/* =========================================================
   Thorsten Schwarz — A Passion for Data Protection
   Design system + components. Dark "industrial resilience" theme,
   with an opt-in light theme via html[data-theme="light"].
   ========================================================= */

/* ----------------------------- Tokens ----------------------------- */
:root {
  --bg:           #0a0e17;
  --bg-2:         #0b1018;
  --surface:      #111a2b;
  --surface-2:    #16203a;
  --panel:        rgba(18, 26, 43, 0.72);
  --border:       rgba(148, 163, 184, 0.14);
  --border-strong:rgba(148, 163, 184, 0.30);

  --text:         #e7eef8;
  --muted:        #93a1b8;
  --dim:          #5d6c84;

  --accent:       #2fe0c8;   /* teal/cyan — primary "data/cyber" */
  --accent-2:     #38bdf8;   /* sky — gradient partner */
  --amber:        #f5b53d;   /* echoes the yellow jacket */
  --green:        #3ddc84;   /* protected / healthy */
  --red:          #ff5f6d;   /* threat */

  --grad: linear-gradient(120deg, var(--accent), var(--accent-2));

  /* surfaces, overlays & glass — overridden in the light theme */
  --wash:         rgba(255,255,255,0.012);
  --fill:         rgba(255,255,255,0.03);
  --fill-2:       rgba(255,255,255,0.04);
  --track:        rgba(255,255,255,0.06);
  --glass:        rgba(10,14,23,0.78);
  --glass-strong: rgba(10,14,23,0.92);
  --glass-menu:   rgba(10,14,23,0.97);
  --terminal-bg:  rgba(7,11,18,0.9);
  --tag-bg:       rgba(7,11,18,0.7);
  --cell-bg:      rgba(10,14,23,0.6);
  --node-bg:      rgba(10,14,23,0.8);
  --logo-filter:  invert(1) brightness(1.7);

  --container: 1180px;
  --radius:   16px;
  --radius-sm: 10px;

  --shadow:    0 24px 60px -28px rgba(0, 0, 0, 0.8);
  --shadow-sm: 0 10px 30px -18px rgba(0, 0, 0, 0.85);

  --font-head: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----------------------------- Light theme ------------------------ */
html[data-theme="light"] {
  --bg:           #eef1f7;
  --bg-2:         #e6eaf3;
  --surface:      #ffffff;
  --surface-2:    #f3f5fa;
  --panel:        rgba(255, 255, 255, 0.8);
  --border:       rgba(15, 23, 42, 0.10);
  --border-strong:rgba(15, 23, 42, 0.22);

  --text:         #0e1a2b;
  --muted:        #4a5a72;
  --dim:          #8493a8;

  --accent:       #08a892;   /* deeper teal for contrast on white */
  --accent-2:     #1f8fe0;
  --amber:        #c9780a;
  --green:        #12a150;
  --red:          #e23b4e;

  --wash:         rgba(15,23,42,0.025);
  --fill:         rgba(15,23,42,0.045);
  --fill-2:       rgba(15,23,42,0.06);
  --track:        rgba(15,23,42,0.09);
  --glass:        rgba(255,255,255,0.82);
  --glass-strong: rgba(255,255,255,0.90);
  --glass-menu:   rgba(255,255,255,0.97);
  --terminal-bg:  #0d1422;     /* keep the terminal a dark code window */
  --tag-bg:       rgba(7,11,18,0.72);
  --cell-bg:      rgba(255,255,255,0.6);
  --node-bg:      #ffffff;
  --logo-filter:  none;        /* black signature reads fine on light */

  --shadow:    0 24px 60px -30px rgba(15, 23, 42, 0.35);
  --shadow-sm: 0 12px 30px -18px rgba(15, 23, 42, 0.26);
}
/* keep the dark terminal readable in light mode */
html[data-theme="light"] .terminal__out { color: #9fb0c3; }
html[data-theme="light"] .terminal__title,
html[data-theme="light"] .terminal__sep { color: #64748b; }
html[data-theme="light"] .terminal__prompt { color: #2fe0c8; }
html[data-theme="light"] .terminal__path { color: #7cc6ff; }
html[data-theme="light"] #typed { color: #f5b53d; }
/* photo tag sits over the image → keep its text light */
html[data-theme="light"] .hero__photo-tag { color: #eef2f8; }
/* the sim terminal log stays light on its dark strip */
html[data-theme="light"] .sim__log { color: #cdd8e6; }
/* gentler ambient glows on a light canvas */
html[data-theme="light"] body::before {
  background:
    radial-gradient(800px 500px at 80% -5%, rgba(8,168,146,0.10), transparent 60%),
    radial-gradient(700px 500px at 0% 30%, rgba(31,143,224,0.08), transparent 60%),
    radial-gradient(900px 700px at 60% 110%, rgba(201,120,10,0.06), transparent 60%);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .4s var(--ease), color .4s var(--ease);
}

