/* omarrezk.com — dark launch-film aesthetic */
:root {
  --bg: #000;
  --panel: #0b0d10;
  --panel-2: #12151a;
  --text: #f5f5f7;
  --muted: #9ba1a6;
  --line: rgba(255, 255, 255, 0.18);
  --accent: #7db3ff;
  --font: 'Barlow', 'Helvetica Neue', Arial, sans-serif;
  --font-cond: 'Barlow Condensed', 'Arial Narrow', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 42px;
  transition: background .35s ease, padding .35s ease;
}
.nav.scrolled { background: rgba(0,0,0,.88); backdrop-filter: blur(8px); padding: 14px 42px; }
.nav .brand {
  font-family: var(--font-cond);
  font-weight: 600; font-size: 24px; letter-spacing: 6px; text-transform: uppercase;
}
.nav .brand span { color: var(--accent); }
.nav ul { display: flex; gap: 34px; list-style: none; }
.nav ul a {
  font-size: 12.5px; font-weight: 600; letter-spacing: 2.5px; text-transform: uppercase;
  padding-bottom: 4px; border-bottom: 1px solid transparent; transition: border-color .25s;
}
.nav ul a:hover, .nav ul a.active { border-color: var(--text); }
.nav .burger { display: none; background: none; border: 0; color: var(--text); font-size: 26px; cursor: pointer; }

/* ---------- hero ---------- */
.hero {
  position: relative; height: 100vh; min-height: 620px;
  display: flex; align-items: flex-end;
  overflow: hidden;
}
.hero .media, .hero video, .hero .bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  background-size: cover; background-position: center;
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.35) 0%, rgba(0,0,0,.15) 45%, rgba(0,0,0,.92) 100%);
}
.hero .inner { position: relative; z-index: 2; padding: 0 42px 96px; max-width: 900px; }
.kicker {
  font-size: 13px; font-weight: 600; letter-spacing: 5px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 14px;
}
h1.display {
  font-family: var(--font-cond);
  font-weight: 600; font-size: clamp(44px, 7.5vw, 92px);
  line-height: 1.02; letter-spacing: 2px; text-transform: uppercase;
}
.hero .sub { margin-top: 18px; font-size: 18px; color: #d6d9dc; max-width: 560px; }
.hero .cta-row { margin-top: 34px; display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; padding: 15px 34px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase;
  border: 1.5px solid var(--text); color: var(--text); background: transparent;
  cursor: pointer; transition: background .25s, color .25s; text-align: center;
}
.btn:hover { background: var(--text); color: #000; }
.btn.solid { background: var(--text); color: #000; }
.btn.solid:hover { background: transparent; color: var(--text); }
.btn.small { padding: 10px 20px; font-size: 11px; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ---------- sections ---------- */
.section { padding: 110px 42px; max-width: 1200px; margin: 0 auto; }
.section.wide { max-width: none; padding-left: 0; padding-right: 0; }
h2.title {
  font-family: var(--font-cond);
  font-size: clamp(30px, 4vw, 48px); font-weight: 600;
  letter-spacing: 3px; text-transform: uppercase; margin-bottom: 18px;
}
.lead { color: var(--muted); font-size: 17px; max-width: 680px; margin-bottom: 48px; }
.rule { border: 0; border-top: 1px solid var(--line); margin: 0 42px; }

/* page hero (subpages) */
.page-hero {
  position: relative; height: 52vh; min-height: 360px;
  display: flex; align-items: flex-end; overflow: hidden;
  background: var(--panel);
}
.page-hero .bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .55; }
.page-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.3), rgba(0,0,0,.95)); }
.page-hero .inner { position: relative; z-index: 2; padding: 0 42px 54px; max-width: 1200px; margin: 0 auto; width: 100%; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- cards / grids ---------- */
.grid { display: grid; gap: 26px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--panel); border: 1px solid var(--line);
  padding: 30px; transition: transform .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,.4); }

/* expertise tiles (home) */
.tile { position: relative; overflow: hidden; min-height: 420px; display: flex; align-items: flex-end; cursor: default; }
.tile .bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .6s ease; }
.tile:hover .bg { transform: scale(1.05); }
.tile::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.1), rgba(0,0,0,.85)); }
.tile .tile-body { position: relative; z-index: 2; padding: 30px; }
.tile h3 { font-family: var(--font-cond); font-size: 26px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 8px; }
.tile p { color: #cfd3d7; font-size: 15px; }

/* about split (home) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split .portrait { border: 1px solid var(--line); }
.split .portrait img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 3/4; }
.split .body p { margin-bottom: 18px; color: #d6d9dc; }

