/* ============================================================
   HOSTMANTLE — Main Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ===== CSS Variables ===== */
:root {
  --bg0: #060609;
  --bg1: #0b0b14;
  --bg2: #10101c;
  --bg3: #15151f;
  --bg4: #1c1c2a;
  --bg5: #242436;

  --border1: #1a1a2e;
  --border2: #232336;
  --border3: #2e2e48;

  --green:       #00e676;
  --green-dim:   #00b359;
  --green-glow:  rgba(0,230,118,0.18);
  --green-glow2: rgba(0,230,118,0.35);

  --purple:      #a855f7;
  --purple-dim:  #7c3aed;
  --purple-glow: rgba(168,85,247,0.18);
  --purple-glow2:rgba(168,85,247,0.35);

  --cyan:        #22d3ee;
  --cyan-glow:   rgba(34,211,238,0.18);

  --gold:        #fbbf24;
  --gold-glow:   rgba(251,191,36,0.18);

  --orange:      #fb923c;
  --red:         #f87171;
  --red-dim:     #dc2626;

  --t0: #ffffff;
  --t1: #f0f2f8;
  --t2: #c8d0e0;
  --t3: #8892a4;
  --t4: #5a6477;
  --t5: #363d4c;

  --nav-h:  68px;
  --r-sm:   6px;
  --r-md:   10px;
  --r-lg:   16px;
  --r-xl:   22px;
  --r-full: 9999px;

  --tr:      all 0.25s ease;
  --tr-fast: all 0.15s ease;
  --tr-slow: all 0.5s ease;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.35);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.45);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.55);
  --shadow-g:   0 0 30px rgba(0,230,118,0.22);
  --shadow-p:   0 0 30px rgba(168,85,247,0.22);
}

/* ===== Reset ===== */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family:'Inter',-apple-system,sans-serif;
  background:var(--bg1);
  color:var(--t1);
  line-height:1.6;
  overflow-x:hidden;
}
a { text-decoration:none; color:inherit; transition:var(--tr-fast); }
button { cursor:pointer; font-family:inherit; }
img { max-width:100%; }

::-webkit-scrollbar { width:5px; }
::-webkit-scrollbar-track { background:var(--bg1); }
::-webkit-scrollbar-thumb { background:var(--border3); border-radius:var(--r-full); }
::-webkit-scrollbar-thumb:hover { background:var(--t5); }

/* ===== Gradient Text ===== */
.grad-green {
  background:linear-gradient(135deg, var(--green), var(--cyan));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.grad-purple {
  background:linear-gradient(135deg, var(--purple), var(--cyan));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.grad-gold {
  background:linear-gradient(135deg, var(--gold), var(--orange));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}

/* ===== Navbar ===== */
.navbar {
  position:fixed; top:0; left:0; right:0; height:var(--nav-h);
  background:rgba(11,11,20,0.8);
  backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border1);
  z-index:1000; transition:var(--tr);
}
.navbar.scrolled {
  background:rgba(6,6,9,0.95);
  border-bottom-color:var(--border2);
  box-shadow:var(--shadow-md);
}
.nav-wrap {
  max-width:1320px; margin:0 auto; padding:0 28px;
  height:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.nav-logo {
  display:flex; align-items:center; gap:10px;
  font-size:20px; font-weight:900; letter-spacing:-0.5px; white-space:nowrap;
}
.nav-logo .logo-i {
  width:36px; height:36px;
  background:linear-gradient(135deg,var(--green),var(--cyan));
  border-radius:10px; display:flex; align-items:center; justify-content:center;
  font-size:17px; box-shadow:var(--shadow-g); flex-shrink:0;
}
.nav-logo .logo-txt { background:linear-gradient(135deg,var(--green),var(--cyan)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }

.nav-links { display:flex; align-items:center; gap:2px; list-style:none; }
.nav-links a {
  padding:7px 15px; border-radius:var(--r-full);
  color:var(--t3); font-size:14px; font-weight:500;
}
.nav-links a:hover, .nav-links a.active { color:var(--t0); background:var(--bg4); }
.nav-links a.active { color:var(--green); }

