/* nikilive.app — main stylesheet
   Mobile-first. Logical properties throughout so RTL (ar, ur, he) needs no overrides.
   No webfonts: the audience is mostly on low-end devices and slow networks. */

:root {
  --bg: #07131F;
  --bg-2: #0C1E2E;
  --bg-3: #122A3D;
  --ink: #EDF8FB;
  --muted: #A9C6D3;
  --accent: #2BD5F3;
  --accent-soft: rgba(43, 213, 243, 0.14);
  --yellow: #FFC53D;
  --yellow-ink: #1A1400;
  --line: rgba(169, 198, 211, 0.18);
  --radius: 14px;
  --wrap: 1120px;
  --prose: 44rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
  text-align: start;
  -webkit-font-smoothing: antialiased;
  /* Content protection: text is not selectable, except e-mail addresses. */
  -webkit-user-select: none;
  user-select: none;
}
a[href^="mailto:"] { -webkit-user-select: text; user-select: text; }
img { max-width: 100%; height: auto; display: block; -webkit-user-drag: none; user-drag: none; }

a { color: var(--accent); text-decoration: underline; text-underline-offset: 0.15em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.015em; margin: 0; font-weight: 800; }
h1 { font-size: clamp(2rem, 7vw, 3.25rem); letter-spacing: -0.025em; }
h2 { font-size: clamp(1.5rem, 4.5vw, 2rem); margin-block: 0 0.9em; }
h3 { font-size: 1.2rem; margin-block: 1.6em 0.5em; color: var(--ink); }
p { margin-block: 0 1em; }
strong { font-weight: 700; color: var(--ink); }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.prose { max-width: var(--prose); }
.prose ul, .prose ol { padding-inline-start: 1.35em; margin-block: 0 1.1em; }
.prose li { margin-block: 0.35em; }
.prose li::marker { color: var(--accent); }

/* Numbers and figures keep their own direction in RTL pages */
td, th, .stat strong { unicode-bidi: plaintext; }
bdi[dir="ltr"] { unicode-bidi: isolate; direction: ltr; }
[dir="rtl"] td, [dir="rtl"] th, [dir="rtl"] .stat strong { text-align: right; }

/* ---------------------------------------------------------------- skip */
.skip { position: absolute; inset-inline-start: 1rem; top: -4rem; background: var(--yellow); color: var(--yellow-ink); padding: 0.6rem 1rem; border-radius: 8px; z-index: 100; font-weight: 700; }
.skip:focus { top: 1rem; }

/* -------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 3rem; padding: 0.7rem 1.35rem; border-radius: 999px;
  font-weight: 700; font-size: 1rem; text-decoration: none; line-height: 1.2;
  border: 2px solid transparent; transition: transform 120ms ease, background 120ms ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--yellow); color: var(--yellow-ink); border-color: var(--yellow); }
.btn-primary:hover { background: #FFD262; }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--accent); }
.btn-secondary:hover { background: var(--accent-soft); }
.btn-header { min-height: 2.5rem; padding-block: 0.4rem; font-size: 0.95rem; }

/* --------------------------------------------------------------- header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(7, 19, 31, 0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.75rem; }
.brand { display: inline-flex; align-items: center; gap: 0.55rem; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 1.15rem; letter-spacing: -0.01em; white-space: nowrap; }
.brand img { border-radius: 8px; }
.nav-desktop { display: none; gap: 1.5rem; }
.nav-desktop a { color: var(--muted); text-decoration: none; font-weight: 600; padding-block: 0.4rem; }
.nav-desktop a:hover, .nav-desktop a[aria-current="page"] { color: var(--ink); }
.nav-desktop a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent); }
.header-tools { display: flex; align-items: center; gap: 0.6rem; }
.header-tools .btn-header { display: none; }

.lang-switch { position: relative; }
.lang-btn { background: transparent; color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 0.45rem 0.9rem; font: inherit; font-weight: 600; font-size: 0.9rem; cursor: pointer; white-space: nowrap; }
.lang-btn::after { content: ""; display: inline-block; margin-inline-start: 0.4rem; width: 0.4em; height: 0.4em; border: 0 solid var(--accent); border-width: 0 2px 2px 0; transform: translateY(-2px) rotate(45deg); }
.lang-menu { position: absolute; inset-inline-end: 0; top: calc(100% + 0.5rem); margin: 0; padding: 0.4rem; list-style: none; background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; min-width: 12rem; max-height: min(70vh, 32rem); overflow: auto; box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45); }
.lang-menu a, .mobile-langs a { display: block; padding: 0.5rem 0.8rem; border-radius: 8px; color: var(--ink); text-decoration: none; }
.lang-menu a:hover, .mobile-langs a:hover { background: var(--accent-soft); }
.lang-menu a[aria-current="true"], .mobile-langs a[aria-current="true"] { color: var(--accent); font-weight: 700; }

