/* ═══════════════════════════════════════════════════════════
   AMD Academy — Shared Stylesheet
   Covers: CSS reset, design tokens, nav, logo, buttons,
           footer, WhatsApp button, reveal animations,
           and responsive utilities shared across all pages.
   Page-specific styles remain in inline <style> blocks.
   ═══════════════════════════════════════════════════════════ */

/* ── Reset ─────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

/* ── Design Tokens ─────────────────────────────────────────── */
:root{
  --bg:#FFFFFF;
  --bg2:#F7F5FF;
  --bg3:#EDE9FE;
  --surface:rgba(124,58,237,0.05);
  --surface2:rgba(124,58,237,0.09);
  --violet:#7C3AED;
  --violet-h:#6D28D9;
  --violet-lt:#8B5CF6;
  --violet-ult:#EDE9FE;
  --amber:#F59E0B;
  --amber-lt:#FCD34D;
  --rose:#F43F5E;
  --emerald:#059669;
  --sky:#0284C7;
  --white:#FFFFFF;
  --grey-10:#FAFAFA;
  --grey-20:#F3F4F6;
  --grey-50:#6B7280;
  --grey-70:#374151;
  --text:#111827;
  --text-sec:#4B5563;
  --border:#E5E7EB;
  --border-v:rgba(124,58,237,0.18);
  --r:3px;--rm:8px;--rl:14px;
}

html{scroll-behavior:smooth}
body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;-webkit-font-smoothing:antialiased}
::-webkit-scrollbar{width:3px}
::-webkit-scrollbar-track{background:#F3F4F6}
::-webkit-scrollbar-thumb{background:var(--violet);border-radius:9px}

/* ── NAV ───────────────────────────────────────────────────── */
nav{position:sticky;top:0;z-index:999;height:88px;display:flex;align-items:center;justify-content:space-between;padding:0 5%;background:rgba(255,255,255,0.97);backdrop-filter:blur(28px);border-bottom:1px solid var(--border);transition:box-shadow 0.3s}
nav.scrolled{box-shadow:0 4px 24px rgba(124,58,237,0.1)}
nav.menu-open{box-shadow:0 4px 24px rgba(124,58,237,0.18);border-bottom-color:var(--border-v)}
.nav-logo{display:flex;align-items:center;gap:16px;text-decoration:none;transition:opacity 0.2s}
.nav-logo:hover{opacity:0.88}
.logo-mark{width:64px;height:64px;flex-shrink:0;filter:drop-shadow(0 0 12px rgba(124,58,237,0.4)) drop-shadow(0 0 24px rgba(124,58,237,0.15));transition:filter 0.3s}
.nav-logo:hover .logo-mark{filter:drop-shadow(0 0 18px rgba(124,58,237,0.65)) drop-shadow(0 0 36px rgba(124,58,237,0.25))}
.logo-txt{display:flex;flex-direction:column;gap:5px}
.logo-name{font-family:'Outfit',sans-serif;font-size:1.85rem;font-weight:800;color:var(--grey-70);line-height:1;letter-spacing:-1px}
.logo-name em{font-style:normal;background:linear-gradient(90deg,var(--violet) 0%,var(--violet-lt) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.logo-sub{font-family:'Space Grotesk',sans-serif;font-size:0.6rem;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;background:linear-gradient(90deg,var(--amber) 0%,#F97316 50%,var(--amber-lt) 100%);-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{font-family:'Outfit',sans-serif;color:#4C1D95;text-decoration:none;font-size:0.83rem;font-weight:700;padding:7px 16px;border-radius:22px;transition:all 0.22s cubic-bezier(0.4,0,0.2,1);background:#fff;border:1.5px solid rgba(124,58,237,0.25);letter-spacing:0.1px;box-shadow:0 1px 4px rgba(124,58,237,0.08)}
.nav-links a:hover{color:#7C3AED;background:linear-gradient(135deg,#F5F3FF 0%,#EDE9FE 100%);border-color:rgba(124,58,237,0.5);box-shadow:0 4px 16px rgba(124,58,237,0.18);transform:translateY(-1px)}
.nav-links a.active{color:#fff!important;background:linear-gradient(135deg,#7C3AED 0%,#6D28D9 100%)!important;border-color:transparent!important;box-shadow:0 4px 16px rgba(124,58,237,0.4)!important;transform:translateY(-1px)}
.nav-sep{width:1px;height:18px;background:var(--border);margin:0 6px}
.nav-cta{background:var(--violet)!important;color:#fff!important;padding:9px 20px!important;border-radius:var(--rm)!important;font-weight:600!important;font-size:0.84rem!important;box-shadow:0 4px 14px rgba(124,58,237,0.35);font-family:'Outfit',sans-serif!important;letter-spacing:0.2px!important}
.nav-cta:hover{background:var(--violet-h)!important;box-shadow:0 6px 24px rgba(124,58,237,0.5)!important;color:#fff!important}
.nav-contact-cta{padding:8px 18px!important;font-size:0.84rem!important;font-weight:700!important;letter-spacing:0.2px!important}
.nav-contact-btn-wrap{position:relative;list-style:none}
.nav-contact-drop{display:none;position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--border);border-radius:var(--rm);box-shadow:0 8px 24px rgba(0,0,0,0.1);min-width:220px;padding:8px 0;z-index:200}
.nav-contact-btn-wrap:hover .nav-contact-drop{display:flex;flex-direction:column}
.nav-contact-drop a{font-size:0.82rem;font-weight:500;color:var(--grey-50);text-decoration:none;padding:10px 18px;transition:all 0.15s;white-space:nowrap}
.nav-contact-drop a:hover{background:var(--bg2);color:var(--violet)}
.nav-contact-info{display:flex;align-items:center;gap:8px}
.nav-ham{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;border-radius:var(--rm)}
.nav-ham span{display:block;width:22px;height:2px;background:var(--grey-70);transition:all 0.3s;border-radius:2px}
.nav-ham.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-ham.open span:nth-child(2){opacity:0}
.nav-ham.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mm{display:none;position:fixed;inset:0;top:88px;background:rgba(255,255,255,0.99);backdrop-filter:blur(24px);z-index:998;flex-direction:column;align-items:center;justify-content:center;overflow-y:auto;border-top:1px solid var(--border)}
.mm.open{display:flex}
.mm a{font-family:'Outfit',sans-serif;font-size:1.5rem;font-weight:700;color:var(--grey-70);text-decoration:none;padding:14px 40px;border-bottom:1px solid var(--border);width:100%;text-align:center;transition:color 0.2s;display:block;box-sizing:border-box}
.mm a:hover{color:var(--violet);background:var(--violet-ult)}
.mm .mm-cta{background:var(--violet);color:#fff!important;margin:20px 40px 0;width:calc(100% - 80px);padding:14px;border-radius:var(--rm);font-size:0.95rem;font-family:'Outfit',sans-serif;font-weight:700;border:none;display:block;text-align:center;text-decoration:none;box-sizing:border-box}