.nav-right { display:flex; align-items:center; gap:10px; }

.btn-ghost-nav {
  padding:7px 16px; border-radius:var(--r-full);
  border:1px solid var(--border2); background:transparent;
  color:var(--t2); font-size:13px; font-weight:500; transition:var(--tr-fast);
}
.btn-ghost-nav:hover { border-color:var(--green); color:var(--green); background:var(--green-glow); }

.btn-primary-nav {
  padding:7px 16px; border-radius:var(--r-full); border:none;
  background:linear-gradient(135deg,var(--green),var(--green-dim));
  color:#000; font-size:13px; font-weight:700; transition:var(--tr-fast);
}
.btn-primary-nav:hover { box-shadow:0 0 20px var(--green-glow2); transform:translateY(-1px); }

.profile-avatar {
  width:36px; height:36px; border-radius:var(--r-full);
  background:linear-gradient(135deg,var(--green),var(--cyan));
  display:flex; align-items:center; justify-content:center;
  font-size:14px; font-weight:800; color:#000;
  border:2px solid var(--border2); cursor:pointer; transition:var(--tr-fast); overflow:hidden;
}
.profile-avatar:hover { border-color:var(--green); box-shadow:var(--shadow-g); }
.profile-avatar img { width:100%; height:100%; object-fit:cover; }

.hamburger {
  display:none; flex-direction:column; gap:5px;
  background:transparent; border:none; padding:7px; border-radius:var(--r-md);
}
.hamburger span {
  display:block; width:22px; height:2px;
  background:var(--t2); border-radius:var(--r-full); transition:var(--tr);
}
.hamburger.open span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity:0; transform:translateX(-10px); }
.hamburger.open span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

.mobile-menu {
  display:none;
  position:fixed; top:var(--nav-h); left:0; right:0;
  background:rgba(6,6,9,0.97); backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border2); z-index:999;
  padding:14px 20px; flex-direction:column; gap:4px;
  opacity:0; transform:translateY(-8px); transition:var(--tr);
  pointer-events:none;
}
.mobile-menu.open { display:flex; opacity:1; transform:translateY(0); pointer-events:all; }
.mobile-menu a {
  padding:12px 14px; border-radius:var(--r-md);
  color:var(--t2); font-size:15px; font-weight:500;
  display:flex; align-items:center; gap:12px;
}
.mobile-menu a:hover { background:var(--bg4); color:var(--t0); }
.mobile-menu .mm-divider { height:1px; background:var(--border1); margin:6px 0; }

/* ===== Buttons ===== */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:11px 22px; border-radius:var(--r-md);
  font-size:14px; font-weight:600; border:none; cursor:pointer;
  text-decoration:none; white-space:nowrap; transition:var(--tr); line-height:1;
}
.btn-lg { padding:14px 28px; font-size:15px; border-radius:var(--r-lg); }
.btn-sm { padding:7px 14px; font-size:12px; border-radius:var(--r-sm); }
.btn-full { width:100%; }

.btn-green {
  background:linear-gradient(135deg,var(--green),var(--green-dim));
  color:#000; box-shadow:0 4px 18px var(--green-glow);
}
.btn-green:hover { transform:translateY(-2px); box-shadow:0 8px 28px var(--green-glow2); }
.btn-green:active { transform:translateY(0); }

.btn-purple {
  background:linear-gradient(135deg,var(--purple),var(--purple-dim));
  color:#fff; box-shadow:0 4px 18px var(--purple-glow);
}
.btn-purple:hover { transform:translateY(-2px); box-shadow:0 8px 28px var(--purple-glow2); }

.btn-cyan {
  background:linear-gradient(135deg,var(--cyan),#0ea5e9);
  color:#000; box-shadow:0 4px 18px var(--cyan-glow);
}
.btn-cyan:hover { transform:translateY(-2px); }

.btn-gold {
  background:linear-gradient(135deg,var(--gold),var(--orange));
  color:#000; box-shadow:0 4px 18px var(--gold-glow);
}
.btn-gold:hover { transform:translateY(-2px); }