/* Ambient background glows */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(800px 500px at 80% -5%, rgba(47, 224, 200, 0.10), transparent 60%),
    radial-gradient(700px 500px at 0% 30%, rgba(56, 189, 248, 0.08), transparent 60%),
    radial-gradient(900px 700px at 60% 110%, rgba(245, 181, 61, 0.05), transparent 60%);
  pointer-events: none;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: var(--accent); color: #042; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }

/* Skip link */
.skip-link {
  position: fixed; top: -60px; left: 16px; z-index: 200;
  background: var(--accent); color: #042; padding: 10px 16px;
  border-radius: 8px; font-weight: 600; transition: top .2s;
}
.skip-link:focus { top: 16px; }

/* Focus ring */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ----------------------- Scroll progress -------------------------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--grad); z-index: 120;
  box-shadow: 0 0 12px rgba(47, 224, 200, 0.6);
  transition: width .08s linear;
}

/* ------------------------------ Nav ------------------------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .3s var(--ease), border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav--scrolled {
  background: var(--glass);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border);
}
.nav__inner { display: flex; align-items: center; gap: 14px; height: 72px; }
.nav__brand { margin-right: auto; display: inline-flex; }
.nav__logo {
  height: 30px; width: auto;
  /* invert the black signature logo to white for the dark theme */
  filter: var(--logo-filter) drop-shadow(0 1px 6px rgba(47,224,200,.25));
  transition: transform .3s var(--ease);
}
.nav__brand:hover .nav__logo { transform: scale(1.03); }

.nav__links { display: flex; align-items: center; gap: 6px; }
.nav__link {
  position: relative; padding: 9px 14px; border-radius: 9px;
  font-size: 0.92rem; font-weight: 500; color: var(--muted);
  transition: color .2s, background .2s;
}
.nav__link:hover { color: var(--text); }
.nav__link.is-active { color: var(--text); }
.nav__link.is-active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 3px; height: 2px;
  background: var(--grad); border-radius: 2px;
}
.nav__link--cta {
  background: var(--grad); color: #04201c !important; font-weight: 600;
  margin-left: 6px; box-shadow: 0 6px 20px -8px rgba(47, 224, 200, 0.6);
}
.nav__link--cta:hover { filter: brightness(1.08); }
.nav__link--cta::after { display: none; }

/* Theme toggle */
.theme-toggle {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 10px;
  display: grid; place-items: center;
  border: 1px solid var(--border); background: var(--fill); color: var(--muted);
  transition: color .2s, border-color .2s, background .2s, transform .2s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun  { display: block; }
html[data-theme="light"] .theme-toggle .icon-sun  { display: none; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav__toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s var(--ease); }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ------------------------------ Buttons --------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: 11px; font-weight: 600; font-size: 0.95rem;
  transition: transform .2s var(--ease), box-shadow .25s, filter .2s, background .2s;
  white-space: nowrap;
}
.btn--sm { padding: 9px 15px; font-size: 0.86rem; }
.btn--primary { background: var(--grad); color: #04201c; box-shadow: 0 10px 28px -10px rgba(47, 224, 200, 0.6); }
.btn--primary:hover { transform: translateY(-2px); filter: brightness(1.07); }
.btn--ghost { background: var(--fill-2); color: var(--text); border: 1px solid var(--border-strong); }
.btn--ghost:hover { transform: translateY(-2px); border-color: var(--accent); }
.btn--danger { background: rgba(255, 95, 109, 0.12); color: var(--red); border: 1px solid rgba(255, 95, 109, 0.4); }
.btn--danger:hover { background: rgba(255, 95, 109, 0.2); }

/* --------------------------- Status dots -------------------------- */
.status-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--green); position: relative; }
.status-dot--ok { background: var(--green); box-shadow: 0 0 0 0 rgba(61, 220, 132, 0.6); animation: pulse 2.4s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(61, 220, 132, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(61, 220, 132, 0); }
  100% { box-shadow: 0 0 0 0 rgba(61, 220, 132, 0); }
}

