/* عطلات — لغة بصرية مستمدة من لوحات إعلانات المطارات */

:root {
  --ink:      #101B2D;
  --ink-2:    #1B2B44;
  --ink-3:    #2A3E5C;
  --paper:    #FBFAF7;
  --paper-2:  #F1EFE9;
  --rule:     #D9D5CB;
  --brass:    #B8862F;
  --brass-lt: #E8D9B8;
  --sufficient: #2F6B57;
  --short:      #9E3F3B;
  --text:     #16202E;
  --muted:    #5C6878;

  --display: "Readex Pro", system-ui, sans-serif;
  --body: "IBM Plex Sans Arabic", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --w: 68rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration-color: var(--brass); text-underline-offset: .25em; }
a:hover { color: var(--brass); }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ── الترويسة ── */
.masthead {
  background: var(--ink);
  color: var(--paper);
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; flex-wrap: wrap;
  padding: 1rem clamp(1rem, 5vw, 3rem);
}
.brand { display: flex; align-items: baseline; gap: .6rem; text-decoration: none; }
.brand-mark {
  font-family: var(--display); font-weight: 700; font-size: 1.4rem;
  color: var(--paper); letter-spacing: -.01em;
}
.brand-sub { font-size: .8rem; color: var(--brass-lt); }
.nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.nav a { color: var(--paper); text-decoration: none; font-size: .95rem; opacity: .85; }
.nav a:hover { opacity: 1; color: var(--brass-lt); }

/* ── التخطيط ── */
.wrap {
  max-width: var(--w);
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3.5rem) clamp(1rem, 5vw, 2rem) 4rem;
}

.crumbs { font-size: .85rem; color: var(--muted); margin-bottom: 1.5rem; }
.crumbs a { color: var(--muted); }

h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.25; letter-spacing: -.02em;
  margin: 0 0 1.5rem;
}

h2 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(1.3rem, 2.6vw, 1.65rem);
  line-height: 1.35; margin: 2.75rem 0 .9rem;
}

/* ── الإجابة المباشرة ── */
.answer {
  border-inline-start: 3px solid var(--brass);
  background: var(--paper-2);
  padding: 1.25rem 1.5rem;
  margin: 0 0 2.5rem;
}
.answer p { margin: 0; font-size: 1.12rem; line-height: 1.8; }

.blk p, .faq dd { margin: 0 0 1rem; }

/* ── الواجهة الأولى ── */
.hero { margin-bottom: 2.5rem; }
.eyebrow {
  font-family: var(--mono); font-size: .78rem;
  letter-spacing: .08em; color: var(--brass);
  text-transform: uppercase; margin: 0 0 .6rem;
}
.hero-h {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  line-height: 1.1; letter-spacing: -.03em; margin: 0 0 1rem;
}
.hero-p { font-size: 1.15rem; color: var(--muted); max-width: 44ch; margin: 0; }

/* ── الحاسبة ── */
.calc {
  background: var(--ink);
  color: var(--paper);
  border-radius: 4px;
  padding: clamp(1.25rem, 4vw, 2.25rem);
  margin: 2.5rem 0 3rem;
}
.calc-head h2 {
  font-family: var(--display); color: var(--paper);
  margin: 0 0 .4rem; font-size: clamp(1.35rem, 3vw, 1.75rem);
}
.calc-head p { margin: 0 0 1.75rem; color: #A9B6C8; font-size: .95rem; }

.calc-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  margin-bottom: 1.25rem;
}
.field { display: flex; flex-direction: column; gap: .45rem; }
.field-wide { margin-bottom: 1rem; }
.field label, #style-lbl {
  font-size: .82rem; color: var(--brass-lt); font-weight: 500;
}
.field select, .field input[type=number] {
  font-family: var(--mono); font-size: 1.05rem; font-weight: 500;
  background: var(--ink-2); color: var(--paper);
  border: 1px solid var(--ink-3); border-radius: 3px;
  padding: .7rem .8rem; width: 100%;
}
.field select { font-family: var(--body); }
.field input:focus, .field select:focus { border-color: var(--brass); }

