/* ================================
   GLOBAL — /global.css (refined)
   Fonts: Istok Web (headings), Cabin (body/links)
   ================================ */

/* ---------- THEME TOKENS ---------- */
:root {
    /* Colors */
    --bg: #0d1117;            /* page background */
    --surface: #111827;       /* cards/sections */
    --text: #e5e7eb;          /* primary text */
    --text-muted: #a1a1aa;    /* secondary text */
    --border: rgba(255,255,255,0.06);
  
    --primary: #1c58fb;       /* indigo-600 */
    --primary-600: #284ed8;   /* hover */
    --primary-700: #2b3ea5;   /* active */
    --primary-contrast: #ffffff;
  
    --link: #7aa2ff;          /* subtle link color */
    --link-hover: #9bb8ff;
  
    /* Type scale (fluid) */
    --font-sans: "Cabin", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
                 Roboto, "Helvetica Neue", Arial, "Noto Sans";
    --font-display: "Istok Web", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
                    Roboto, "Helvetica Neue", Arial, "Noto Sans";
  
    --fs-base: clamp(0.9rem, 0.96rem + 0.3vw, 1.125rem);
    --fs-h1: clamp(2.2rem, 1.6rem + 2.4vw, 3.2rem);
    --fs-h2: clamp(1.8rem, 1.3rem + 1.6vw, 2.4rem);
    --fs-h3: clamp(1.5rem, 1.15rem + 1vw, 1.9rem);
    --fs-h4: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
    --fs-h5: clamp(1.1rem, 1.02rem + 0.3vw, 1.25rem);
  
    --lh-tight: 1.15;
    --lh-normal: 1.6;
  
    /* Layout */
    --container: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
  
    /* Focus ring */
    --ring: 0 0 0 3px color-mix(in srgb, var(--primary) 35%, transparent);
  
    /* Motion */
    --ease: cubic-bezier(.2,.8,.2,1);
    --fast: 150ms;
    --normal: 220ms;
  }
  
  /* ---------- BASE ELEMENTS ---------- */
  html {
    box-sizing: border-box;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
  }
  *, *::before, *::after { box-sizing: inherit; }
  
  body{
    margin:0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    line-height: var(--lh-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* remove any previous background-image here */
  }
  
  /* Small, off-center gradient blobs (do NOT scale to screen) */
  body::before,
  body::after{
    content:"";
    position: fixed;              /* sticks while scrolling */
    pointer-events:none;
    z-index:-1;
    filter: blur(42px);
  }
  
  /* main blob (blue→green), ~10–15cm visual width on desktop */
  body::before{
    width: 1520px;                 /* controls size */
    height: 580px;
    right: 12%;                   /* position – slightly right */
    top: 28%;
    background:
      radial-gradient(closest-side, rgba(56,189,248,.22) 0%, rgba(34, 118, 197, 0.12) 45%, transparent 75%);
  }
  
  /* subtle balance blob (indigo) */
  body::after{
    width: 360px;
    height: 280px;
    left: -80px;
    bottom: -40px;
    background:
      radial-gradient(closest-side, rgba(79,70,229,.14) 0%, transparent 70%);
  }
  
  /* scale down on smaller screens */
  @media (max-width: 1200px){
    body::before{ width: 420px; height: 300px; right: 8%; top: 30%; }
    body::after { width: 300px; height: 230px; }
  }
  @media (max-width: 780px){
    body::before{ width: 300px; height: 220px; right: 6%; top: 32%; }
    body::after { width: 220px; height: 180px; left: -100px; bottom: -60px; }
  }
  
  
  ::selection { background: color-mix(in srgb, var(--primary) 28%, transparent); color: var(--primary-contrast); }
  
  img, svg, video, canvas { max-width: 100%; height: auto; display: block; }
  
  a {
    color: var(--link);
    text-decoration: none;
    transition: color var(--normal) var(--ease), text-decoration-color var(--normal) var(--ease);
    
  }

  a:focus-visible { outline: none; box-shadow: var(--ring); border-radius: 6px; }
  
  p { margin-block: 1rem; color: var(--text); }
  
  h1, h2, h3, h4, h5 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: var(--lh-tight);
    color: var(--text);
    margin-block: 1.25rem 0.5rem;
  }
  h1 { font-size: var(--fs-h1); }
  h2 { font-size: var(--fs-h2); }
  h3 { font-size: var(--fs-h3); }
  h4 { font-size: var(--fs-h4); }
  h5 { font-size: var(--fs-h5); color: var(--text-muted); }
  