.btn-outline {
  background:transparent; border:1px solid var(--border2); color:var(--t2);
}
.btn-outline:hover { border-color:var(--green); color:var(--green); background:var(--green-glow); transform:translateY(-1px); }

.btn-outline-green {
  background:transparent; border:1px solid var(--green); color:var(--green);
}
.btn-outline-green:hover { background:var(--green-glow); transform:translateY(-1px); }

.btn-danger { background:linear-gradient(135deg,var(--red),var(--red-dim)); color:#fff; }
.btn-danger:hover { transform:translateY(-1px); box-shadow:0 4px 18px rgba(248,113,113,0.3); }

.btn-ghost-sm {
  background:transparent; border:none; color:var(--t3);
  padding:6px 10px; border-radius:var(--r-sm); font-size:13px;
}
.btn-ghost-sm:hover { background:var(--bg4); color:var(--t1); }

/* ===== Badges ===== */
.badge {
  display:inline-flex; align-items:center; gap:5px;
  padding:3px 10px; border-radius:var(--r-full);
  font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:0.5px;
}
.badge-green  { background:var(--green-glow);  color:var(--green);  border:1px solid rgba(0,230,118,0.3); }
.badge-purple { background:var(--purple-glow); color:#c084fc;      border:1px solid rgba(168,85,247,0.3); }
.badge-cyan   { background:var(--cyan-glow);   color:var(--cyan);  border:1px solid rgba(34,211,238,0.3); }
.badge-gold   { background:var(--gold-glow);   color:var(--gold);  border:1px solid rgba(251,191,36,0.3); }
.badge-red    { background:rgba(248,113,113,0.15); color:var(--red); border:1px solid rgba(248,113,113,0.3); }

/* ===== Status ===== */
.dot {
  width:8px; height:8px; border-radius:var(--r-full); display:inline-block; flex-shrink:0;
}
.dot-online  { background:var(--green); box-shadow:0 0 6px var(--green); animation:pulse-g 2s infinite; }
.dot-offline { background:var(--t5); }
.dot-starting{ background:var(--gold); animation:pulse-y 1s infinite; }
.dot-stopping{ background:var(--red);  animation:pulse-r 1s infinite; }

@keyframes pulse-g { 0%,100%{box-shadow:0 0 5px var(--green)} 50%{box-shadow:0 0 14px var(--green),0 0 24px var(--green-glow)} }
@keyframes pulse-y { 0%,100%{box-shadow:0 0 5px var(--gold)}  50%{box-shadow:0 0 14px var(--gold)} }
@keyframes pulse-r { 0%,100%{box-shadow:0 0 5px var(--red)}   50%{box-shadow:0 0 14px var(--red)} }

/* ===== Progress Bar ===== */
.progress { height:5px; background:var(--bg5); border-radius:var(--r-full); overflow:hidden; }
.progress-bar {
  height:100%; border-radius:var(--r-full);
  background:linear-gradient(90deg,var(--green),var(--cyan));
  transition:width 0.8s ease; position:relative; overflow:hidden;
}
.progress-bar::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.25),transparent);
  animation:shimmer 2s infinite;
}
@keyframes shimmer { 0%{transform:translateX(-100%)} 100%{transform:translateX(200%)} }

/* ===== Form Elements ===== */
.f-group { display:flex; flex-direction:column; gap:6px; }
.f-label {
  font-size:12px; font-weight:700; color:var(--t3);
  text-transform:uppercase; letter-spacing:0.6px;
}
.f-input, .f-select, .f-textarea {
  width:100%; padding:11px 14px;
  background:var(--bg2); border:1px solid var(--border2);
  border-radius:var(--r-md); color:var(--t1);
  font-size:14px; font-family:inherit; outline:none; transition:var(--tr-fast);
}
.f-input:focus, .f-select:focus, .f-textarea:focus {
  border-color:var(--green); background:var(--bg3);
  box-shadow:0 0 0 3px var(--green-glow);
}
.f-input::placeholder { color:var(--t5); }
.f-textarea { resize:vertical; min-height:90px; }
.f-select {
  cursor:pointer; appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235a6477' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 12px center;
  padding-right:38px;
}
.f-select option { background:var(--bg3); }

