight: 600;
}

/* --------------------------------- Steps --------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  counter-reset: step;
}
.step {
  padding: var(--space-lg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--surface);
  counter-increment: step;
}
.step > * + * { margin-top: var(--space-xs); }
.step::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin-bottom: var(--space-md);
  border-radius: 50%;
  background: var(--accent);
  font-weight: 800;
}
.step p { font-size: 15px; color: var(--ink-mute); }

/* ---------------------------------- CTA ---------------------------------- */
.cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-xxl);
  border: 1px solid #3c0000;
  border-radius: var(--radius-md);
  background: radial-gradient(120% 140% at 100% 0%, #2a0404 0%, #130909 55%);
}
.cta > div > * + * { margin-top: var(--space-xs); }
.cta p { color: var(--ink-mute); }

/* -------------------------------- Footer --------------------------------- */
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: var(--column);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg) var(--space-xxl);
  font-size: 14px;
  color: #8c8c8c;
}
.footer__link { color: var(--ink); text-decoration: none; }
.footer__link:hover { text-decoration: underline; }

/* ------------------------------ Responsive ------------------------------- */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  :root { --space-huge: 72px; }
  .band { padding-left: var(--space-md); padding-right: var(--space-md); }
  .nav__list .nav__item--text { display: none; }
  .features { grid-template-columns: 1fr; }
  .cta { padding: var(--space-lg); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}