/* --------------------------- Section base ------------------------- */
.section { padding: clamp(70px, 11vw, 130px) 0; position: relative; }
.section__head { max-width: 680px; margin-bottom: 56px; }
.section__head.center { margin-inline: auto; text-align: center; }
.section__kicker {
  font-family: var(--font-mono); font-size: 0.82rem; letter-spacing: 0.05em;
  color: var(--accent); margin-bottom: 14px;
}
.section__title {
  font-family: var(--font-head); font-weight: 700; line-height: 1.1;
  font-size: clamp(1.9rem, 4.2vw, 3rem); letter-spacing: -0.02em;
}
.section__sub { margin-top: 16px; color: var(--muted); font-size: 1.05rem; }

.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* --------------------------- Reveal anim -------------------------- */
/* Only hide reveal elements when JS is active (html.js). If JS is off,
   everything stays visible — progressive enhancement, never hidden. */
html.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); will-change: opacity, transform; }
html.js .reveal.is-visible { opacity: 1; transform: none; }

/* =================================================================
   HERO
   ================================================================= */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; overflow: hidden; padding-top: 90px; }
/* Animated data-network background — fixed behind the whole page (see #bgCanvas in <body>) */
.site-canvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; opacity: 0.6; }
.hero__grid-overlay {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image:
    linear-gradient(rgba(148,163,184,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 100%);
}
.hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 50px; align-items: center; width: 100%; }

.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.84rem; color: var(--muted);
  background: var(--fill); border: 1px solid var(--border);
  padding: 7px 14px; border-radius: 999px; margin-bottom: 22px;
}
.hero__title {
  font-family: var(--font-head); font-weight: 700; letter-spacing: -0.03em; line-height: 0.96;
  font-size: clamp(3rem, 9vw, 6rem); margin-bottom: 14px;
}
.hero__tagline { font-size: clamp(1.1rem, 2.4vw, 1.5rem); color: var(--muted); margin-bottom: 28px; }
.hero__tagline::before { content: "// "; color: var(--accent); font-family: var(--font-mono); }

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* Terminal */
.terminal {
  font-family: var(--font-mono); background: var(--terminal-bg);
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
  box-shadow: var(--shadow-sm); max-width: 540px; backdrop-filter: blur(4px);
}
.terminal__bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; background: rgba(255,255,255,0.04); border-bottom: 1px solid rgba(148,163,184,0.16); }
.terminal__dot { width: 11px; height: 11px; border-radius: 50%; background: #2a3548; }
.terminal__dot:nth-child(1) { background: #ff5f57; } .terminal__dot:nth-child(2) { background: #febc2e; } .terminal__dot:nth-child(3) { background: #28c840; }
.terminal__title { margin-left: 10px; font-size: 0.76rem; color: var(--dim); }
.terminal__body { padding: 16px 18px; font-size: 0.86rem; line-height: 1.9; }
.terminal__line { white-space: pre-wrap; word-break: break-word; color: #e7eef8; }
.terminal__prompt { color: var(--accent); }
.terminal__path { color: var(--accent-2); }
.terminal__sep { color: var(--dim); }
.terminal__out { color: var(--muted); }
#typed { color: var(--amber); }
.caret { display: inline-block; width: 9px; height: 1.05em; background: var(--accent); margin-left: 2px; vertical-align: text-bottom; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Hero photo */
.hero__media { display: flex; justify-content: center; }
.hero__photo-frame { position: relative; border-radius: 20px; padding: 8px; background: linear-gradient(160deg, rgba(47,224,200,.3), rgba(56,189,248,.05) 40%, rgba(245,181,61,.25)); box-shadow: var(--shadow); max-width: 360px; }
.hero__photo { border-radius: 14px; width: 100%; aspect-ratio: 3/4; object-fit: cover; filter: saturate(1.05) contrast(1.03); }
.hero__photo-tag {
  position: absolute; bottom: 18px; left: 18px; right: 18px;
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.04em; color: var(--text);
  background: var(--tag-bg); backdrop-filter: blur(8px);
  border: 1px solid var(--border); padding: 8px 12px; border-radius: 9px;
}

/* Scroll cue */
.hero__scroll { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 3; width: 26px; height: 42px; border: 2px solid var(--border-strong); border-radius: 14px; display: flex; justify-content: center; padding-top: 8px; }
.hero__scroll span { width: 4px; height: 8px; background: var(--accent); border-radius: 2px; animation: scrolldot 1.8s infinite; }
@keyframes scrolldot { 0% { opacity: 0; transform: translateY(-4px); } 40% { opacity: 1; } 80% { opacity: 0; transform: translateY(10px); } 100% { opacity: 0; } }