/* Toggle Switch */
.toggle-wrap { display:flex; align-items:center; gap:10px; cursor:pointer; }
.toggle { position:relative; width:42px; height:22px; }
.toggle input { opacity:0; width:0; height:0; }
.toggle-slider {
  position:absolute; inset:0;
  background:var(--bg5); border:1px solid var(--border2);
  border-radius:var(--r-full); cursor:pointer; transition:var(--tr);
}
.toggle-slider::before {
  content:''; position:absolute; width:15px; height:15px;
  left:3px; top:50%; transform:translateY(-50%);
  background:var(--t5); border-radius:var(--r-full); transition:var(--tr);
}
.toggle input:checked + .toggle-slider { background:var(--green-glow); border-color:var(--green); }
.toggle input:checked + .toggle-slider::before { transform:translate(20px,-50%); background:var(--green); box-shadow:0 0 8px var(--green); }

/* ===== Cards ===== */
.card {
  background:var(--bg3); border:1px solid var(--border1);
  border-radius:var(--r-lg); transition:var(--tr);
}
.card:hover { border-color:var(--border2); }
.card-hover:hover { border-color:var(--green); box-shadow:var(--shadow-g); transform:translateY(-3px); }

/* ===== Dropdown ===== */
.dropdown { position:relative; }
.dropdown-menu {
  position:absolute; top:calc(100% + 8px); right:0; min-width:190px;
  background:var(--bg3); border:1px solid var(--border2);
  border-radius:var(--r-md); padding:6px; z-index:200;
  box-shadow:var(--shadow-lg); display:none;
  animation:scale-in 0.15s ease;
}
.dropdown-menu.open { display:block; }
.dd-item {
  display:flex; align-items:center; gap:9px;
  padding:9px 11px; border-radius:var(--r-sm);
  font-size:14px; color:var(--t2); cursor:pointer; transition:var(--tr-fast);
}
.dd-item:hover { background:var(--bg4); color:var(--t0); }
.dd-item.danger:hover { background:rgba(248,113,113,0.12); color:var(--red); }
.dd-divider { height:1px; background:var(--border1); margin:5px 0; }

/* ===== Tabs ===== */
.tabs-wrap {
  display:flex; gap:2px; padding:4px;
  background:var(--bg2); border-radius:var(--r-lg);
  border:1px solid var(--border1); overflow-x:auto;
}
.tab-btn {
  padding:8px 14px; border-radius:var(--r-md); border:none;
  background:transparent; color:var(--t3);
  font-size:13px; font-weight:500; cursor:pointer; transition:var(--tr-fast);
  white-space:nowrap; flex-shrink:0;
}
.tab-btn:hover { color:var(--t1); background:var(--bg3); }
.tab-btn.active { background:var(--bg4); color:var(--t0); border:1px solid var(--border2); }

.tab-panel { display:none; }
.tab-panel.active { display:block; animation:fade-in 0.2s ease; }

/* ===== Modal ===== */
.overlay {
  position:fixed; inset:0; background:rgba(0,0,0,0.72);
  backdrop-filter:blur(8px); z-index:2000;
  display:none; align-items:center; justify-content:center; padding:20px;
}
.overlay.open { display:flex; animation:fade-in 0.2s ease; }
.modal {
  background:var(--bg2); border:1px solid var(--border2);
  border-radius:var(--r-xl); padding:28px; max-width:500px; width:100%;
  max-height:90vh; overflow-y:auto; animation:scale-in 0.25s ease; position:relative;
}
.modal-hd { display:flex; justify-content:space-between; align-items:center; margin-bottom:22px; }
.modal-close {
  width:30px; height:30px; border-radius:var(--r-sm);
  background:var(--bg4); border:1px solid var(--border2);
  color:var(--t3); cursor:pointer; display:flex; align-items:center; justify-content:center;
  font-size:17px; line-height:1; transition:var(--tr-fast);
}
.modal-close:hover { background:var(--bg5); color:var(--t0); }