/* ---------- experience timeline ---------- */
.timeline { position: relative; margin-top: 20px; }
.timeline::before { content: ''; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 1px; background: var(--line); }
.t-item { position: relative; padding: 0 0 56px 42px; }
.t-item::before {
  content: ''; position: absolute; left: 0; top: 8px; width: 15px; height: 15px;
  border-radius: 50%; border: 1.5px solid var(--text); background: #000;
}
.t-item .dates { font-size: 12.5px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.t-item h3 { font-family: var(--font-cond); font-size: 28px; letter-spacing: 1.5px; text-transform: uppercase; }
.t-item .org { color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.t-item ul { margin: 14px 0 0 18px; color: #cfd3d7; }
.t-item ul li { margin-bottom: 8px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag {
  font-size: 11px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase;
  border: 1px solid var(--line); padding: 5px 12px; color: var(--muted);
}
.tag.field { border-color: rgba(125,179,255,.5); color: var(--accent); }
.tag.label-open-source { border-color: rgba(110,231,183,.5); color: #6ee7b7; }
.tag.label-proprietary { border-color: rgba(252,165,165,.5); color: #fca5a5; }
.tag.label-saas-live { border-color: rgba(125,179,255,.6); color: var(--accent); }
.tag.label-saas-beta { border-color: rgba(253,224,71,.5); color: #fde047; }

/* ---------- portfolio ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.filters .filter {
  background: none; border: 1px solid var(--line); color: var(--muted);
  padding: 9px 18px; font-size: 11.5px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; cursor: pointer; transition: all .2s; font-family: var(--font);
}
.filters .filter.active, .filters .filter:hover { border-color: var(--text); color: var(--text); }
.disclaimer {
  border-left: 2px solid var(--accent); padding: 14px 20px; margin-bottom: 44px;
  color: var(--muted); font-size: 14.5px; background: var(--panel);
}
.project-card h3 { font-family: var(--font-cond); font-size: 26px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.project-card p { color: #cfd3d7; font-size: 15px; }
.project-card { cursor: pointer; }

/* project modal */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,.8);
  display: none; align-items: center; justify-content: center; padding: 24px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--panel); border: 1px solid var(--line);
  max-width: 640px; width: 100%; max-height: 86vh; overflow-y: auto; padding: 40px; position: relative;
}
.modal .close { position: absolute; top: 14px; right: 18px; background: none; border: 0; color: var(--muted); font-size: 26px; cursor: pointer; }
.modal h3 { font-family: var(--font-cond); font-size: 32px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; }
.modal .desc { color: #cfd3d7; margin: 18px 0 26px; white-space: pre-wrap; }
.modal .btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- personal ---------- */
.hobby { position: relative; overflow: hidden; min-height: 380px; display: flex; align-items: flex-end; }
.hobby .bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .6s ease; }
.hobby:hover .bg { transform: scale(1.06); }
.hobby::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.05), rgba(0,0,0,.88)); }
.hobby .hobby-body { position: relative; z-index: 2; padding: 28px; }
.hobby h3 { font-family: var(--font-cond); font-size: 26px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 6px; }
.hobby p { color: #d6d9dc; font-size: 15px; max-width: 420px; }

/* ---------- calendar ---------- */
.book-grid { display: grid; grid-template-columns: 340px 1fr; gap: 40px; }
.cal { border: 1px solid var(--line); background: var(--panel); padding: 22px; }
.cal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.cal-head button { background: none; border: 1px solid var(--line); color: var(--text); width: 34px; height: 34px; cursor: pointer; }
.cal-head .month { font-family: var(--font-cond); letter-spacing: 2px; text-transform: uppercase; font-size: 18px; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; text-align: center; }
.cal-grid .dow { font-size: 10.5px; letter-spacing: 1px; color: var(--muted); padding: 6px 0; text-transform: uppercase; }
.cal-grid .day {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  font-size: 14px; border: 1px solid transparent; cursor: default; color: #555;
}
.cal-grid .day.open { color: var(--text); border-color: var(--line); cursor: pointer; }
.cal-grid .day.open:hover { border-color: var(--text); }
.cal-grid .day.selected { background: var(--text); color: #000; font-weight: 700; }
.slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; margin-top: 20px; }
.slot {
  border: 1px solid var(--line); background: none; color: var(--text); padding: 13px 0;
  cursor: pointer; font-family: var(--font); font-size: 14px; letter-spacing: 1px;
  transition: background .2s ease, color .2s ease, transform .2s ease, border-color .2s ease;
}
.slot:hover { border-color: var(--text); transform: translateY(-2px); }
.slot.selected, .slot:active { background: var(--text); color: #000; font-weight: 700; }
.cal-grid .day { transition: background .2s ease, border-color .2s ease, color .2s ease; }
.duration-row { display: flex; gap: 10px; margin-bottom: 18px; }

