/* ═══════════════════════════════════════════════════════════════
   Pro Video Downloader — shared styles
   ═══════════════════════════════════════════════════════════════ */

:root{
  --accent:#3b82f6;
  --accent-h:#2563eb;
  --accent-soft:#dbeafe;
  --bg:#f8fafc;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --success:#10b981;
  --shadow-sm:0 1px 2px rgba(15,23,42,.04);
  --shadow-md:0 4px 12px rgba(15,23,42,.06);
  --shadow-lg:0 12px 32px rgba(15,23,42,.08);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --container:1180px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter','Segoe UI','Tahoma','Arial',sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-feature-settings:"kern" 1,"liga" 1;
}
body[dir="rtl"]{
  font-family:'Tajawal','Cairo','Segoe UI','Tahoma','Arial',sans-serif;
  line-height:1.8;
}

img{max-width:100%;display:block}
a{color:inherit}
button{font:inherit}

/* ── NAV ────────────────────────────────────────────────────── */
nav{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.78);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid rgba(226,232,240,.7);
  padding:12px 0;
}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;font-size:17px;color:inherit;text-decoration:none;
  transition:opacity .15s;
}
.brand:hover{opacity:.85}
.brand img{width:30px;height:30px;border-radius:7px}
.nav-links{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.nav-links > a{
  color:var(--muted);text-decoration:none;
  font-size:14.5px;font-weight:500;
  padding:8px 12px;border-radius:9px;
  transition:color .15s,background .15s;
}
.nav-links > a:hover{color:var(--text);background:var(--bg)}
.nav-links > a.btn{padding:8px 18px;font-size:14px;color:white}
.nav-links > a.btn:hover{background:var(--accent-h);color:white}

/* ── LANG SWITCH ──────────────────────────────────────────── */
.lang-switch{position:relative}
.lang-btn{
  background:white;border:1px solid var(--border);border-radius:10px;
  padding:8px 14px;font-size:14px;cursor:pointer;
  display:flex;align-items:center;gap:6px;
  color:var(--text);font-weight:600;
  transition:border-color .15s,background .15s;
}
.lang-btn:hover{border-color:var(--accent);background:var(--bg)}
.lang-menu{
  position:absolute;top:calc(100% + 6px);
  background:white;border:1px solid var(--border);border-radius:12px;
  box-shadow:var(--shadow-lg);min-width:170px;padding:6px;
  display:none;z-index:200;
}
body[dir="ltr"] .lang-menu{right:0}
body[dir="rtl"] .lang-menu{left:0}
.lang-switch.open .lang-menu{display:block;animation:fadeUp .15s}
.lang-menu button{
  display:block;width:100%;text-align:start;
  background:none;border:none;padding:9px 14px;
  border-radius:8px;cursor:pointer;font-size:14px;color:var(--text);
  transition:background .12s;
}
.lang-menu button:hover{background:var(--bg)}
.lang-menu button.active{background:var(--accent-soft);color:var(--accent);font-weight:700}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--accent);color:white;
  padding:14px 28px;border-radius:var(--r-md);
  text-decoration:none;font-weight:700;font-size:15.5px;
  box-shadow:0 4px 16px rgba(59,130,246,.25);
  transition:transform .12s ease,box-shadow .2s ease,background .15s;
  border:none;cursor:pointer;line-height:1;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(59,130,246,.35);background:var(--accent-h)}
.btn:active{transform:translateY(0)}
.btn-secondary{
  background:white;color:var(--accent);
  border:1.5px solid var(--border);box-shadow:var(--shadow-sm);
}
.btn-secondary:hover{background:var(--bg);border-color:var(--accent);box-shadow:var(--shadow-md)}
.btn-block{width:100%}
.btn-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ── SECTIONS ─────────────────────────────────────────────── */
section{padding:72px 24px}
.container{max-width:var(--container);margin:0 auto}
.container-narrow{max-width:720px;margin:0 auto}
h1{
  font-size:clamp(30px,4.5vw,46px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;
  margin-bottom:14px;text-align:center;
}
h2{
  font-size:clamp(24px,3.5vw,34px);
  font-weight:800;line-height:1.25;letter-spacing:-.015em;
  text-align:center;margin-bottom:10px;
}
h3{font-size:18px;font-weight:700;margin-bottom:8px;letter-spacing:-.01em}
.section-desc{
  text-align:center;color:var(--muted);
  max-width:580px;margin:0 auto 48px;
  font-size:16px;line-height:1.65;
}
.page-hero{
  padding:64px 24px 48px;text-align:center;
  background:linear-gradient(180deg,var(--accent-soft) 0%,var(--bg) 100%);
}