/* ===== Toast ===== */
.toast-wrap {
  position:fixed; bottom:22px; right:22px;
  display:flex; flex-direction:column; gap:9px; z-index:9999;
}
.toast {
  min-width:290px; padding:13px 16px;
  background:var(--bg3); border:1px solid var(--border2);
  border-radius:var(--r-md); display:flex; align-items:center; gap:11px;
  box-shadow:var(--shadow-lg); animation:slide-right 0.3s ease forwards;
}
.toast.success { border-left:3px solid var(--green); }
.toast.error   { border-left:3px solid var(--red); }
.toast.info    { border-left:3px solid var(--cyan); }
.toast.warning { border-left:3px solid var(--gold); }
.toast-msg { font-size:13px; font-weight:500; flex:1; }
.toast-x { background:none; border:none; color:var(--t4); font-size:17px; cursor:pointer; line-height:1; }
.toast-x:hover { color:var(--t1); }

/* ===== Layout ===== */
.container { max-width:1300px; margin:0 auto; padding:0 28px; }
.container-sm { max-width:820px; margin:0 auto; padding:0 28px; }
.section { padding:90px 0; }
.section-sm { padding:55px 0; }

.sec-hd { text-align:center; margin-bottom:60px; }
.eyebrow {
  display:inline-flex; align-items:center; gap:7px;
  font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:1px;
  color:var(--green); margin-bottom:14px;
}
.eyebrow-dot {
  width:6px; height:6px; border-radius:var(--r-full);
  background:var(--green); box-shadow:0 0 8px var(--green);
}
.sec-hd h2 {
  font-size:clamp(26px,4.5vw,46px); font-weight:800;
  letter-spacing:-1px; margin-bottom:14px;
}
.sec-hd p { font-size:17px; color:var(--t3); max-width:580px; margin:0 auto; line-height:1.75; }

/* ===== Footer ===== */
.footer { background:var(--bg0); border-top:1px solid var(--border1); padding:56px 0 28px; }
.footer-grid {
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:44px; margin-bottom:44px;
}
.footer-brand p { font-size:13px; color:var(--t3); line-height:1.7; margin-top:13px; max-width:260px; }
.footer-socials { display:flex; gap:8px; margin-top:16px; }
.social-btn {
  width:34px; height:34px; border-radius:var(--r-sm);
  background:var(--bg3); border:1px solid var(--border2);
  display:flex; align-items:center; justify-content:center;
  font-size:15px; cursor:pointer; transition:var(--tr-fast);
}
.social-btn:hover { border-color:var(--green); background:var(--green-glow); transform:translateY(-2px); }
.footer-col h4 {
  font-size:12px; font-weight:700; text-transform:uppercase;
  letter-spacing:0.5px; color:var(--t3); margin-bottom:14px;
}
.footer-col ul { list-style:none; display:flex; flex-direction:column; gap:9px; }
.footer-col a { font-size:13px; color:var(--t4); transition:var(--tr-fast); }
.footer-col a:hover { color:var(--green); padding-left:4px; }
.footer-bottom {
  border-top:1px solid var(--border1); padding-top:22px;
  display:flex; justify-content:space-between; align-items:center;
  font-size:12px; color:var(--t5);
}

/* ===== Animations ===== */
@keyframes float    { 0%,100%{transform:translateY(0)}   50%{transform:translateY(-18px)} }
@keyframes float2   { 0%,100%{transform:translateY(0) rotate(0)} 50%{transform:translateY(-12px) rotate(8deg)} }
@keyframes glow-p   { 0%,100%{opacity:0.4} 50%{opacity:0.9} }
@keyframes fade-in  { from{opacity:0} to{opacity:1} }
@keyframes fade-up  { from{opacity:0;transform:translateY(28px)} to{opacity:1;transform:translateY(0)} }
@keyframes scale-in { from{opacity:0;transform:scale(0.88)} to{opacity:1;transform:scale(1)} }
@keyframes slide-right { from{opacity:0;transform:translateX(24px)} to{opacity:1;transform:translateX(0)} }
@keyframes spin     { from{transform:rotate(0deg)} to{transform:rotate(360deg)} }
@keyframes blink    { 0%,100%{opacity:1} 50%{opacity:0} }
@keyframes particle { 0%{transform:translateY(0) rotate(0);opacity:0} 10%{opacity:0.7} 90%{opacity:0.3} 100%{transform:translateY(-110vh) rotate(720deg);opacity:0} }