/* booking controls */
.ctrl-row { display: flex; gap: 34px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 30px; }
.ctrl-label {
  display: flex; gap: 8px; align-items: center; margin-bottom: 10px;
  font-size: 11.5px; font-weight: 600; letter-spacing: 2.5px; text-transform: uppercase; color: var(--muted);
}
.ctrl-label svg { flex: none; }

.seg { display: inline-flex; border: 1px solid var(--line); background: var(--panel); }
.seg button {
  background: none; border: 0; border-right: 1px solid var(--line); color: var(--muted);
  padding: 12px 22px; font-family: var(--font); font-size: 13px; font-weight: 600; letter-spacing: 1.5px;
  cursor: pointer; transition: background .25s ease, color .25s ease;
}
.seg button:last-child { border-right: 0; }
.seg button:hover:not(.active) { color: var(--text); background: rgba(255,255,255,.05); }
.seg button.active { background: var(--text); color: #000; }

.tz-picker { position: relative; }
.tz-btn {
  display: flex; align-items: center; gap: 10px; min-width: 250px;
  background: var(--panel); border: 1px solid var(--line); color: var(--text);
  padding: 12px 16px; cursor: pointer; font-family: var(--font); font-size: 14px;
  transition: border-color .25s ease;
}
.tz-btn:hover { border-color: rgba(255,255,255,.5); }
.tz-btn .chev { margin-left: auto; color: var(--muted); transition: transform .25s ease; font-size: 11px; }
.tz-picker.open .chev { transform: rotate(180deg); }
.tz-menu {
  position: absolute; top: calc(100% + 8px); left: 0; z-index: 60; width: 330px;
  background: #0c0f13; border: 1px solid var(--line); box-shadow: 0 20px 60px rgba(0,0,0,.65);
  opacity: 0; transform: translateY(-8px); pointer-events: none;
  transition: opacity .22s ease, transform .22s ease;
}
.tz-picker.open .tz-menu { opacity: 1; transform: none; pointer-events: auto; }
.tz-search {
  width: 100%; background: transparent; border: 0; border-bottom: 1px solid var(--line);
  color: var(--text); padding: 14px 16px; font-family: var(--font); font-size: 14px; outline: none;
}
.tz-list { max-height: 300px; overflow-y: auto; overscroll-behavior: contain; }
.tz-item {
  display: flex; justify-content: space-between; gap: 14px; align-items: baseline;
  padding: 11px 16px; cursor: pointer; font-size: 14px; transition: background .15s ease;
}
.tz-item:hover { background: rgba(255,255,255,.07); }
.tz-item.sel { color: var(--accent); }
.tz-item .off { color: var(--muted); font-size: 12.5px; flex: none; }
.tz-empty { padding: 16px; color: var(--muted); font-size: 13.5px; }

/* week calendar (Apple Calendar style) */
.wk { border: 1px solid var(--line); background: var(--panel); }
.wk-top { display: flex; justify-content: space-between; align-items: center; padding: 20px 22px; flex-wrap: wrap; gap: 14px; }
.wk-title { font-family: var(--font-cond); font-size: 30px; letter-spacing: 2px; text-transform: uppercase; }
.wk-title span { color: var(--muted); font-weight: 500; }
.wk-nav { display: flex; }
.wk-nav button {
  background: none; border: 1px solid var(--line); border-right: 0; color: var(--text);
  padding: 9px 16px; cursor: pointer; font-family: var(--font); font-size: 12.5px; font-weight: 600;
  letter-spacing: 1px; transition: background .2s ease;
}
.wk-nav button:last-child { border-right: 1px solid var(--line); }
.wk-nav button:hover { background: rgba(255,255,255,.08); }
.wk-head { display: grid; grid-template-columns: 58px repeat(7, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.wk-dayhead { padding: 12px 4px; text-align: center; font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); }
.wk-dayhead .num {
  display: inline-flex; width: 27px; height: 27px; margin-left: 6px; align-items: center; justify-content: center;
  border-radius: 50%; font-weight: 700; color: var(--text); font-size: 13px;
}
.wk-dayhead.today .num { background: var(--accent); color: #000; }
.wk-scroll { max-height: 560px; overflow-y: auto; overscroll-behavior: contain; }
.wk-body { display: grid; grid-template-columns: 58px repeat(7, 1fr); }
.wk-hour { height: 64px; font-size: 10.5px; color: var(--muted); text-align: right; padding-right: 8px; transform: translateY(-5px); }
.wk-col {
  position: relative; border-left: 1px solid rgba(255,255,255,.07);
  background-image: repeating-linear-gradient(to bottom, rgba(255,255,255,.06) 0 1px, transparent 1px 64px);
}
.wk-slot {
  position: absolute; left: 3px; right: 3px; z-index: 2; border-radius: 5px;
  background: rgba(125,179,255,.14); border: 1px solid rgba(125,179,255,.55); color: var(--accent);
  font-size: 11.5px; font-weight: 600; letter-spacing: .5px; padding: 3px 7px; overflow: hidden; white-space: nowrap;
  cursor: pointer; transition: background .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.wk-slot:hover { background: var(--accent); color: #000; transform: scale(1.03); box-shadow: 0 6px 18px rgba(125,179,255,.25); z-index: 3; }
@media (max-width: 900px) {
  .wk-head, .wk-body { grid-template-columns: 44px repeat(7, minmax(74px, 1fr)); }
  .wk-outer { overflow-x: auto; }
  .wk-head, .wk-scroll { min-width: 620px; }
}