/* =================================================================
   STATS
   ================================================================= */
.stats { border-block: 1px solid var(--border); background: var(--wash); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding-block: 54px; }
.stat { text-align: center; position: relative; }
.stat:not(:last-child)::after { content: ""; position: absolute; right: -12px; top: 10%; height: 80%; width: 1px; background: var(--border); }
.stat__num { display: block; font-family: var(--font-head); font-weight: 700; font-size: clamp(2.2rem, 5vw, 3.2rem); line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat__label { display: block; margin-top: 10px; font-size: 0.9rem; color: var(--muted); }

/* =================================================================
   ABOUT
   ================================================================= */
.about__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: center; }
.about__media { position: relative; }
.about__photo { border-radius: var(--radius); width: 100%; aspect-ratio: 4/3; object-fit: cover; border: 1px solid var(--border); box-shadow: var(--shadow); }
.about__media-badge {
  position: absolute; bottom: -16px; right: -10px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.82rem; font-weight: 500; color: var(--accent);
  background: var(--surface); border: 1px solid var(--border-strong); padding: 10px 16px; border-radius: 999px; box-shadow: var(--shadow-sm);
}
.about__lead { font-size: 1.12rem; margin-top: 8px; }
.about__lead strong { color: var(--text); font-weight: 600; border-bottom: 1.5px solid var(--accent); }
.about__text { color: var(--muted); margin-top: 16px; }
.about__facts { margin-top: 28px; display: grid; gap: 1px; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; background: var(--border); }
.about__facts li { display: flex; justify-content: space-between; gap: 16px; padding: 13px 18px; background: var(--bg); flex-wrap: wrap; }
.about__fact-k { font-family: var(--font-mono); font-size: 0.82rem; color: var(--dim); }
.about__fact-v { font-weight: 500; color: var(--text); }

/* =================================================================
   CONSOLE / STATUS DASHBOARD
   ================================================================= */
.console-section { background: radial-gradient(900px 400px at 50% 0%, rgba(47,224,200,0.05), transparent 70%); }
.console {
  max-width: 880px; margin-inline: auto;
  font-family: var(--font-mono);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.console__bar { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; background: var(--fill); border-bottom: 1px solid var(--border); font-size: 0.82rem; }
.console__job { color: var(--muted); letter-spacing: 0.03em; }
.console__state { display: inline-flex; align-items: center; gap: 8px; color: var(--green); font-weight: 700; letter-spacing: 0.06em; transition: color .3s; }
.console__state.is-threat { color: var(--red); }
.console__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); }
.console__cell { background: var(--cell-bg); padding: 18px 20px; }
.console__k { display: block; font-size: 0.72rem; color: var(--dim); letter-spacing: 0.05em; text-transform: uppercase; }
.console__v { display: block; margin-top: 7px; font-size: 1.02rem; color: var(--text); font-weight: 500; }
.console__v--ok { color: var(--green); }
.console__footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 20px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.console__health { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 240px; }
.console__bar-track { flex: 1; height: 8px; border-radius: 999px; background: var(--track); overflow: hidden; }
.console__bar-fill { height: 100%; width: 100%; background: linear-gradient(90deg, var(--green), var(--accent)); border-radius: 999px; transition: width .5s var(--ease), background .3s; }
.console__health-val { color: var(--green); font-weight: 700; font-size: 0.9rem; min-width: 42px; text-align: right; }
.console__hint { padding: 0 20px 16px; font-size: 0.8rem; color: var(--amber); min-height: 1.2em; }

/* =================================================================
   TIMELINE
   ================================================================= */
.timeline { position: relative; max-width: 820px; margin-inline: auto; padding-left: 4px; }
.timeline::before { content: ""; position: absolute; left: 11px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--accent), var(--accent-2) 50%, var(--border) 100%); }
.timeline__item { position: relative; padding-left: 46px; padding-bottom: 34px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__marker { position: absolute; left: 4px; top: 6px; width: 18px; height: 18px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); box-shadow: 0 0 0 4px rgba(47,224,200,0.12); z-index: 1; }
.timeline__marker--origin { border-color: var(--amber); box-shadow: 0 0 0 4px rgba(245,181,61,0.14); }
.timeline__card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 22px 24px; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s; }
.timeline__card:hover { transform: translateX(5px); border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.timeline__date { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent); }
.timeline__role { font-family: var(--font-head); font-size: 1.18rem; margin-top: 8px; line-height: 1.25; }
.timeline__org { color: var(--amber); font-weight: 500; margin-top: 4px; font-size: 0.96rem; }
.timeline__note { color: var(--dim); font-weight: 400; font-size: 0.85rem; }
.timeline__desc { color: var(--muted); margin-top: 10px; font-size: 0.96rem; }

