/* ============================================================
   Reusable components — buttons, cards, modal, toasts, nav, tilt.
   ============================================================ */

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.72rem 1.3rem;border-radius:999px;border:1px solid transparent;
  font-size:.94rem;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--dur-fast) var(--ease-out),
             box-shadow var(--dur-fast),background var(--dur-fast),
             border-color var(--dur-fast),color var(--dur-fast);
}
.btn-sm{padding:.5rem 1rem;font-size:.85rem}
.btn-lg{padding:.9rem 1.7rem;font-size:1rem}
.btn-block{width:100%}
.btn-primary{background:var(--grad);color:#04140d;box-shadow:0 10px 32px -12px var(--glow-green)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 46px -14px var(--glow-green)}
.btn-ghost{background:var(--surface);border-color:var(--border-strong);color:var(--text)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--accent);transform:translateY(-3px)}
.btn:disabled,.btn.is-loading{opacity:.65;cursor:not-allowed;transform:none}

.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;flex:none;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  color:var(--text-dim);cursor:pointer;font-size:.85rem;
  transition:background var(--dur-fast),color var(--dur-fast),
             border-color var(--dur-fast),transform var(--dur-fast);
}
.icon-btn:hover{background:rgba(255,255,255,.08);border-color:rgba(0,242,148,.35);color:var(--accent)}

.spinner{
  display:inline-block;width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:currentColor;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 3D tilt card ---------- */
.tilt-card{
  position:relative;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);
  transform-style:preserve-3d;
  transition:transform var(--dur) var(--ease-out),
             border-color var(--dur),box-shadow var(--dur);
  will-change:transform;
}
.tilt-card.is-tilting{border-color:var(--border-accent);box-shadow:var(--shadow-glow)}
.tilt-spotlight{
  position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  background:radial-gradient(circle at var(--spot-x,50%) var(--spot-y,50%),
    rgba(0,242,148,.13),transparent 55%);
  transition:opacity var(--dur);
}
.tilt-card.is-tilting .tilt-spotlight{opacity:1}
.tilt-inner{position:relative;transform:translateZ(24px);height:100%}

/* ---------- cursor glow & scroll progress ---------- */
.cursor-glow{
  position:fixed;top:0;left:0;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,242,148,.13),transparent 65%);
  pointer-events:none;z-index:1;opacity:0;
  transition:opacity .5s ease;
}
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:200;background:transparent}
.scroll-progress-fill{display:block;height:100%;background:var(--grad);transition:width .1s linear}

/* ---------- navbar ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:120;
  border-bottom:1px solid transparent;
  transition:background var(--dur),border-color var(--dur);
}
.site-header.is-scrolled{
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--border);
}
.main-nav{
  max-width:var(--max-w);margin-inline:auto;height:var(--nav-h);
  padding-inline:var(--gutter);display:flex;align-items:center;gap:1.4rem;
}
.brand{display:flex;align-items:center;gap:.75rem;font-family:var(--font-display);font-weight:700;font-size:1.02rem;color:#fff;letter-spacing:-.01em}
.brand-mark{
  display:inline-grid;place-items:center;width:32px;height:32px;border-radius:8px;flex:none;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  color:var(--accent);font-size:.78rem;font-weight:800;font-family:var(--font-mono);
  transition:all var(--dur-fast);
}
.brand:hover .brand-mark{
  border-color:rgba(0,242,148,.35);background:rgba(0,242,148,.08);
}
.nav-links{display:flex;gap:.4rem;margin-left:auto}
.nav-link{
  display:block;padding:.45rem .85rem;border-radius:999px;
  font-size:.92rem;font-weight:500;color:var(--text-dim);
  transition:color var(--dur-fast),background var(--dur-fast);
}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link.is-active{color:var(--accent);background:var(--accent-soft)}
.nav-actions{display:flex;align-items:center;gap:.6rem;margin-left:auto}
.nav-links + .nav-actions{margin-left:0}
.nav-talk-btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.48rem 1.15rem;border-radius:999px;
  background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#d946ef 100%);
  color:#fff;font-size:.82rem;font-weight:700;
  box-shadow:0 4px 18px rgba(139,92,246,.45);
  transition:gap var(--dur-fast),transform var(--dur-fast),box-shadow var(--dur-fast);
}
.nav-talk-btn:hover{
  gap:.75rem;transform:translateY(-2px);box-shadow:0 6px 24px rgba(139,92,246,.65);
}
.nav-drawer-cta{display:none}
.nav-burger{display:none}

@media (max-width:820px){
  .nav-talk-desktop{display:none!important}
  .nav-palette{display:none!important}
  .nav-burger{display:inline-flex!important}
  .brand-text{display:inline-block!important;font-size:.95rem!important;font-weight:700}
}