.anim-fade-up   { animation:fade-up 0.6s ease both; }
.anim-float     { animation:float  6s ease-in-out infinite; }
.anim-float2    { animation:float2 8s ease-in-out infinite; }
.anim-spin      { animation:spin 1s linear infinite; }

.reveal {
  opacity:0; transform:translateY(36px);
  transition:opacity 0.65s ease, transform 0.65s ease;
}
.reveal.in { opacity:1; transform:translateY(0); }
.reveal-d1 { transition-delay:0.1s; }
.reveal-d2 { transition-delay:0.2s; }
.reveal-d3 { transition-delay:0.3s; }
.reveal-d4 { transition-delay:0.4s; }
.reveal-d5 { transition-delay:0.5s; }

/* ===== Misc utils ===== */
.hidden   { display:none !important; }
.w-full   { width:100%; }
.tc       { text-align:center; }
.tr       { text-align:right; }
.flex     { display:flex; }
.flex-col { flex-direction:column; }
.aic      { align-items:center; }
.jcc      { justify-content:center; }
.jcsb     { justify-content:space-between; }
.gap-4    { gap:4px; }
.gap-8    { gap:8px; }
.gap-12   { gap:12px; }
.gap-16   { gap:16px; }
.gap-20   { gap:20px; }
.gap-24   { gap:24px; }
.gap-32   { gap:32px; }
.mt-8     { margin-top:8px; }
.mt-12    { margin-top:12px; }
.mt-16    { margin-top:16px; }
.mt-20    { margin-top:20px; }
.mt-24    { margin-top:24px; }
.mt-32    { margin-top:32px; }
.mt-40    { margin-top:40px; }
.mb-8     { margin-bottom:8px; }
.mb-16    { margin-bottom:16px; }
.mb-24    { margin-bottom:24px; }
.mb-32    { margin-bottom:32px; }
.c-green  { color:var(--green); }
.c-red    { color:var(--red); }
.c-gold   { color:var(--gold); }
.c-cyan   { color:var(--cyan); }
.c-purple { color:#c084fc; }
.c-muted  { color:var(--t4); }
.c-dim    { color:var(--t3); }
.mono     { font-family:'JetBrains Mono',monospace; }
.fw-800   { font-weight:800; }
.fw-700   { font-weight:700; }
.fs-12    { font-size:12px; }
.fs-13    { font-size:13px; }
.fs-14    { font-size:14px; }

/* ===== Responsive ===== */
@media(max-width:1024px) { .footer-grid { grid-template-columns:1fr 1fr; } }
@media(max-width:768px) {
  .nav-links,.nav-auth { display:none; }
  .hamburger { display:flex; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:28px; }
  .footer-bottom { flex-direction:column; gap:8px; text-align:center; }
}
@media(max-width:540px) {
  .container { padding:0 16px; }
  .section { padding:60px 0; }
  .footer-grid { grid-template-columns:1fr; }
}

/* ===== AI Chat Widget ===== */
.chat-toggle {
  position:fixed; bottom:24px; right:24px; z-index:9998;
  width:64px; height:64px; border-radius:50%;
  background:linear-gradient(135deg,var(--green),var(--cyan));
  border:none; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 24px rgba(0,230,118,0.45), 0 0 0 1px rgba(0,230,118,0.2);
  transition:all 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
.chat-toggle::before {
  content: '';
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--red);
  border: 2px solid var(--bg1);
  z-index: 2;
  transition: background 0.3s ease;
}

.chat-toggle.ai-online::before {
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse-green 2s infinite;
}

.chat-toggle.ai-offline::before {
  background: var(--red);
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 8px var(--green); }
  50% { box-shadow: 0 0 16px var(--green), 0 0 24px var(--green-glow); }
}