/* =================================================================
   SKILLS
   ================================================================= */
.skills__layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.skillbars { display: flex; flex-direction: column; gap: 20px; }
.skillbar__head { display: flex; justify-content: space-between; font-size: 0.92rem; margin-bottom: 9px; }
.skillbar__pct { font-family: var(--font-mono); color: var(--accent); font-size: 0.84rem; }
.skillbar__track { height: 9px; background: var(--track); border-radius: 999px; overflow: hidden; }
.skillbar__fill { height: 100%; width: 0; background: var(--grad); border-radius: 999px; transition: width 1.2s var(--ease); position: relative; }

.skillcards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.skillcard { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 22px; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s; }
.skillcard:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow-sm); }
.skillcard__icon { width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; background: rgba(47,224,200,0.1); color: var(--accent); margin-bottom: 14px; }
.skillcard__icon svg { width: 22px; height: 22px; }
.skillcard__title { font-family: var(--font-head); font-size: 1.05rem; margin-bottom: 12px; }
.skillcard__list { display: flex; flex-direction: column; gap: 8px; }
.skillcard__list li { position: relative; padding-left: 18px; font-size: 0.9rem; color: var(--muted); }
.skillcard__list li::before { content: "▹"; position: absolute; left: 0; color: var(--accent); }

.certs { margin-top: 50px; padding-top: 34px; border-top: 1px solid var(--border); }
.certs__label { font-family: var(--font-mono); font-size: 0.82rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; }
.certs__list { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.cert {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.86rem; color: var(--text);
  background: var(--fill); border: 1px solid var(--border);
  padding: 9px 16px; border-radius: 999px; transition: border-color .25s, transform .25s, color .25s;
}
.cert::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); }
.cert:hover { border-color: var(--amber); transform: translateY(-2px); }

/* =================================================================
   3-2-1 RESILIENCE
   ================================================================= */
.rule321 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.rule321__card {
  text-align: left; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 22px; overflow: hidden; position: relative;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s, background .35s;
}
.rule321__card::before { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
.rule321__card:hover, .rule321__card.is-open { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.rule321__card:hover::before, .rule321__card.is-open::before { transform: scaleX(1); }
.rule321__card--plus { background: linear-gradient(180deg, rgba(245,181,61,0.07), var(--surface)); }
.rule321__num { font-family: var(--font-head); font-weight: 700; font-size: 3.4rem; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.rule321__card--plus .rule321__num { background: linear-gradient(120deg, var(--amber), #ffd27a); -webkit-background-clip: text; background-clip: text; }
.rule321__sub { font-size: 1.6rem; opacity: 0.7; }
.rule321__head { display: block; font-family: var(--font-head); font-size: 1.02rem; margin-top: 10px; color: var(--text); }
.rule321__detail { display: block; margin-top: 0; max-height: 0; opacity: 0; overflow: hidden; color: var(--muted); font-size: 0.9rem; transition: max-height .45s var(--ease), opacity .35s, margin-top .35s; }
.rule321__card.is-open .rule321__detail { max-height: 220px; opacity: 1; margin-top: 14px; }

/* =================================================================
   THREAT SIM — "Ransomware vs. The Vault"
   ================================================================= */
.sim { margin-top: 30px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: clamp(20px, 3vw, 30px); box-shadow: var(--shadow-sm); }
.sim__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px 28px; flex-wrap: wrap; margin-bottom: 22px; }
.sim__title { font-family: var(--font-head); font-size: 1.4rem; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.sim__rated { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: .1em; text-transform: uppercase; color: var(--amber); border: 1px solid var(--amber); border-radius: 5px; padding: 3px 7px; }
.sim__text { color: var(--muted); margin-top: 9px; font-size: 0.96rem; max-width: 56ch; }
.sim__controls { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.sim__threat { display: flex; align-items: center; gap: 9px; font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); }
.sim__threat-label { text-transform: uppercase; letter-spacing: .08em; }
.sim__threat-track { width: 84px; height: 7px; border-radius: 999px; background: var(--track); overflow: hidden; }
.sim__threat-fill { display: block; height: 100%; width: 0%; border-radius: 999px; background: var(--green); transition: width .5s var(--ease), background .4s; }
.sim__threat-val { min-width: 36px; text-align: right; color: var(--text); }

.sim__stage {
  position: relative; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border);
  padding: 34px 18px 28px;
  background:
    radial-gradient(120% 130% at 50% 0%, rgba(56,189,248,0.07), transparent 55%),
    repeating-linear-gradient(0deg, transparent 0 25px, rgba(148,163,184,0.045) 25px 26px);
}
.sim__row { display: flex; align-items: stretch; justify-content: space-between; gap: 10px; position: relative; z-index: 2; }
.sim__row::before { content: ""; position: absolute; left: 9%; right: 9%; top: 50%; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); opacity: .28; z-index: -1; }