  /* ---------- LAYOUT HELPERS ---------- */
  .container { width: min(100% - 2rem, var(--container)); margin-inline: auto; box-sizing: border-box;}
  .section { padding-block: clamp(2.5rem, 5vw, 5rem); }
  .surface {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
  }
  
  /* ---------- ACCESSIBILITY ---------- */
  .visually-hidden, .sr-only {
    position: absolute !important; width:1px; height:1px;
    padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  }
  
  /* ---------- FORMS (LIGHT BASE) ---------- */
  input, textarea, select, button { font: inherit; color: inherit; }
  input, textarea, select {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-md);
    transition: border-color var(--fast) var(--ease), box-shadow var(--fast) var(--ease);
  }
  input:focus-visible, textarea:focus-visible, select:focus-visible { border-color: var(--primary); box-shadow: var(--ring); }
  
  /* =========================================================
   MODERN BUTTONS (refined)
   Usage:
   <a class="primary-button-design">Primary</a>
   <button class="secondary-button-design">Secondary</button>
   ========================================================= */

.primary-button-design,
.secondary-button-design {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: clamp(0.65rem, 0.55rem + 0.4vw, 0.9rem)
           clamp(1.25rem, 1rem + 0.8vw, 1.6rem);
  line-height: 1;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
  text-align: center;
  white-space: nowrap;
  transition:
    background var(--normal) var(--ease),
    border-color var(--normal) var(--ease),
    box-shadow var(--normal) var(--ease),
    transform var(--fast) var(--ease),
    color var(--normal) var(--ease);
    font-size: clamp(0.8rem, 0.9rem + 0.3vw, 1rem);

}

/* ---------- Primary ---------- */
.primary-button-design {
  position: relative;
  color: var(--primary-contrast);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--primary) 20%, #000) 0%,
    color-mix(in srgb, var(--primary-600) 70%, #000) 100%
  );
  border: 1px solid color-mix(in srgb, var(--primary) 60%, transparent);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.12),
    0 4px 14px rgba(79,70,229,0.25);
  overflow: hidden;
}
.primary-button-design::after {
  /* subtle top highlight glass shimmer */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    160% 220% at 50% 0%,
    rgba(255,255,255,0.15) 0%,
    transparent 60%
  );
  pointer-events: none;
  opacity: 0.6;
}
.primary-button-design:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 8px 20px rgba(79,70,229,0.28);
}
.primary-button-design:active {
  transform: translateY(0);
  box-shadow: 0 3px 8px rgba(79,70,229,0.22);
}
.primary-button-design:focus-visible {
  outline: none;
  box-shadow: var(--ring), 0 6px 14px rgba(79,70,229,0.25);
}
.primary-button-design:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---------- Secondary ---------- */
.secondary-button-design {
  background: rgba(255,255,255,0.02);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}
.secondary-button-design:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-1px);
}
.secondary-button-design:active {
  transform: translateY(0);
  background: rgba(255,255,255,0.08);
}
.secondary-button-design:focus-visible {
  outline: none;
  box-shadow: var(--ring);
}
.secondary-button-design:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ---------- Icons inside buttons ---------- */
.primary-button-design i,
.secondary-button-design i {
  font-size: 1em;
}

/* ---------- Responsive tweak ---------- */
@media (max-width: 420px) {
  .primary-button-design,
  .secondary-button-design {
    width: 100%;
  }
}



/* ================= MODERN HEADER ================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    isolation: isolate; /* so glows don't leak */
    backdrop-filter: blur(10px) saturate(120%);
    background:
      linear-gradient(180deg, rgba(13,17,23,0.75), rgba(13,17,23,0.55));
    border-bottom: 1px solid var(--border);
    transition: background var(--normal) var(--ease), box-shadow var(--normal) var(--ease);
  }
  .site-header::after { /* subtle gradient edge */
    content: "";
    position: absolute; inset: auto 0 0 0; height: 1px;
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--primary) 55%, transparent), transparent);
    opacity: .5;
    pointer-events: none;
  }
  .site-header.is-scrolled { box-shadow: 0 8px 28px rgba(0,0,0,0.22); }
  
  .header-inner {
    min-height: 76px;
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 1rem;
  }
  