.step-anim { animation: stepIn .4s cubic-bezier(.22,.8,.3,1) both; }
@keyframes stepIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

.spinner {
  width: 28px; height: 28px; margin: 40px auto; border-radius: 50%;
  border: 2px solid var(--line); border-top-color: var(--text);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* forms */
.form { display: grid; gap: 16px; max-width: 520px; }
.form label { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 6px; }
.form input, .form textarea, .form select {
  width: 100%; background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  padding: 13px 15px; font-family: var(--font); font-size: 15px;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--accent); }
.notice { padding: 14px 18px; border: 1px solid var(--line); background: var(--panel); font-size: 14.5px; }
.notice.ok { border-color: rgba(110,231,183,.6); color: #6ee7b7; }
.notice.err { border-color: rgba(252,165,165,.6); color: #fca5a5; }
.hidden { display: none !important; }

/* ---------- AI chat ---------- */
.chat-wrap { max-width: 760px; margin: 0 auto; }
.chat-box { border: 1px solid var(--line); background: var(--panel); min-height: 420px; max-height: 60vh; overflow-y: auto; padding: 26px; display: flex; flex-direction: column; gap: 16px; }
.msg { max-width: 82%; padding: 13px 17px; font-size: 15px; line-height: 1.55; white-space: pre-wrap; }
.msg.user { align-self: flex-end; background: var(--text); color: #000; }
.msg.bot { align-self: flex-start; background: var(--panel-2); border: 1px solid var(--line); }
.chat-input { display: flex; gap: 12px; margin-top: 16px; }
.chat-input input { flex: 1; background: var(--panel-2); border: 1px solid var(--line); color: var(--text); padding: 15px 17px; font-size: 15px; font-family: var(--font); }
.chat-input input:focus { outline: none; border-color: var(--accent); }
.suggestions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.suggestions button { background: none; border: 1px solid var(--line); color: var(--muted); padding: 8px 14px; font-size: 12.5px; cursor: pointer; font-family: var(--font); }
.suggestions button:hover { color: var(--text); border-color: var(--text); }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 46px 42px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 18px; }
footer .foot-brand { font-family: var(--font-cond); letter-spacing: 5px; text-transform: uppercase; font-size: 18px; }
footer .links { display: flex; gap: 26px; }
footer .links a { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); }
footer .links a:hover { color: var(--text); }

/* ---------- admin ---------- */
.admin-wrap { max-width: 1100px; margin: 0 auto; padding: 120px 42px 80px; }
.admin-nav { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.admin-nav button { background: none; border: 1px solid var(--line); color: var(--muted); padding: 10px 20px; font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; cursor: pointer; font-family: var(--font); }
.admin-nav button.active { border-color: var(--text); color: var(--text); }
.admin-panel { display: none; }
.admin-panel.active { display: block; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th, .admin-table td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.admin-table th { font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); }
.admin-row-actions { display: flex; gap: 8px; }
.content-field { margin-bottom: 22px; }
.content-field textarea { min-height: 90px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav { padding: 18px 22px; }
  .nav ul {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(0,0,0,.96); flex-direction: column; padding: 24px 22px; gap: 20px;
  }
  .nav ul.open { display: flex; }
  .nav .burger { display: block; }
  .section { padding: 70px 22px; }
  .hero .inner, .page-hero .inner { padding-left: 22px; padding-right: 22px; }
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 34px; }
  .book-grid { grid-template-columns: 1fr; }
  .admin-wrap { padding: 100px 22px 60px; }
}