.sim__node {
  flex: 1 1 0; min-width: 0; position: relative;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: var(--node-bg); border: 1.5px solid var(--border-strong); border-radius: 14px;
  padding: 14px 8px 12px; text-align: center;
  transition: border-color .35s, box-shadow .35s, transform .35s, background .35s;
}
.sim__icon { font-size: 1.7rem; line-height: 1; transition: filter .3s, transform .3s; }
.sim__name { font-family: var(--font-mono); font-weight: 700; font-size: 0.8rem; color: var(--text); letter-spacing: .04em; }
.sim__state { font-family: var(--font-mono); font-size: 0.62rem; color: var(--dim); min-height: 1.3em; line-height: 1.2; }
.sim__lock { position: absolute; top: 7px; right: 8px; font-size: 1rem; opacity: 0; transform: scale(.3) rotate(-25deg); transition: opacity .3s var(--ease), transform .3s var(--ease); }
.sim__shield { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); font-size: 1.15rem; filter: drop-shadow(0 0 6px rgba(61,220,132,.6)); }

.sim__node--vault { border-color: var(--green); }
.sim__node--vault .sim__name { color: var(--green); }

.sim__node.is-hit { border-color: var(--red); background: rgba(255,95,109,0.10); box-shadow: 0 0 28px -6px rgba(255,95,109,.7); }
.sim__node.is-hit .sim__icon { filter: grayscale(1) brightness(.7); }
.sim__node.is-hit .sim__name { color: var(--red); }
.sim__node.is-hit .sim__lock { opacity: 1; transform: scale(1) rotate(0); }
.sim__node.shake { animation: simshake .4s; }
@keyframes simshake { 0%,100%{ transform: translateX(0); } 20%{ transform: translateX(-5px); } 60%{ transform: translateX(5px); } }

.sim__node.is-restoring { border-color: var(--amber); background: rgba(245,181,61,0.10); box-shadow: 0 0 24px -8px rgba(245,181,61,.6); }
.sim__node.is-restoring .sim__name { color: var(--amber); }
.sim__node.is-restoring .sim__icon { animation: simspin 1s linear infinite; }
@keyframes simspin { to { transform: rotate(360deg); } }

.sim__node.is-safe { border-color: var(--green); background: rgba(61,220,132,0.08); box-shadow: 0 0 28px -8px rgba(61,220,132,.6); }
.sim__node.is-safe .sim__name { color: var(--green); }
.sim__node.is-safe .sim__icon { transform: scale(1.06); }

.sim__node--vault.block { animation: vaultblock .55s var(--ease); }
@keyframes vaultblock { 0%,100%{ transform: translateY(0); } 35%{ transform: translateY(-9px) scale(1.05); } }
.sim__node--vault.block .sim__shield { animation: shieldpulse .55s var(--ease); }
@keyframes shieldpulse { 0%,100%{ transform: translateX(-50%) scale(1); } 40%{ transform: translateX(-50%) scale(1.6); filter: drop-shadow(0 0 12px rgba(61,220,132,.9)); } }

.sim__villain {
  position: absolute; top: 12px; left: 7%; z-index: 4; font-size: 2rem;
  transform: translateX(-260%); opacity: 0; pointer-events: none;
  transition: transform .7s var(--ease), opacity .4s;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,.45));
}
.sim__villain.is-attacking { transform: translateX(0) rotate(-7deg); opacity: 1; }
.sim__villain.is-fleeing { transform: translateX(900%) rotate(720deg) scale(.55); opacity: 0; }

.sim__wave { position: absolute; inset: 0; z-index: 3; pointer-events: none; opacity: 0; transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(61,220,132,.30), transparent); }
.sim__wave.run { animation: simwave 1.15s var(--ease); }
@keyframes simwave { 0%{ opacity: 0; transform: translateX(-100%); } 25%{ opacity: 1; } 100%{ opacity: 0; transform: translateX(100%); } }