/* ---------- slanted gradient platform band ---------- */
.marquee-band{
  position:relative;overflow:hidden;
  margin-block:-26px;padding-block:26px;
  pointer-events:none;z-index:5;
}
.marquee{
  overflow:hidden;padding:1.15rem 0;
  background:var(--grad);
  transform:rotate(-1.6deg) scaleX(1.06);
  box-shadow:0 18px 50px -18px var(--glow-green);
}
.marquee-track{display:flex;gap:3.4rem;width:max-content;animation:marquee 32s linear infinite}
.marquee-track span{
  display:inline-flex;align-items:center;gap:.6rem;white-space:nowrap;
  font-family:var(--font-display);font-size:1.02rem;font-weight:800;
  text-transform:uppercase;letter-spacing:.04em;color:#04140d;
}
.marquee-track span i{font-size:1.15rem;opacity:.85}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- progress bars ---------- */
.bar-list{display:grid;gap:.85rem}
.bar-meta{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.35rem}
.bar-label{font-size:.88rem;color:var(--text-dim);font-weight:500}
.bar-value{font-family:var(--font-mono);font-size:.75rem;color:var(--text-faint)}
.bar-track{height:7px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.bar-fill{
  display:block;height:100%;border-radius:99px;background:var(--grad);
  box-shadow:0 0 12px rgba(0,242,148,.45);
  transition:width 1.3s var(--ease-out);
}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:var(--gutter)}
.modal-backdrop{
  position:absolute;inset:0;background:rgba(3,8,6,.82);
  backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);
  animation:fadeIn .25s;
}
@keyframes fadeIn{from{opacity:0}}
.modal-panel{
  position:relative;width:min(720px,100%);max-height:86vh;overflow-y:auto;
  background:var(--bg-alt);border:1px solid var(--border-strong);
  border-radius:var(--radius-lg);padding:2.2rem;box-shadow:var(--shadow);
  animation:popIn .32s var(--ease-out);
}
@keyframes popIn{from{opacity:0;transform:translateY(22px) scale(.96)}}
.modal-close{position:absolute;top:14px;right:14px}
.modal-head{display:flex;align-items:center;gap:1rem;margin-bottom:1.3rem;padding-right:2.6rem}
.modal-icon{
  display:grid;place-items:center;width:56px;height:56px;border-radius:16px;flex:none;
  background:var(--accent-soft);color:var(--accent);font-size:1.4rem;
}
.modal-head h3{font-size:1.4rem}
.modal-head p{margin:.25rem 0 0;color:var(--text-dim);font-size:.92rem}
.modal-section{margin-bottom:1.4rem}
.modal-section h4{
  font-family:var(--font-mono);font-size:.8rem;text-transform:uppercase;
  letter-spacing:.1em;color:var(--accent);margin-bottom:.6rem;
}
.modal-section p{color:var(--text-dim);margin:0}
.modal-list{display:grid;gap:.5rem;color:var(--text-dim);font-size:.94rem}
.modal-list li{position:relative;padding-left:1.4rem}
.modal-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:.25rem;color:var(--accent);font-size:.75rem;
}
.modal-actions{display:flex;flex-wrap:wrap;gap:.7rem}

/* ---------- toasts ---------- */
.toast-stack{
  position:fixed;bottom:26px;left:50%;transform:translateX(-50%);
  z-index:400;display:grid;gap:.6rem;width:min(380px,92vw);
}
.toast{
  display:flex;align-items:center;gap:.7rem;padding:.9rem 1.1rem;
  border-radius:14px;background:var(--bg-alt);
  border:1px solid var(--border-strong);box-shadow:var(--shadow);
  font-size:.9rem;animation:toastIn .3s var(--ease-out);
}
@keyframes toastIn{from{opacity:0;transform:translateY(20px)}}
.toast-success i{color:var(--ok)}
.toast-error i{color:var(--danger)}
.toast-info i{color:var(--accent)}
.toast span{flex:1}
.toast-dismiss{
  background:none;border:none;color:var(--text-faint);cursor:pointer;
  padding:.2rem;font-size:.85rem;
}
.toast-dismiss:hover{color:var(--text)}

/* ---------- back to top ---------- */
.back-to-top{
  position:fixed;bottom:26px;right:26px;z-index:110;
  width:48px;height:48px;border-radius:14px;border:none;cursor:pointer;
  background:var(--grad);color:#04140d;
  box-shadow:0 12px 32px -12px var(--glow-green);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:all var(--dur) var(--ease-out);
}
.back-to-top.is-visible{opacity:1;visibility:visible;transform:none}
.back-to-top:hover{transform:translateY(-4px)}

/* ---------- form fields ---------- */
.field{display:grid;gap:.4rem}
.field label{font-size:.85rem;font-weight:600;color:var(--text-dim)}
.field input,.field textarea,.field select{
  width:100%;padding:.8rem 1rem;border-radius:12px;
  background:var(--bg-alt);border:1px solid var(--border);color:var(--text);
  font-family:var(--font-body);font-size:.95rem;
  transition:border-color var(--dur-fast),box-shadow var(--dur-fast);
}
.field textarea{resize:vertical;min-height:130px}
.field input::placeholder,.field textarea::placeholder{color:var(--text-faint)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);
}
.field input.is-invalid,.field textarea.is-invalid{border-color:var(--danger)}
.field-error{color:var(--danger);font-size:.78rem;min-height:1em}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}