.chat-toggle::after {
  content:''; position:absolute; inset:-4px;
  border-radius:50%; border:2px solid rgba(0,230,118,0.25);
  animation:chat-ring 2.4s ease-out infinite;
}
@keyframes chat-ring {
  0% { transform:scale(1); opacity:0.6; }
  100% { transform:scale(1.6); opacity:0; }
}
.chat-toggle:hover {
  transform:scale(1.12) translateY(-2px);
  box-shadow:0 10px 36px rgba(0,230,118,0.6), 0 0 0 1px rgba(0,230,118,0.3);
}
.chat-toggle:active { transform:scale(0.95); }
.chat-toggle svg {
  width:28px; height:28px; fill:#000;
  filter:drop-shadow(0 1px 2px rgba(0,0,0,0.1));
  transition:transform 0.3s ease;
}
.chat-toggle.open svg { transform:rotate(180deg); }

.chat-window {
  position:fixed; bottom:100px; right:24px; z-index:9997;
  width:400px; max-height:580px; height:calc(100vh - 160px);
  background:var(--bg2);
  border:1px solid var(--border2);
  border-radius:var(--r-xl);
  box-shadow:0 24px 80px rgba(0,0,0,0.7), 0 0 0 1px rgba(0,230,118,0.08);
  display:flex; flex-direction:column;
  opacity:0; transform:translateY(20px) scale(0.88);
  pointer-events:none;
  transition:all 0.35s cubic-bezier(0.34,1.56,0.64,1);
  overflow:hidden;
}
.chat-window.open {
  opacity:1; transform:translateY(0) scale(1);
  pointer-events:all;
}

.chat-header {
  padding:16px 18px;
  background:linear-gradient(135deg,var(--bg3),var(--bg4));
  border-bottom:1px solid var(--border1);
  border-radius:var(--r-xl) var(--r-xl) 0 0;
  display:flex; align-items:center; gap:10px;
  position:relative; z-index:2;
}
.chat-avatar {
  width:38px; height:38px; border-radius:50%;
  background:linear-gradient(135deg,var(--green),var(--cyan));
  display:flex; align-items:center; justify-content:center;
  font-size:18px; flex-shrink:0;
  box-shadow:0 2px 8px rgba(0,230,118,0.3);
}
.chat-info { flex:1; }
.chat-info h4 {
  font-size:14px; font-weight:700; color:var(--t1);
  margin:0; letter-spacing:-0.2px;
}
.chat-info .status {
  display:flex; align-items:center; gap:5px;
  font-size:11px; color:var(--t3);
}
.chat-info .status::before {
  content:''; width:7px; height:7px; border-radius:50%;
  background:var(--green); box-shadow:0 0 8px var(--green);
}

.chat-close {
  background:transparent; border:none; cursor:pointer;
  width:32px; height:32px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  color:var(--t3); font-size:20px; line-height:1;
  transition:all 0.2s ease;
}
.chat-close:hover { background:var(--bg5); color:var(--t1); }

.chat-messages {
  flex:1; overflow-y:auto;
  padding:18px; display:flex; flex-direction:column; gap:12px;
  background:var(--bg0);
}
.chat-messages::-webkit-scrollbar { width:5px; }
.chat-messages::-webkit-scrollbar-track { background:transparent; }
.chat-messages::-webkit-scrollbar-thumb {
  background:var(--border3); border-radius:var(--r-full);
}

.chat-message {
  display:flex; gap:9px;
  animation:message-in 0.3s ease both;
  max-width:85%;
}
@keyframes message-in {
  from { opacity:0; transform:translateY(10px); }
  to { opacity:1; transform:translateY(0); }
}

.chat-message.bot { align-self:flex-start; }
.chat-message.user { align-self:flex-end; flex-direction:row-reverse; }

.chat-message-avatar {
  width:30px; height:30px; border-radius:50%;
  flex-shrink:0; display:flex; align-items:center; justify-content:center;
  font-size:14px; margin-top:2px;
}
.chat-message.bot .chat-message-avatar {
  background:linear-gradient(135deg,var(--green),var(--cyan));
  box-shadow:0 0 10px rgba(0,230,118,0.2);
}
.chat-message.user .chat-message-avatar {
  background:linear-gradient(135deg,var(--purple),var(--purple-dim));
}