.sim__stamp { position: absolute; inset: 0; z-index: 5; display: grid; place-items: center; pointer-events: none; opacity: 0; }
.sim__stamp span {
  font-family: var(--font-head); font-weight: 700; font-size: clamp(1.3rem, 5vw, 2.3rem); line-height: .92; text-align: center;
  color: var(--green); border: 4px solid var(--green); border-radius: 14px; padding: 12px 22px; text-transform: uppercase; letter-spacing: .05em;
  transform: rotate(-9deg) scale(1.7); box-shadow: 0 0 30px -6px rgba(61,220,132,.55); background: rgba(8,18,13,.4); backdrop-filter: blur(2px);
}
.sim__stamp.show { opacity: 1; }
.sim__stamp.show span { animation: simstamp .55s var(--ease) forwards; }
@keyframes simstamp { 0%{ opacity: 0; transform: rotate(-9deg) scale(1.9); } 60%{ opacity: 1; transform: rotate(-9deg) scale(.92); } 100%{ opacity: 1; transform: rotate(-9deg) scale(1); } }

.sim__confetti { position: absolute; top: 0; width: 9px; height: 9px; z-index: 6; pointer-events: none; border-radius: 2px; }

.sim__terminal { margin-top: 18px; background: var(--terminal-bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; }
.sim__log { display: flex; flex-direction: column; justify-content: flex-end; gap: 6px; min-height: 118px; margin: 0; font-family: var(--font-mono); font-size: 0.84rem; color: #cdd8e6; }
.sim__line { display: flex; gap: 8px; line-height: 1.45; margin: 0; }
.sim__pre { color: var(--accent); font-weight: 700; flex-shrink: 0; }
.sim__line--new { animation: simlinein .4s var(--ease); }
@keyframes simlinein { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }

/* =================================================================
   PROJECTS
   ================================================================= */
.projects__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.projcard { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 24px; transition: transform .3s var(--ease), border-color .3s, background .3s; position: relative; overflow: hidden; }
.projcard:hover { transform: translateY(-5px); border-color: var(--accent); background: rgba(47,224,200,0.04); }
.projcard__idx { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent); opacity: 0.8; }
.projcard h3 { font-family: var(--font-head); font-size: 1.08rem; margin: 10px 0 8px; }
.projcard p { color: var(--muted); font-size: 0.9rem; }
.projcard--fun { background: linear-gradient(180deg, rgba(245,181,61,0.08), var(--surface)); }
.projcard--fun:hover { border-color: var(--amber); }
.projcard--fun .projcard__idx { color: var(--amber); }

.feature {
  display: flex; align-items: center; gap: 22px; margin-top: 26px;
  background: linear-gradient(120deg, rgba(47,224,200,0.08), rgba(56,189,248,0.04));
  border: 1px solid var(--border-strong); border-radius: var(--radius); padding: 26px 28px;
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.feature:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow-sm); }
.feature__icon { flex-shrink: 0; width: 54px; height: 54px; border-radius: 13px; display: grid; place-items: center; background: rgba(47,224,200,0.12); color: var(--accent); }
.feature__icon svg { width: 26px; height: 26px; }
.feature__tag { font-family: var(--font-mono); font-size: 0.76rem; color: var(--amber); letter-spacing: 0.03em; }
.feature__title { font-family: var(--font-head); font-size: 1.3rem; margin: 5px 0 6px; }
.feature__text { color: var(--muted); font-size: 0.94rem; }
.feature__arrow { margin-left: auto; font-size: 1.6rem; color: var(--accent); transition: transform .3s var(--ease); }
.feature:hover .feature__arrow { transform: translateX(6px); }

/* =================================================================
   TESTIMONIALS
   ================================================================= */
.quotes { columns: 3; column-gap: 20px; }
.quote { break-inside: avoid; margin-bottom: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 26px 28px; position: relative; transition: border-color .3s, transform .3s var(--ease); }
.quote:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.quote::before { content: "\201C"; font-family: var(--font-head); font-size: 3.4rem; line-height: 0.6; color: var(--accent); opacity: 0.5; display: block; margin-bottom: 8px; }
.quote blockquote { color: var(--text); font-size: 0.98rem; line-height: 1.7; }

/* =================================================================
   CONTACT
   ================================================================= */
.contact { position: relative; overflow: hidden; }
.contact__bg { position: absolute; inset: 0; background: radial-gradient(700px 400px at 50% 120%, rgba(47,224,200,0.12), transparent 70%); pointer-events: none; }
.contact__inner { position: relative; z-index: 1; }
.contact__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 920px; margin-inline: auto; }
.contactcard { display: flex; align-items: center; gap: 16px; text-align: left; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; transition: transform .3s var(--ease), border-color .3s, box-shadow .3s; width: 100%; }
.contactcard:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow-sm); }
.contactcard--static { cursor: default; }
.contactcard--static:hover { transform: none; border-color: var(--border); box-shadow: none; }
.contactcard__icon { flex-shrink: 0; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: rgba(47,224,200,0.1); color: var(--accent); }
.contactcard__icon svg { width: 22px; height: 22px; }
.contactcard__body { display: flex; flex-direction: column; min-width: 0; }
.contactcard__k { font-size: 0.78rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.05em; }
.contactcard__hint { text-transform: none; letter-spacing: 0; color: var(--accent); font-size: 0.74rem; }
.contactcard__v { font-weight: 600; color: var(--text); margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.contactcard__arrow { margin-left: auto; color: var(--accent); font-size: 1.2rem; }

