/*
  Aequovia — minimal, modern, accessible base styles
  - Fluid type and spacing
  - Subtle neumorphic surfaces
  - Dark mode support
*/

:root {
  color-scheme: dark;
  --bg: #050816;
  --panel: #0a1224;
  --surface: #050816;
  --text: #e6e9f0;
  --muted: #8a93a3;
  /* Gradient palette from user spec */
  --primary: oklch(0.623 0.214 259.815);
  --accent: oklch(0.558 0.288 302.321);
  --secondary: color-mix(in oklch, var(--primary), var(--accent) 50%);
  --card: #0b1326;
  --border: #141c2e;
  --ring: var(--primary);

  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 8px;

  --shadow-1: 0 1px 2px rgba(0,0,0,.18), 0 2px 8px rgba(0,0,0,.22);
  --shadow-2: 0 6px 16px rgba(0,0,0,.35), 0 18px 36px rgba(0,0,0,.32);

  --step--2: clamp(0.72rem, 0.71rem + 0.05vw, 0.78rem);
  --step--1: clamp(0.86rem, 0.83rem + 0.12vw, 1.00rem);
  --step-0: clamp(1.00rem, 0.93rem + 0.35vw, 1.20rem);
  --step-1: clamp(1.25rem, 1.09rem + 0.80vw, 1.60rem);
  --step-2: clamp(1.56rem, 1.26rem + 1.52vw, 2.20rem);
  --step-3: clamp(1.95rem, 1.44rem + 2.61vw, 3.00rem);
  --step-4: clamp(2.44rem, 1.60rem + 4.18vw, 4.20rem);

  --space-1: clamp(6px, 0.35vw, 10px);
  --space-2: clamp(10px, 0.6vw, 14px);
  --space-3: clamp(14px, 1vw, 22px);
  --space-4: clamp(20px, 1.6vw, 32px);
  --space-5: clamp(28px, 2.6vw, 48px);
  --space-6: clamp(40px, 4vw, 72px);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 var(--step-0) system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container { width: min(1120px, 92%); margin-inline: auto; }

/* Removed header and theme toggle for dark-only design */

.hero { display:grid; grid-template-columns: 1fr; gap: var(--space-5); align-items:center; padding: calc(var(--space-6) + 48px) 0 var(--space-6); text-align: center; min-height: 100vh; min-height: 100svh; }
.hero h1 { font-size: var(--step-4); line-height: 1.05; margin: 0 0 var(--space-3); letter-spacing: -0.02em; }
.hero p { font-size: var(--step-1); color: var(--muted); margin: 0 0 var(--space-4); max-width: 68ch; margin-inline: auto; }
.hero .hero-content { max-width: 920px; margin-inline: auto; }
.hero-ctas { display:flex; gap: var(--space-3); align-items:center; justify-content: center; }
.gradient-text { background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.button {
  /* Base */
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: var(--btn-height, 44px);
  padding-inline: var(--btn-px, 18px);
  border-radius: var(--btn-radius, var(--radius-xs));
  border: 1px solid var(--btn-border, var(--border));
  color: var(--btn-text, var(--text));
  background: var(--btn-bg, linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)));
  box-shadow: var(--btn-shadow, var(--shadow-1));
  transition: transform .06s ease, box-shadow .25s ease, border-color .25s ease, background .25s ease, filter .25s ease;
  will-change: transform, box-shadow, filter;
  text-align: center;
  white-space: nowrap;
}

.button::before {
  /* Subtle glossy highlight */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(120% 70% at 50% -10%, rgba(255,255,255,.16), transparent 60%);
  opacity: .0;
  transition: opacity .3s ease;
  pointer-events: none;
}

.button::after {
  /* Soft gradient border glow */
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, color-mix(in oklab, var(--btn-glow, var(--ring)), white 15%), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .25s ease;
  pointer-events: none;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
  border-color: color-mix(in oklab, var(--btn-border, var(--border)), white 10%);
}
.button:hover::before { opacity: .5; }
.button:hover::after { opacity: .7; }

.button:active { transform: translateY(0) scale(.995); filter: saturate(105%); }
.button:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; }

/* Variants */
.button-primary {
  --btn-bg: linear-gradient(135deg, var(--primary), var(--accent));
  --btn-border: transparent;
  --btn-text: #fff;
  --btn-glow: color-mix(in oklab, var(--secondary), white 10%);
}

.button-secondary {
  --btn-bg: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
  --btn-border: color-mix(in oklab, var(--border), white 6%);
}

.button-quiet {
  --btn-bg: transparent;
  --btn-border: rgba(255,255,255,.08);
  --btn-text: color-mix(in oklab, var(--text), white 0%);
}