.chat-message-content {
  padding:11px 15px;
  border-radius:18px;
  font-size:13.5px; line-height:1.65;
  word-wrap:break-word;
}
.chat-message.bot .chat-message-content {
  background:var(--bg3);
  border:1px solid var(--border1);
  color:var(--t2);
  border-bottom-left-radius:5px;
}
.chat-message.user .chat-message-content {
  background:linear-gradient(135deg,var(--green),var(--green-dim));
  color:#000;
  border-bottom-right-radius:5px;
  font-weight:500;
}
.chat-message-content a {
  color:var(--green); text-decoration:underline;
}
.chat-message-content code {
  background:rgba(0,230,118,0.12); color:var(--green);
  padding:2px 6px; border-radius:4px; font-size:12px;
  font-family:'JetBrains Mono',monospace;
}
.chat-message-content strong {
  color:var(--t1); font-weight:700;
}

.chat-typing {
  display:flex; gap:4px; padding:14px 16px;
  background:var(--bg3); border:1px solid var(--border1);
  border-radius:18px; border-bottom-left-radius:5px;
  align-self:flex-start;
  width:fit-content;
}
.chat-typing-dot {
  width:7px; height:7px; border-radius:50%;
  background:var(--t4);
  animation:typing 1.4s infinite;
}
.chat-typing-dot:nth-child(2) { animation-delay:0.2s; }
.chat-typing-dot:nth-child(3) { animation-delay:0.4s; }
@keyframes typing {
  0%,60%,100% { transform:translateY(0); opacity:0.4; }
  30% { transform:translateY(-7px); opacity:1; }
}

.chat-input-area {
  padding:14px 16px;
  border-top:1px solid var(--border1);
  display:flex; gap:10px;
  background:var(--bg2);
  position:relative; z-index:2;
}
.chat-input {
  flex:1; padding:11px 16px;
  background:var(--bg3);
  border:1px solid var(--border2);
  border-radius:var(--r-full);
  color:var(--t1); font-size:13.5px;
  outline:none; transition:all 0.2s ease;
  font-family:inherit;
}
.chat-input:focus {
  border-color:var(--green);
  box-shadow:0 0 0 3px var(--green-glow);
  background:var(--bg4);
}
.chat-input::placeholder { color:var(--t5); }

.chat-send {
  width:40px; height:40px; border-radius:50%;
  background:linear-gradient(135deg,var(--green),var(--cyan));
  border:none; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  transition:all 0.2s ease;
  flex-shrink:0;
}
.chat-send:hover {
  transform:scale(1.08);
  box-shadow:0 4px 16px rgba(0,230,118,0.4);
}
.chat-send:active { transform:scale(0.92); }
.chat-send svg { width:18px; height:18px; fill:#000; }

.chat-tooltip {
  position:absolute; right:76px; bottom:20px;
  background:var(--bg3); border:1px solid var(--border2);
  padding:8px 14px; border-radius:var(--r-lg);
  font-size:12px; color:var(--t2); white-space:nowrap;
  box-shadow:var(--shadow-sm);
  animation:chat-tooltip-in 0.4s ease both;
  animation-delay:1.5s;
  opacity:0;
  pointer-events:none;
}
.chat-tooltip::after {
  content:''; position:absolute; right:-6px; top:50%;
  transform:translateY(-50%);
  width:0; height:0; border-style:solid;
  border-width:6px 0 6px 8px; border-color:transparent transparent transparent var(--bg3);
}
.chat-tooltip.hidden { display:none; }
@keyframes chat-tooltip-in {
  from { opacity:0; transform:translateX(10px); }
  to { opacity:1; transform:translateX(0); }
}

@media(max-width:540px) {
  .chat-window {
    width:calc(100% - 32px);
    right:16px; bottom:90px;
    max-height:calc(100vh - 120px);
    border-radius:var(--r-lg);
  }
  .chat-toggle { right:16px; bottom:16px; width:56px; height:56px; }
  .chat-tooltip { display:none; }
}