.segs { display: flex; gap: .4rem; flex-wrap: wrap; }
.seg {
  font-family: var(--body); font-size: .9rem;
  background: var(--ink-2); color: #A9B6C8;
  border: 1px solid var(--ink-3); border-radius: 3px;
  padding: .55rem 1rem; cursor: pointer;
}
.seg:hover { color: var(--paper); }
.seg.is-on { background: var(--brass); color: var(--ink); border-color: var(--brass); font-weight: 600; }
.seg-desc { font-size: .82rem; color: #8B99AC; margin: .6rem 0 0; }

.check {
  display: flex; align-items: center; gap: .5rem;
  font-size: .92rem; color: #A9B6C8; cursor: pointer; margin-bottom: 1.5rem;
}
.check input { width: 1.05rem; height: 1.05rem; accent-color: var(--brass); }

/* ── لوحة النتيجة: العنصر المميز ── */
.board {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--ink-3);
  border: 1px solid var(--ink-3);
  margin-bottom: 1.5rem;
}
.board-verdict, .board-gap {
  background: var(--ink); padding: 1.1rem 1.25rem;
  display: flex; flex-direction: column; gap: .3rem;
}
.board-label {
  font-family: var(--mono); font-size: .7rem;
  letter-spacing: .1em; color: #7A8BA3; text-transform: uppercase;
}
.board-word {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.6rem, 5vw, 2.4rem); line-height: 1;
}
.board-num {
  font-family: var(--mono); font-weight: 600;
  font-size: clamp(1.5rem, 4.5vw, 2.1rem); line-height: 1;
  font-variant-numeric: tabular-nums;
}
.board.is-ok .board-word { color: #6FCFAE; }
.board.is-ok .board-num { color: #6FCFAE; }
.board.is-short .board-word { color: #E8877F; }
.board.is-short .board-num { color: #E8877F; }

/* ── جدول التفصيل ── */
.ledger { width: 100%; border-collapse: collapse; font-size: .96rem; }
.ledger th, .ledger td {
  padding: .6rem .2rem; text-align: start;
  border-bottom: 1px solid var(--ink-2);
}
.ledger th { font-weight: 400; color: #A9B6C8; }
.ledger td {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  text-align: end; color: var(--paper);
}
.ledger .total th { color: var(--brass-lt); font-weight: 600; }
.ledger .total td { color: var(--brass-lt); font-weight: 600; font-size: 1.1rem; }
.ledger .total th, .ledger .total td { border-bottom: none; border-top: 2px solid var(--ink-3); }

.calc-note {
  font-size: .9rem; color: var(--brass-lt);
  margin: 1.25rem 0 0; padding-inline-start: .75rem;
  border-inline-start: 2px solid var(--brass);
}
.calc-fine { font-size: .8rem; color: #7A8BA3; margin: 1rem 0 0; }

/* ── الأسئلة ── */
.faq dl { margin: 0; }
.faq dt {
  font-weight: 600; font-size: 1.05rem;
  margin: 1.75rem 0 .5rem; color: var(--ink);
}
.faq dd { margin: 0; color: #2C3847; }

/* ── العناقيد ── */
.silos {
  display: grid; gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  margin-top: 3.5rem;
}
.silo h2 {
  font-size: 1.05rem; margin: 0 0 1rem; padding-bottom: .5rem;
  border-bottom: 2px solid var(--ink); font-family: var(--display);
}
.silo ul { list-style: none; padding: 0; margin: 0; }
.silo li { margin-bottom: 1.1rem; }
.silo li a { display: block; font-weight: 500; text-decoration: none; line-height: 1.5; }
.silo li a:hover { text-decoration: underline; }
.silo li span {
  display: block; font-size: .85rem; color: var(--muted);
  line-height: 1.6; margin-top: .2rem;
}

/* ── ذات صلة ── */
.rel ul { list-style: none; padding: 0; margin: 0; }
.rel li { border-top: 1px solid var(--rule); padding: .85rem 0; }
.rel li a { text-decoration: none; font-weight: 500; }
.rel li a:hover { text-decoration: underline; }

/* ── التذييل ── */
.foot { background: var(--ink); color: #A9B6C8; margin-top: 4rem; }
.foot-in {
  max-width: var(--w); margin: 0 auto;
  padding: 2.5rem clamp(1rem, 5vw, 2rem);
}
.foot-note { margin: 0 0 .75rem; font-size: .9rem; max-width: 60ch; }
.foot-meta { margin: 0; font-size: .8rem; color: #6B7A90; font-family: var(--mono); }

@media (max-width: 30rem) {
  .board { grid-template-columns: 1fr; }
}