/* ── Shared Buttons ─────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:var(--rm);font-family:'Outfit',sans-serif;font-size:0.9rem;font-weight:700;text-decoration:none;transition:all 0.22s;letter-spacing:0.2px;cursor:pointer;border:none}
.btn-v{background:var(--violet);color:#fff;box-shadow:0 4px 18px rgba(124,58,237,0.4)}
.btn-v:hover{background:var(--violet-h);transform:translateY(-2px);box-shadow:0 8px 28px rgba(124,58,237,0.55)}
.btn-wh{background:#fff;color:var(--violet);border:1.5px solid rgba(124,58,237,0.3)}
.btn-wh:hover{background:var(--violet-ult);border-color:rgba(124,58,237,0.5);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,0.4)}
.btn-ghost:hover{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.7)}

/* ── Section shared ─────────────────────────────────────────── */
.sec{padding:96px 5%}
.sec-in{max-width:1280px;margin:0 auto}
.label{font-family:'Space Mono',monospace;font-size:0.68rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--violet);margin-bottom:12px}
.h2{font-family:'Outfit',sans-serif;font-size:clamp(1.8rem,3vw,2.6rem);font-weight:800;color:var(--text);line-height:1.15;letter-spacing:-0.5px;margin-bottom:16px}
.sub{font-size:1rem;color:var(--text-sec);line-height:1.75;max-width:520px}

/* ── Footer ─────────────────────────────────────────────────── */
footer{background:#0F0E17;color:rgba(255,255,255,0.6);padding:64px 5% 32px}
.foot-in{max-width:1280px;margin:0 auto}
.foot-top{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.foot-logo{font-family:'Outfit',sans-serif;font-size:1.4rem;font-weight:800;color:#fff;margin-bottom:12px}
.foot-logo em{font-style:normal;color:var(--amber-lt)}
.foot-desc{font-size:0.82rem;line-height:1.75;color:rgba(255,255,255,0.4);max-width:260px}
.foot-col-ttl{font-family:'Space Mono',monospace;font-size:0.65rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,0.35);margin-bottom:16px}
.foot-col ul{list-style:none}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a{color:rgba(255,255,255,0.55);text-decoration:none;font-size:0.84rem;transition:color 0.2s}
.foot-col ul li a:hover{color:var(--violet-lt)}
.foot-btm{display:flex;justify-content:space-between;align-items:center;color:rgba(255,255,255,0.2);font-size:0.76rem;flex-wrap:wrap;gap:10px}
.foot-btm a{color:var(--violet-lt);text-decoration:none}

/* ── WhatsApp Button ─────────────────────────────────────────── */
.wa-btn{position:fixed;bottom:24px;right:24px;width:54px;height:54px;background:#25D366;border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:900;box-shadow:0 4px 20px rgba(37,211,102,0.4);text-decoration:none;transition:transform 0.2s;animation:waPulse 2.5s ease-in-out infinite}
.wa-btn:hover{transform:scale(1.1);animation:none;box-shadow:0 8px 32px rgba(37,211,102,0.6)}
.wa-btn svg{width:28px;height:28px;fill:#fff}
.wa-tip{position:absolute;right:66px;background:var(--text);color:#fff;font-size:0.75rem;font-weight:500;padding:6px 12px;border-radius:var(--r);white-space:nowrap;opacity:0;transform:translateX(6px);transition:all 0.2s;border:1px solid var(--border)}
.wa-btn:hover .wa-tip{opacity:1;transform:translateX(0)}
@keyframes waPulse{0%,100%{box-shadow:0 4px 20px rgba(37,211,102,0.4)}50%{box-shadow:0 4px 32px rgba(37,211,102,0.65),0 0 0 8px rgba(37,211,102,0.07)}}

/* ── Reveal Animations ──────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(20px);transition:opacity 0.55s ease,transform 0.55s ease}
.reveal.visible{opacity:1;transform:none}
.rd1{transition-delay:0.08s}.rd2{transition-delay:0.16s}.rd3{transition-delay:0.24s}.rd4{transition-delay:0.32s}

/* ── Shared Responsive ──────────────────────────────────────── */
@media(max-width:1100px){
  .foot-top{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  nav{height:68px}.nav-links{display:none}.nav-ham{display:flex}
  .foot-top{grid-template-columns:1fr 1fr}
  .sec{padding:72px 5%}
}
@media(max-width:480px){
  .foot-top{grid-template-columns:1fr}
}