/* ==========================================================================
   Shamsher Tamang — Portfolio
   style.css — design tokens, base styles, layout, components
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Surfaces */
  --bg-0: #07080c;
  --bg-1: #0c0e15;
  --bg-2: #12141d;
  --bg-3: #191c28;

  /* Glass */
  --glass-fill: rgba(255, 255, 255, 0.045);
  --glass-fill-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.09);
  --glass-border-strong: rgba(255, 255, 255, 0.16);

  /* Text */
  --text-0: #f4f5f9;
  --text-1: #b6bac6;
  --text-2: #797e8c;
  --text-3: #4d5160;

  /* Accents */
  --violet: #7c5cff;
  --violet-soft: #a58bff;
  --cyan: #22d3ee;
  --emerald: #34d399;
  --amber: #fbbf24;

  --gradient-signal: linear-gradient(120deg, #7c5cff 0%, #22d3ee 100%);
  --gradient-growth: linear-gradient(120deg, #34d399 0%, #22d3ee 100%);
  --gradient-warm: linear-gradient(120deg, #fbbf24 0%, #7c5cff 100%);

  /* Type */
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  /* Scale */
  --fs-xs: clamp(0.72rem, 0.7rem + 0.1vw, 0.8rem);
  --fs-sm: clamp(0.85rem, 0.83rem + 0.1vw, 0.95rem);
  --fs-base: clamp(1rem, 0.97rem + 0.15vw, 1.08rem);
  --fs-lg: clamp(1.2rem, 1.1rem + 0.4vw, 1.5rem);
  --fs-xl: clamp(1.6rem, 1.4rem + 1vw, 2.2rem);
  --fs-2xl: clamp(2.2rem, 1.8rem + 2vw, 3.4rem);
  --fs-3xl: clamp(2.8rem, 2.1rem + 3.5vw, 5rem);

  /* Spacing / layout */
  --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  background: var(--bg-0);
  color: var(--text-0);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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;
}

input,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

::selection {
  background: var(--violet);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Background atmosphere ---------- */
.bg-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(60vmax 60vmax at 12% -5%, rgba(124, 92, 255, 0.16), transparent 60%),
    radial-gradient(50vmax 50vmax at 100% 20%, rgba(34, 211, 238, 0.12), transparent 60%),
    radial-gradient(45vmax 45vmax at 20% 100%, rgba(52, 211, 153, 0.08), transparent 60%);
}

.floating-shapes {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.floating-shapes span {
  position: absolute;
  border-radius: 50%;
  background: var(--gradient-signal);
  opacity: 0.08;
  filter: blur(2px);
  animation: floatShape 18s ease-in-out infinite;
}

/* ---------- Layout helpers ---------- */
.container {
  width: min(100% - var(--gutter) * 2, var(--container));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

section {
  position: relative;
  z-index: 1;
  padding: clamp(4rem, 9vw, 7.5rem) 0;
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--cyan);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-desc {
  margin-top: 1rem;
  color: var(--text-1);
  font-size: var(--fs-base);
  max-width: 54ch;
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), background 0.35s var(--ease-out), border-color 0.35s var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-signal);
  color: #08090d;
  box-shadow: 0 10px 30px -10px rgba(124, 92, 255, 0.55);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px -10px rgba(124, 92, 255, 0.7);
}

.btn-ghost {
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  color: var(--text-0);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.btn-ghost:hover {
  background: var(--glass-fill-hover);
  border-color: var(--glass-border-strong);
  transform: translateY(-3px);
}

.btn-sm {
  padding: 0.6rem 1.15rem;
  font-size: var(--fs-xs);
}

/* ---------- Glass Card ---------- */
.glass-card {
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: transform 0.4s var(--ease-out), border-color 0.4s var(--ease-out), background 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.glass-card:hover {
  border-color: var(--glass-border-strong);
  background: var(--glass-fill-hover);
  box-shadow: 0 20px 45px -20px rgba(0, 0, 0, 0.6);
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.3rem 0;
  transition: padding 0.4s var(--ease-out), background 0.4s var(--ease-out), border-color 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.navbar.is-scrolled {
  padding: 0.75rem 0;
  background: rgba(9, 10, 15, 0.72);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px -20px rgba(0, 0, 0, 0.8);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-signal);
  box-shadow: 0 0 12px var(--cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: var(--fs-sm);
  color: var(--text-1);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.3s var(--ease-out);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--gradient-signal);
  transition: width 0.35s var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-0);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 110;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-0);
  border-radius: 2px;
  transition: transform 0.35s var(--ease-out), opacity 0.35s var(--ease-out);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 7rem;
  padding-bottom: 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--cyan);
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
  padding: 0.4rem 0.9rem 0.4rem 0.6rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  background: var(--glass-fill);
}