.button-outline {
  --btn-bg: transparent;
  --btn-border: color-mix(in oklab, var(--primary), white 18%);
  --btn-glow: var(--primary);
}

.button-ghost {
  --btn-bg: transparent;
  --btn-border: transparent;
  color: color-mix(in oklab, var(--text), var(--primary) 18%);
}

/* Sizes */
.button-sm { --btn-height: 36px; --btn-px: 14px; font-size: var(--step--1); }
.button-lg { --btn-height: 52px; --btn-px: 22px; font-size: var(--step-0); }
.button-block { display: inline-flex; inline-size: 100%; }
.button-pill { --btn-radius: 999px; }

/* Icons inside buttons */
.button .icon { inline-size: 1.1em; block-size: 1.1em; display: inline-grid; place-items: center; }
.button .icon svg { inline-size: 1em; block-size: 1em; }

/* Disabled & loading states */
.button[disabled], .button[aria-disabled="true"], .button.is-disabled {
  opacity: .55;
  filter: saturate(80%);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}
.button[disabled]::after, .button[aria-disabled="true"]::after, .button.is-disabled::after { opacity: 0 !important; }

.button.is-loading, .button[data-loading="true"] {
  pointer-events: none;
}
.button.is-loading::before, .button[data-loading="true"]::before {
  /* turn down glossy when loading */
  opacity: .2;
}

@media (prefers-reduced-motion: reduce) {
  .button { transition: none; }
  .button:hover, .button:active { transform: none; }
}

/* Remove hero decorative panel; we now use a full-page animated background */

.section { padding: calc(var(--space-6) * 2) 0; }
.section-head { margin-bottom: var(--space-4); }
.section h2 { font-size: var(--step-2); margin: 0 0 var(--space-2); letter-spacing: -0.01em; }
.section p { margin: 0; color: var(--muted); }

.grid { display:grid; gap: var(--space-4); }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.projects-grid { grid-template-columns: repeat(2, 1fr); }

.card { background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.0)); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4); box-shadow: var(--shadow-1); position: relative; overflow: hidden; }
.card-head { display:flex; align-items:center; gap: var(--space-3); margin-bottom: var(--space-3); }
.card h3 { margin: 0; letter-spacing: -0.01em; }
.card .muted { color: var(--muted); font-size: var(--step--1); }
.avatar { width: 40px; height: 40px; border-radius: 10px; display:grid; place-items:center; background: #fff; font-weight: 700; color: white; }
.card-actions { margin-top: var(--space-3); }
.tags { display:flex; gap: 8px; margin-top: 10px; }
.chip { display:inline-flex; align-items:center; height: 28px; padding: 0 10px; border-radius: 999px; background: color-mix(in oklab, var(--panel), transparent 40%); border: 1px solid var(--border); color: var(--muted); font-size: var(--step--2); }

/* Project media (image slot) */
.project-media { aspect-ratio: 16 / 9; border-radius: calc(var(--radius) - 6px); overflow: hidden; margin: -8px -8px var(--space-3); position: relative; background: radial-gradient(120% 120% at 20% 20%, color-mix(in oklab, var(--project-accent, var(--secondary)), black 40%), transparent 65%); border: 1px solid color-mix(in oklab, var(--border), white 8%); }
.project-media img { width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(110%) contrast(102%); }

/* Card hover accents */
.project { transition: transform .18s ease, box-shadow .25s ease, border-color .25s ease; }
.project::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: linear-gradient(140deg, color-mix(in oklab, var(--project-accent, var(--secondary)), white 10%), transparent 35%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: .0; transition: opacity .25s ease; }
.project:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.project:hover::before { opacity: .75; }
.project:focus-within::before { opacity: .85; }

/* Scroll-reveal */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

.list { margin: 0; padding-left: 1.1em; }
.list li { margin: 0 0 8px; }

.contact { display:flex; align-items:center; gap: var(--space-3); }

.features .feature { background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)); border: 1px dashed color-mix(in oklab, var(--border), transparent 35%); padding: var(--space-4); border-radius: var(--radius); }
.feature h3 { margin: 0 0 6px; }
.feature p { margin: 0; color: var(--muted); }
.feature-icon { width: 40px; height: 40px; display:grid; place-items:center; border-radius: 10px; background: linear-gradient(135deg, color-mix(in oklab, var(--primary), white 10%), color-mix(in oklab, var(--secondary), white 6%)); color: white; margin-bottom: 12px; }