.menu-btn { display: inline-flex; flex-direction: column; justify-content: center; gap: 5px; width: 2.6rem; height: 2.6rem; padding: 0; background: transparent; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; align-items: center; }
.menu-btn span { display: block; width: 1.2rem; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 160ms ease, opacity 160ms ease; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu { border-top: 1px solid var(--line); background: var(--bg-2); padding: 1rem 1.25rem 1.5rem; }
.mobile-menu nav { display: grid; gap: 0.2rem; margin-block-end: 1rem; }
.mobile-menu nav a { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 1.1rem; padding: 0.6rem 0.2rem; border-bottom: 1px solid var(--line); }
.mobile-menu nav a[aria-current="page"] { color: var(--accent); }
.mobile-menu .btn { width: 100%; }
.mobile-lang-label { margin-block: 1.25rem 0.4rem; color: var(--muted); font-size: 0.9rem; }
.mobile-langs { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0.1rem; }

/* ----------------------------------------------------------------- hero */
.hero { position: relative; isolation: isolate; overflow: hidden; background: var(--bg-2); }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background-image: var(--hero-img, none); background-size: cover; background-position: center top;
}
.hero::after {
  /* the same gradient works with or without a photo: the placeholder has no image yet */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 45% at 85% 10%, rgba(43, 213, 243, 0.35), transparent 70%),
    radial-gradient(45% 35% at 10% 90%, rgba(255, 197, 61, 0.22), transparent 70%),
    linear-gradient(180deg, rgba(7, 19, 31, 0.55) 0%, rgba(7, 19, 31, 0.86) 55%, var(--bg) 100%);
}
.hero-inner { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; padding-block: 3.25rem 2.75rem; }
.hero-media { display: none; }
.eyebrow { color: var(--accent); font-weight: 700; margin-block-end: 0.7rem; font-size: 0.95rem; }
.hero h1 { max-width: 14ch; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 38rem; margin-block: 1.1rem 1.6rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero-ctas .btn { flex: 1 1 12rem; }

/* Crossfade hero (Arabic home): first frame, then the second one fades in once */
.hero-bg-2 { position: absolute; inset: 0; z-index: -2; background-image: var(--hero-img-2); background-size: cover; background-position: center top; opacity: 0; animation: hero-fade 9s ease-in-out 1 forwards; }
.hero-media-fade { position: relative; }
.hero-media-fade .hero-img-2 { position: absolute; inset: 0; opacity: 0; animation: hero-fade 9s ease-in-out 1 forwards; }
@keyframes hero-fade { 0%, 45% { opacity: 0; } 100% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .hero-bg-2, .hero-media-fade .hero-img-2 { animation: none; opacity: 0; } }
@media (min-width: 960px) { .hero-bg-2 { display: none; } }

/* ---------------------------------------------------------------- stats */
.stats { background: var(--bg); border-block: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.stat { padding: 1.1rem 0.6rem; display: grid; gap: 0.2rem; border-inline-end: 1px solid var(--line); border-block-end: 1px solid var(--line); }
.stat:nth-child(2n) { border-inline-end: 0; }
.stat:nth-last-child(-n + 2) { border-block-end: 0; }
.stat strong { font-size: 1.75rem; font-weight: 800; letter-spacing: -0.02em; color: var(--accent); line-height: 1.1; }
.stat span { color: var(--muted); font-size: 0.9rem; line-height: 1.35; }

/* ------------------------------------------------------------- sections */
.section { padding-block: 2.75rem; }
.section + .section { border-top: 1px solid var(--line); }
.section p { color: var(--muted); }
.section p strong, .section li strong { color: var(--ink); }
.section li { color: var(--muted); }
.note { padding: 0.9rem 1rem; background: var(--bg-2); border-inline-start: 3px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; }
[dir="rtl"] .note { border-radius: var(--radius) 0 0 var(--radius); }

.steps { list-style: none; padding: 0; margin-block: 0 1.25rem; counter-reset: step; display: grid; gap: 0.9rem; }
.steps li { counter-increment: step; position: relative; padding-inline-start: 3.1rem; min-height: 2.4rem; color: var(--muted); }
.steps li::before {
  content: counter(step); position: absolute; inset-inline-start: 0; top: 0;
  width: 2.3rem; height: 2.3rem; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: var(--bg); font-weight: 800; font-size: 1.05rem;
}

/* -------------------------------------------------------------- figures */
.figure { margin: 0 0 1.4rem; }
.figure img { border-radius: var(--radius); width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.figure-placeholder { aspect-ratio: 3 / 2; border: 2px dashed rgba(43, 213, 243, 0.45); border-radius: var(--radius); display: grid; place-items: center; color: var(--accent); text-align: center; font-weight: 700; }
.links { list-style: none; padding: 0; }
.links li { padding-inline-start: 0; }
.links a { font-weight: 600; }