.hero-kicker .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  position: relative;
}

.hero-kicker .pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--emerald);
  animation: pulseRing 2.2s ease-out infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.03em;
}

.hero-title span.line {
  display: block;
}

.hero-type {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  color: var(--text-1);
  margin-top: 1.4rem;
  min-height: 1.6em;
}

.hero-type .cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--cyan);
  margin-left: 3px;
  vertical-align: -0.15em;
  animation: blinkCursor 0.9s steps(1) infinite;
}

.hero-desc {
  margin-top: 1.4rem;
  color: var(--text-1);
  max-width: 52ch;
  font-size: var(--fs-base);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.2rem;
}

.hero-meta {
  display: flex;
  gap: 2rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.hero-meta div {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hero-meta strong {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
}

.hero-meta span {
  font-size: var(--fs-xs);
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hero signature visual */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual .orb-ring {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  border: 1px dashed var(--glass-border-strong);
  animation: spinSlow 40s linear infinite;
}

.hero-visual .orb-ring.ring-2 {
  inset: 16%;
  animation-duration: 55s;
  animation-direction: reverse;
  border-style: solid;
  border-color: var(--glass-border);
}

.signature-svg {
  width: 82%;
  height: 82%;
  position: relative;
  z-index: 2;
}

.signature-svg .chart-path {
  fill: none;
  stroke: url(#lineGradient);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 620;
  stroke-dashoffset: 620;
  animation: drawPath 2.6s var(--ease-out) 0.4s forwards;
}

.signature-svg .chart-dot {
  fill: var(--bg-0);
  stroke: var(--cyan);
  stroke-width: 2;
  opacity: 0;
  animation: popIn 0.5s var(--ease-out) forwards;
}

.signature-svg .bracket {
  fill: none;
  stroke: var(--violet-soft);
  stroke-width: 2.5;
  stroke-linecap: round;
  opacity: 0;
  animation: fadeIn 0.8s var(--ease-out) 2.6s forwards;
}

.signature-svg .grid-line {
  stroke: var(--glass-border);
  stroke-width: 1;
}

.scroll-indicator {
  position: absolute;
  left: 50%;
  bottom: clamp(1.2rem, 3vw, 2.2rem);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 2;
}

.scroll-indicator .wheel {
  width: 22px;
  height: 36px;
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-pill);
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-indicator .wheel::after {
  content: "";
  width: 3px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
  animation: scrollDot 1.8s ease-in-out infinite;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.about-photo {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--glass-border);
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-photo .frame-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
}

.about-copy p {
  color: var(--text-1);
  margin-bottom: 1.1rem;
}

.about-copy h3 {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  margin: 1.8rem 0 0.8rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--glass-border);
  background: var(--glass-fill);
  color: var(--text-1);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.about-stats .stat {
  padding: 1.2rem;
  text-align: center;
}

.about-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-xl);
}

.about-stats span {
  font-size: var(--fs-xs);
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Skills ---------- */
.skills-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2.5rem;
}

.skill-tab {
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--glass-border);
  background: var(--glass-fill);
  font-size: var(--fs-sm);
  color: var(--text-1);
  transition: all 0.3s var(--ease-out);
}

.skill-tab.active,
.skill-tab:hover {
  color: var(--bg-0);
  background: var(--gradient-signal);
  border-color: transparent;
}

.skills-panels {
  position: relative;
}

.skill-panel {
  display: none;
}

.skill-panel.active {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.skill-item {
  padding: 1.3rem 1.5rem;
}

.skill-item-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
}

.skill-item-head span.pct {
  color: var(--cyan);
}

.progress-track {
  width: 100%;
  height: 7px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: var(--gradient-signal);
  width: 0%;
  transition: width 1.4s var(--ease-out);
}

