:root { --bg: #F3F5F7; --surface: #fff; --ink: #1E2B38; --muted: #66727F; --line: #DCE1E6; --navy: #344B61; --accent: #AC4459; --sel: #1F6FD1; color-scheme: light; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --bg: #12181F; --surface: #1B232C; --ink: #E6EBF0; --muted: #98A4B0; --line: #2E3945; --navy: #4F8FD6; --accent: #D9738A; --sel: #5AA2FF; color-scheme: dark; } }
:root[data-theme="dark"] { --bg: #12181F; --surface: #1B232C; --ink: #E6EBF0; --muted: #98A4B0; --line: #2E3945; --navy: #4F8FD6; --accent: #D9738A; --sel: #5AA2FF; color-scheme: dark; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 16px; background: var(--bg); color: var(--ink);
  font: 15px/1.6 "Tajawal", "Geeza Pro", "Noto Sans Arabic", "Segoe UI", system-ui, sans-serif; }
.card { width: 100%; max-width: 420px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
h1 { font-size: 18px; margin: 0; line-height: 1.4; }
.secret { background: var(--accent); color: #fff; font-weight: 800; border-radius: 6px; padding: 1px 14px; white-space: nowrap; }
.sub { color: var(--muted); margin: 6px 0 18px; }
form { display: grid; gap: 8px; }
label { font-weight: 700; }
input { font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
input#otp { letter-spacing: 6px; font-size: 22px; text-align: center; font-variant-numeric: tabular-nums; }
button { font: inherit; font-weight: 700; border: 0; border-radius: 8px; padding: 10px 12px; background: var(--navy); color: #fff; cursor: pointer; }
button.link { background: none; color: var(--sel); padding: 4px; }
:focus-visible { outline: 2px solid var(--sel); outline-offset: 2px; }
.sent { margin: 0 0 6px; }
.msg { color: var(--accent); min-height: 1.6em; margin: 10px 0 0; }
.foot { color: var(--muted); font-size: 12px; margin: 8px 0 0; }
[hidden] { display: none !important; }