  /* ---------- Logo ---------- */
  .logo { display: inline-flex; align-items: baseline; gap: .125rem; text-decoration: none; }
  .logo-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.1rem, 1rem + .8vw, 1.4rem);
    letter-spacing: .2px;
    color: var(--text);
    background: linear-gradient(90deg, var(--text) 0%, color-mix(in srgb, var(--text) 80%, var(--primary)) 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .logo-dot { color: var(--primary); text-shadow: 0 0 10px color-mix(in srgb, var(--primary) 40%, transparent); }
  
  /* ---------- Desktop Nav ---------- */
  .nav { justify-self: center; }
  .nav-list { display: flex; gap: clamp(.6rem, .5rem + 1vw, 1.4rem); align-items: center; }
  
  .nav-list a {
    position: relative;
    color: var(--text-muted);
    font-weight: 600;
    padding: .5rem .25rem;
    border-radius: 10px;
    transition: color var(--normal) var(--ease), background-color var(--normal) var(--ease), text-shadow var(--fast) var(--ease);
  }
  .nav-list a::after {
    content: "";
    position: absolute; left: 10%; right: 10%; bottom: .1rem; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--normal) var(--ease);
    border-radius: 2px;
    opacity: .9;
  }
  .nav-list a:hover,
  .nav-list a:focus-visible {
    color: var(--text);
    text-shadow: 0 0 12px rgba(124,131,255,0.18);
  }
  .nav-list a:hover::after,
  .nav-list a:focus-visible::after { transform: scaleX(1); }
  
  /* ---------- CTA (desktop) ---------- */
  .header-cta {
    justify-self: end;
    box-shadow: 0 6px 16px rgba(79,70,229,0.18);
  }
  .header-cta:hover { box-shadow: 0 10px 24px rgba(79,70,229,0.25); }
  
  /* ---------- Burger (modern morph) ---------- */
  .burger {
    display: none;
    width: 44px; height: 44px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background:
      linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
    position: relative;
    transition: transform var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease);
  }
  .burger:hover { background: rgba(255,255,255,0.05); }
  .burger:active { transform: translateY(1px) scale(0.99); }
  .burger span {
    position: absolute; left: 50%; width: 20px; height: 2px;
    background: var(--text);
    transform: translateX(-50%); border-radius: 2px;
    transition: transform var(--fast) var(--ease), opacity var(--fast) var(--ease);
  }
  .burger span:nth-child(1) { top: 14px; }
  .burger span:nth-child(2) { top: 21px; }
  .burger span:nth-child(3) { top: 28px; }
  
  .burger[aria-expanded="true"] span:nth-child(1) { transform: translateX(-50%) translateY(7px) rotate(45deg); }
  .burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .burger[aria-expanded="true"] span:nth-child(3) { transform: translateX(-50%) translateY(-7px) rotate(-45deg); }
  
  /* ---------- Mobile overlay & drawer ---------- */
  .mobile-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(2px);
    opacity: 0; pointer-events: none;
    transition: opacity var(--normal) var(--ease);
    z-index: -1;
  }
  .mobile-overlay.open { opacity: 1; pointer-events: auto; z-index: 90; }
  
/* Drawer should open BELOW the header */
.mobile-menu {
    position: absolute;
    top: 100%;        /* ⬅️ anchor under header */
    left: 0;
    right: 0;
    /* remove bottom/`inset: auto 0 0 0` */
    background: linear-gradient(180deg, rgb(17, 24, 39), rgb(17, 24, 39));
    border-top: 1px solid var(--border);
    backdrop-filter: blur(10px);
    transform: translateY(-12px);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition:
      transform var(--normal) var(--ease),
      opacity var(--normal) var(--ease),
      max-height var(--normal) var(--ease);
    z-index: 100;
  }
  .mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    max-height: 460px;
  }
  
  
  .mobile-nav {
    display: grid;
    gap: .5rem;
    padding: 1rem 1rem 1.25rem;
  }
  .mobile-link {
    padding: .9rem .85rem;
    border-radius: 12px;
    color: var(--text);
    border: 1px solid transparent;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    transition: background var(--fast) var(--ease), border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
  }
  .mobile-link:hover,
  .mobile-link:focus-visible {
    background: rgba(255,255,255,0.04);
    border-color: var(--border);
    outline: none;
    transform: translateY(-1px);
  }
  .mobile-cta { margin-top: .25rem; box-shadow: 0 8px 22px rgba(79,70,229,0.24); }
  