/* ── CARDS ────────────────────────────────────────────────── */
.card{
  background:var(--card);padding:28px;border-radius:var(--r-lg);
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
}

/* ── FORM ─────────────────────────────────────────────────── */
.form-grid{display:flex;flex-direction:column;gap:14px}
.form-row{display:flex;flex-direction:column;gap:6px}
.form-row label{font-size:13.5px;font-weight:600;color:var(--text)}
.form-row input,.form-row textarea,.form-row select{
  background:white;border:1.5px solid var(--border);border-radius:11px;
  padding:11px 14px;font-size:14.5px;font-family:inherit;color:var(--text);
  transition:border-color .15s,box-shadow .15s;line-height:1.4;
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(59,130,246,.12);
}
.form-row textarea{min-height:130px;resize:vertical;line-height:1.6}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:2px}

.contact-method{
  display:grid;grid-template-columns:1fr 1fr;gap:4px;
  background:var(--bg);padding:4px;border-radius:11px;
}
.contact-method button{
  background:transparent;border:none;padding:9px;border-radius:8px;
  font-weight:600;cursor:pointer;font-size:13.5px;color:var(--muted);
  transition:background .12s,color .12s,box-shadow .15s;
}
.contact-method button.active{background:white;color:var(--accent);box-shadow:var(--shadow-sm)}

.alert{
  padding:13px 18px;border-radius:11px;font-size:14px;
  margin-bottom:14px;display:none;line-height:1.5;
}
.alert.show{display:block;animation:fadeUp .2s}
.alert-success{background:#d1fae5;color:#065f46;border:1px solid #6ee7b7}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}

/* ── PRICING ─────────────────────────────────────────────── */
.plans{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:20px;
}
.plan{
  background:white;border:1.5px solid var(--border);border-radius:var(--r-lg);
  padding:28px 24px;text-align:center;
  transition:transform .15s,box-shadow .2s,border-color .15s;
  display:flex;flex-direction:column;
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.plan.featured{border-color:var(--accent);position:relative;background:linear-gradient(180deg,#f0f7ff 0%,white 100%)}
.plan.featured::before{
  content:"★";position:absolute;top:-14px;
  left:50%;transform:translateX(-50%);
  background:var(--accent);color:white;
  width:30px;height:30px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;
}
.plan h3{font-size:18px}
.plan-price{font-size:42px;font-weight:800;color:var(--accent);margin:10px 0 0;letter-spacing:-.02em}
.plan-period{font-size:13px;color:var(--muted);margin-bottom:4px}
.plan ul{
  list-style:none;margin:20px 0;
  text-align:start;font-size:14px;color:var(--text);
  flex-grow:1;
}
.plan li{
  padding:7px 0;border-bottom:1px dashed var(--border);
  display:flex;align-items:center;gap:8px;
}
.plan li::before{content:"✓";color:var(--success);font-weight:800;font-size:16px}
.plan li:last-child{border-bottom:none}

/* ── DOCS ─────────────────────────────────────────────────── */
.doc-section{
  background:white;padding:24px 28px;border-radius:var(--r-md);
  border:1px solid var(--border);margin-bottom:14px;
}
.doc-section h3{color:var(--accent);margin-bottom:12px;font-size:17px}
.doc-section ol,.doc-section ul{
  padding-inline-start:22px;color:var(--text);
  font-size:14.5px;line-height:1.75;
}
.doc-section li{margin-bottom:5px}
.doc-section p{color:var(--text);font-size:14.5px;line-height:1.75}

/* ── FOOTER ───────────────────────────────────────────────── */
footer{
  background:#0f172a;color:#cbd5e1;
  padding:48px 24px 28px;text-align:center;margin-top:48px;
}
footer .brand{justify-content:center;color:white;margin-bottom:14px}
footer p{font-size:14px;color:#94a3b8;margin-bottom:8px}
footer a{color:#60a5fa;text-decoration:none;transition:color .15s}
footer a:hover{color:#93c5fd;text-decoration:underline}
.copyright{
  margin-top:20px;padding-top:20px;
  border-top:1px solid #1e293b;font-size:13px;color:#64748b;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media(max-width:768px){
  section{padding:48px 16px}
  .page-hero{padding:40px 16px 32px}
  .nav-inner{padding:0 16px}
}
@media(max-width:640px){
  .nav-links > a:not(.btn):not(.lang-btn){display:none}
  .nav-links{gap:8px}
  h1{font-size:28px}
  h2{font-size:22px}
  .plan{padding:24px 18px}
}

/* ── SCROLLBAR (subtle) ───────────────────────────────────── */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:#94a3b8}