/* =================================================================
   FOOTER
   ================================================================= */
.footer { border-top: 1px solid var(--border); padding: 56px 0 40px; background: var(--wash); }
.footer__inner { display: grid; grid-template-columns: 1fr auto; gap: 30px 40px; align-items: center; }
.footer__logo { height: 28px; filter: var(--logo-filter); opacity: 0.9; }
.footer__tag { color: var(--dim); font-size: 0.86rem; margin-top: 12px; font-family: var(--font-mono); }
.footer__nav { display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: flex-end; }
.footer__nav a { color: var(--muted); font-size: 0.92rem; transition: color .2s; }
.footer__nav a:hover { color: var(--accent); }
.footer__copy { grid-column: 1 / -1; padding-top: 24px; border-top: 1px solid var(--border); color: var(--dim); font-size: 0.84rem; }
.footer__hint { display: block; margin-top: 4px; opacity: 0.7; }
.footer__heart { color: var(--red); font-weight: 700; display: inline-block; animation: heartbeat 1.6s ease-in-out infinite; }
@keyframes heartbeat { 0%, 100% { transform: scale(1); } 15% { transform: scale(1.28); } 30% { transform: scale(1); } 45% { transform: scale(1.14); } 60% { transform: scale(1); } }

/* Back to top */
.to-top { position: fixed; bottom: 24px; right: 24px; z-index: 90; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--border-strong); color: var(--accent); box-shadow: var(--shadow-sm); opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity .3s, transform .3s, visibility .3s, background .2s; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--accent); color: #042; }

/* Toast */
.toast { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 140%); z-index: 200; background: var(--surface); border: 1px solid var(--accent); color: var(--text); padding: 14px 22px; border-radius: 12px; font-family: var(--font-mono); font-size: 0.88rem; box-shadow: var(--shadow); transition: transform .45s var(--ease); max-width: 90vw; text-align: center; }
.toast.is-visible { transform: translate(-50%, 0); }
.toast strong { color: var(--accent); }

/* =================================================================
   RESPONSIVE
   ================================================================= */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__media { order: -1; }
  .hero__photo-frame { max-width: 280px; }
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .about__media { max-width: 460px; }
  .skills__layout { grid-template-columns: 1fr; gap: 40px; }
  .quotes { columns: 2; }
}

@media (max-width: 760px) {
  .nav__links {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--glass-menu); backdrop-filter: blur(14px);
    padding: 18px 24px 26px; border-bottom: 1px solid var(--border);
    transform: translateY(-130%); transition: transform .4s var(--ease); box-shadow: var(--shadow);
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__link { padding: 13px 14px; font-size: 1rem; }
  .nav__link.is-active::after { display: none; }
  .nav__link--cta { margin-left: 0; margin-top: 6px; text-align: center; }
  .nav__toggle { display: flex; }
  .nav--scrolled, .nav.has-open-menu { background: var(--glass-strong); backdrop-filter: blur(14px); border-bottom-color: var(--border); }

  .stats__grid { grid-template-columns: 1fr 1fr; gap: 30px 20px; }
  .stat:nth-child(2)::after { display: none; }
  .console__grid { grid-template-columns: 1fr 1fr; }
  .skillcards { grid-template-columns: 1fr; }
  .rule321 { grid-template-columns: 1fr 1fr; }
  .quotes { columns: 1; }
  .contact__cards { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__nav { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .sim__row { flex-wrap: wrap; }
  .sim__node { flex: 1 1 calc(50% - 6px); }
  .sim__row::before { display: none; }
  .sim__villain { font-size: 1.6rem; }
  .sim__head { gap: 16px; }
  .sim__controls { width: 100%; justify-content: space-between; }
}

@media (max-width: 420px) {
  .container { padding-inline: 18px; }
  .stats__grid { grid-template-columns: 1fr; }
  .stat::after { display: none !important; }
  .rule321 { grid-template-columns: 1fr; }
  .console__grid { grid-template-columns: 1fr; }
  .hero__actions .btn { flex: 1; justify-content: center; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  html.js .reveal { opacity: 1; transform: none; }
}