  /* ---------- Responsive ---------- */
  @media (max-width: 980px) {
    .header-inner { grid-template-columns: auto 1fr auto; }
    .nav, .header-cta { display: none; }
    .burger { display: inline-block; justify-self: end; }
  }
  




  /* ===== FOOTER ===== */
.site-footer{
    margin-top: clamp(2rem, 5vw, 3rem);
    position: relative;
  
    background: linear-gradient(180deg, rgba(13,17,23,.7), rgba(13,17,23,.55));
    backdrop-filter: blur(8px) saturate(115%);
    isolation: isolate;
    margin-top: 0;
  }
  .site-footer::before{
    content:""; position:absolute; left:0; right:0; top:0; height:1px;
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--primary) 55%, transparent), transparent);
    opacity:.45; pointer-events:none;
  }
  
  .footer-inner{ padding: clamp(1.2rem, 3vw, 1.8rem) 0; }
  .footer-grid{
    display:grid; gap: clamp(1rem, 2.6vw, 1.6rem);
    grid-template-columns: 1.2fr .8fr .8fr;
    align-items:start;
    
  }
  @media (max-width: 900px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
  @media (max-width: 560px){ .footer-grid{ grid-template-columns: 1fr; } }
  
  .foot-col{ 
    padding: clamp(.9rem, 2.2vw, 1.1rem);
  }
  .foot-brand{ padding: clamp(1rem, 2.6vw, 1.25rem); }
  
  .foot-logo{ text-decoration:none; display:inline-flex; align-items:baseline; gap:.15rem; }
  .foot-logo .logo-text{
    font-family: var(--font-display); font-weight: 800; letter-spacing:.2px;
    background: linear-gradient(90deg, var(--text) 0%, color-mix(in srgb, var(--text) 80%, var(--primary)) 100%);
    -webkit-background-clip:text; background-clip:text; color:transparent;
    font-size: clamp(1.15rem, 1rem + .6vw, 1.35rem);
  }
  .foot-logo .logo-dot{ color: var(--primary); text-shadow: 0 0 10px color-mix(in srgb, var(--primary) 40%, transparent); }
  
  .foot-blurb{ margin-top:.5rem; color: var(--text-muted); max-width: 42ch; }
  
  .foot-title{ margin:0 0 .5rem 0; font-size: 1rem; letter-spacing:.2px; }
  .foot-links{ display:grid; gap:.45rem; }
  .foot-links a {
    position: relative;
    color: var(--text-muted);
    font-weight: 600;
    padding: .4rem .25rem;
    border-radius: 10px;
    transition: color var(--normal) var(--ease), background-color var(--normal) var(--ease), text-shadow var(--fast) var(--ease);
  }
  
  .foot-links a::after {
    content: "";
    position: absolute;
    left: 10%; right: 10%; bottom: .1rem; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--normal) var(--ease);
    border-radius: 2px;
    opacity: .9;
  }
  
  .foot-links a:hover,
  .foot-links a:focus-visible {
    color: var(--text);
    text-shadow: 0 0 12px rgba(124,131,255,0.18);
  }
  
  .foot-links a:hover::after,
  .foot-links a:focus-visible::after {
    transform: scaleX(1);
  }
  
  .foot-socials{ display:flex; gap:.5rem; }
  .foot-socials a{
    display:grid; place-items:center; width:38px; height:38px; border-radius:12px;
    border:1px solid var(--border); background: rgba(255,255,255,.02);
    transition: transform var(--fast) var(--ease), border-color var(--fast) var(--ease), background var(--fast) var(--ease);
  }
  .foot-socials a:hover{ transform: translateY(-1px); border-color: rgba(255,255,255,.12); background: rgba(255,255,255,.05); }
  
  .foot-bottom{
    margin-top: clamp(1rem, 3vw, 1.4rem);
    display:flex; align-items:center; justify-content:space-between; gap:1rem;
    padding-top: clamp(.8rem, 2vw, 1rem);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
  }
  
  .backtop{
    display:inline-grid; place-items:center; width:38px; height:38px; border-radius:12px;
    border:1px solid var(--border); background: rgba(255,255,255,.02); color:var(--text);
    cursor:pointer; transition: transform var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease);
  }
  .backtop:hover{ transform: translateY(-1px); background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); }