/* Approach/Values section */
.approach-grid { grid-template-columns: repeat(2, 1fr); }
.approach-value { 
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01)); 
  border: 1px solid var(--border); 
  border-radius: var(--radius); 
  padding: var(--space-4); 
  text-align: center; 
  transition: transform .18s ease, box-shadow .25s ease, border-color .25s ease;
  position: relative;
  overflow: hidden;
}
.approach-value:hover { 
  transform: translateY(-2px); 
  box-shadow: var(--shadow-2); 
  border-color: color-mix(in oklab, var(--border), var(--primary) 20%);
}
.approach-value::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, color-mix(in oklab, var(--primary), white 8%), color-mix(in oklab, var(--accent), white 8%), transparent 50%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .25s ease;
}
.approach-value:hover::before { opacity: .6; }
.approach-icon { 
  width: 48px; 
  height: 48px; 
  display: grid; 
  place-items: center; 
  border-radius: 12px; 
  background: linear-gradient(135deg, color-mix(in oklab, var(--primary), white 8%), color-mix(in oklab, var(--accent), white 8%)); 
  color: white; 
  margin: 0 auto var(--space-3); 
  box-shadow: var(--shadow-1);
}
.approach-icon svg { 
  width: 24px; 
  height: 24px; 
}
.approach-value h3 { 
  margin: 0 0 var(--space-2); 
  font-size: var(--step-1); 
  letter-spacing: -0.01em; 
}
.approach-value p { 
  margin: 0; 
  color: var(--muted); 
  font-size: var(--step-0); 
  line-height: 1.5;
}

.kpis { display:flex; gap: var(--space-4); margin-top: var(--space-3); }
.kpi { display:flex; flex-direction: column; gap: 2px; }
.kpi .num { font-weight: 700; letter-spacing: -0.01em; font-size: var(--step-2); }
.kpi .label { color: var(--muted); font-size: var(--step--1); }

.site-footer { border-top: 1px solid rgba(255,255,255,.06); background: rgba(0,0,0,.2); margin-top: var(--space-6); }
.footer-inner { display:flex; flex-direction: column; align-items:center; justify-content: center; padding: var(--space-4) 0; gap: var(--space-3); }
.footer-brand { display:flex; align-items:center; gap: 10px; color: var(--muted); }
.footer-contact { display:flex; justify-content: center; width: 100%; }
.footer-email { 
  color: var(--muted); 
  font-size: var(--step--1); 
  text-decoration: none; 
  transition: color 0.25s ease;
}
.footer-email:hover { color: var(--text); }
.footer-meta { display:flex; align-items:center; gap: var(--space-4); color: var(--muted); }
.backtotop { color: var(--text); }

/* Responsive */
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; }
  .projects-grid, .grid.two, .grid.three, .approach-grid { grid-template-columns: 1fr; }
  .section { padding: calc(var(--space-6) * 1.5) 0; }
}

/* Site-wide animated background like flowing blobs */
.bg-animation { position: fixed; inset: 0; overflow: hidden; z-index: -1; pointer-events: none; }
.bg-animation .blob { position: absolute; width: 65vmax; height: 65vmax; border-radius: 50%; filter: blur(80px) saturate(120%); opacity: .18; mix-blend-mode: screen; pointer-events: none; }
.bg-animation .b1 { background: radial-gradient(circle at 30% 30%, color-mix(in oklab, var(--secondary), black 35%), transparent 60%); left: -15vmax; top: -15vmax; animation: move1 26s ease-in-out infinite alternate; }
.bg-animation .b2 { background: radial-gradient(circle at 70% 70%, color-mix(in oklab, var(--accent), black 35%), transparent 60%); right: -18vmax; top: -4vmax; animation: move2 32s ease-in-out infinite alternate; }
.bg-animation .b3 { background: radial-gradient(circle at 50% 50%, color-mix(in oklab, var(--primary), black 35%), transparent 60%); left: 5vmax; bottom: -16vmax; animation: move3 28s ease-in-out infinite alternate; }

.bg-animation::after { content: ""; position: absolute; inset: 0; pointer-events: none; background:
  radial-gradient(1200px 800px at 50% 40%, transparent, rgba(0,0,0,.5) 70%);
}

@keyframes move1 { from { transform: translate(0,0) scale(1);} to { transform: translate(6vmax,4vmax) scale(1.08);} }
@keyframes move2 { from { transform: translate(0,0) scale(1);} to { transform: translate(-5vmax,6vmax) scale(1.08);} }
@keyframes move3 { from { transform: translate(0,0) scale(1);} to { transform: translate(5vmax,-5vmax) scale(1.08);} }

/* Respect accessibility preferences */
@media (prefers-reduced-motion: reduce) {
  .bg-animation .blob { animation: none; }
}

@media (max-width: 720px) {
  .menu { display:none; position: absolute; right: 4%; top: 62px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; flex-direction: column; gap: 8px; box-shadow: var(--shadow-2); }
  .menu[aria-expanded="true"] { display:flex; }
  .nav-toggle { display: inline-block; }
}