/* --------------------------------------------------------------- tables */
.table-caption { font-weight: 700; color: var(--ink); margin-block: 0.4rem 0.6rem; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-block-end: 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; }
.table-wide table { min-width: 30rem; }
td small, th small { display: block; color: var(--muted); font-size: 0.85em; margin-top: 0.15em; font-weight: 400; }
th, td { padding: 0.75rem 0.7rem; text-align: start; border-bottom: 1px solid var(--line); vertical-align: middle; }
thead th { color: var(--muted); font-weight: 600; font-size: 0.85rem; background: var(--bg-3); }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
tbody th { font-weight: 800; color: var(--accent); font-size: 1.1rem; width: 3.2rem; white-space: nowrap; }
.table-textrows tbody th { width: auto; white-space: normal; font-size: 1rem; font-weight: 600; color: var(--ink); }
.table-textrows td { width: 4.5rem; white-space: nowrap; font-weight: 800; color: var(--accent); font-size: 1.1rem; }
td.ladder { position: relative; width: 6.2rem; white-space: nowrap; }
td.ladder .bar { position: absolute; inset-inline-start: 0; top: 50%; transform: translateY(-50%); height: 1.7rem; border-radius: 0 999px 999px 0; background: linear-gradient(90deg, rgba(43, 213, 243, 0.55), rgba(43, 213, 243, 0.25)); }
[dir="rtl"] td.ladder .bar { border-radius: 999px 0 0 999px; background: linear-gradient(270deg, rgba(43, 213, 243, 0.55), rgba(43, 213, 243, 0.25)); }
td.ladder .bar-label { position: relative; font-weight: 800; color: var(--ink); padding-inline-start: 0.6rem; }

/* ------------------------------------------------------------------ faq */
.faq-item { padding-block: 1.1rem; border-top: 1px solid var(--line); }
.faq-item h3 { margin-block: 0 0.4rem; font-size: 1.1rem; }
.faq-item p { margin: 0; }
.faq .faq-item:last-child { padding-block-end: 0; }

/* ------------------------------------------------------------------ cta */
.cta { padding-block: 2.5rem 2rem; background: linear-gradient(180deg, var(--bg-2), var(--bg)); border-top: 1px solid var(--line); }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-block-end: 1.4rem; }
.cta-buttons .btn { flex: 1 1 12rem; }
.contact { color: var(--ink); }
.disclaimer { color: var(--muted); font-size: 0.85rem; margin: 0; }

/* --------------------------------------------------------------- footer */
.site-footer { padding-block: 1.75rem 2.5rem; border-top: 1px solid var(--line); text-align: center; }
.copyright { color: var(--muted); font-size: 0.9rem; margin-block-end: 0.75rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem 1.25rem; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--ink); }

/* ------------------------------------------------------------- dialog */
.download-dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); color: var(--ink); padding: 1.5rem; width: min(92vw, 24rem); text-align: center; }
.download-dialog::backdrop { background: rgba(3, 10, 18, 0.7); }
.download-dialog h2 { font-size: 1.35rem; margin-block-end: 0.5rem; }
.download-dialog p { color: var(--muted); }
.download-dialog .btn { width: 100%; margin-block: 0.5rem 0.9rem; }
.dialog-note { font-size: 0.85rem; margin: 0; }
.dialog-close { position: absolute; inset-inline-end: 0.5rem; top: 0.5rem; background: transparent; border: 0; color: var(--muted); font-size: 1.6rem; width: 2.2rem; height: 2.2rem; border-radius: 50%; cursor: pointer; }
.dialog-close:hover { background: var(--accent-soft); color: var(--ink); }

/* -------------------------------------------------------- language root */
.chooser { min-height: 100vh; display: grid; place-content: center; text-align: center; padding: 2rem 1.25rem; gap: 0.5rem; }
.chooser img { margin-inline: auto; border-radius: 22px; }
.chooser h1 { font-size: 2rem; }
.chooser p { color: var(--muted); }
.chooser-list { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem; max-width: 34rem; }
.chooser-list a { display: block; padding: 0.7rem 0.6rem; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); text-decoration: none; font-weight: 600; }
.chooser-list a:hover { border-color: var(--accent); background: var(--accent-soft); }

/* ------------------------------------------------------------- desktop */
@media (min-width: 760px) {
  body { font-size: 1.0625rem; }
  th, td { padding: 0.8rem 1rem; }
  tbody th { width: 4.5rem; }
  .table-textrows tbody th { width: auto; }
  td.ladder { width: 9rem; }
  .nav-desktop { display: flex; }
  .header-tools .btn-header { display: inline-flex; }
  .menu-btn { display: none; }
  .mobile-menu { display: none !important; }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .stat { border-block-end: 0; padding: 1.5rem 1rem; }
  .stat:nth-child(2n) { border-inline-end: 1px solid var(--line); }
  .stat:last-child { border-inline-end: 0; }
  .section { padding-block: 3.5rem; }
  .hero-ctas .btn { flex: 0 1 auto; min-width: 12rem; }
  .chooser-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
  .hero::before { display: none; }
  .hero-inner { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 3rem; align-items: center; padding-block: 4.5rem 4rem; }
  .hero-media { display: block; }
  .hero-media img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 24px; box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5); }
  .hero-placeholder { aspect-ratio: 4 / 5; border: 2px dashed rgba(43, 213, 243, 0.45); border-radius: 24px; display: grid; place-items: center; color: var(--accent); text-align: center; font-weight: 700; }
  .hero h1 { max-width: 12ch; }
}

@media print { .site-header, .site-footer, .cta-buttons, .hero-ctas { display: none; } }