/* ---------- Timeline (Experience / Education) ---------- */
.timeline {
  position: relative;
  padding-left: clamp(1.6rem, 4vw, 2.8rem);
  border-left: 1px solid var(--glass-border);
}

.timeline-item {
  position: relative;
  padding-bottom: clamp(2.2rem, 4vw, 3rem);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(clamp(1.6rem, 4vw, 2.8rem) * -1 - 6px);
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-0);
  border: 2px solid var(--cyan);
}

.timeline-card {
  padding: 1.6rem clamp(1.2rem, 3vw, 2rem);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  display: inline-block;
}

.timeline-role {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  margin-bottom: 0.2rem;
}

.timeline-org {
  color: var(--text-1);
  font-size: var(--fs-sm);
  margin-bottom: 0.8rem;
}

.timeline-desc {
  color: var(--text-1);
  font-size: var(--fs-sm);
}

.placeholder-flag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--amber);
}

.placeholder-flag::before {
  content: "◆";
  font-size: 0.6rem;
}

/* ---------- Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.project-thumb {
  aspect-ratio: 16 / 10;
  position: relative;
  background: linear-gradient(135deg, var(--bg-3), var(--bg-2));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border);
}

.project-thumb .thumb-icon {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--text-3);
  letter-spacing: 0.05em;
}

.project-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-signal);
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}

.project-card:hover .project-thumb::after {
  opacity: 0.12;
}

.project-body {
  padding: 1.4rem 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1;
}

.project-title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
}

.project-desc {
  color: var(--text-1);
  font-size: var(--fs-sm);
  flex: 1;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.3rem 0 0.4rem;
}

.project-actions {
  display: flex;
  gap: 0.7rem;
  margin-top: 0.5rem;
}

.projects-more {
  text-align: center;
  margin-top: 2.5rem;
}

/* ---------- GitHub ---------- */
.github-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.github-summary {
  padding: 1.8rem;
}

.github-summary .gh-user {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.github-summary .gh-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  object-fit: cover;
}

.gh-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  margin-top: 1.4rem;
}

.gh-stats .stat {
  text-align: center;
  padding: 0.9rem 0.4rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
}

.gh-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-lg);
}

.gh-stats span {
  font-size: var(--fs-xs);
  color: var(--text-2);
}

.lang-bars {
  margin-top: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.lang-bar-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
}

.lang-bar-row .lang-name {
  width: 90px;
  flex-shrink: 0;
  color: var(--text-1);
}

.lang-bar-row .lang-track {
  flex: 1;
  height: 6px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.lang-bar-row .lang-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: var(--gradient-growth);
  width: 0%;
  transition: width 1.2s var(--ease-out);
}

.repo-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.repo-card {
  padding: 1.2rem 1.3rem;
}

.repo-card .repo-name {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--cyan);
  margin-bottom: 0.5rem;
  display: block;
  word-break: break-word;
}

.repo-card .repo-desc {
  font-size: var(--fs-xs);
  color: var(--text-1);
  min-height: 2.6em;
  margin-bottom: 0.8rem;
}

.repo-card .repo-meta {
  display: flex;
  gap: 1rem;
  font-size: var(--fs-xs);
  color: var(--text-2);
  font-family: var(--font-mono);
}

.gh-state-msg {
  padding: 2rem;
  text-align: center;
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  grid-column: 1 / -1;
}

/* ---------- Certificates ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.cert-card {
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-height: 190px;
}

.cert-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--bg-0);
  margin-bottom: 0.4rem;
}

.cert-name {
  font-family: var(--font-display);
  font-size: var(--fs-base);
}

.cert-issuer {
  font-size: var(--fs-xs);
  color: var(--text-2);
  font-family: var(--font-mono);
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

.service-card {
  padding: 1.7rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.service-index {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-3);
}

.service-title {
  font-family: var(--font-display);
  font-size: var(--fs-base);
}

.service-desc {
  font-size: var(--fs-xs);
  color: var(--text-1);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: start;
}

.contact-info-card {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.contact-row {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.contact-icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--cyan);
}

.contact-row strong {
  display: block;
  font-size: var(--fs-sm);
}

.contact-row span,
.contact-row a {
  color: var(--text-1);
  font-size: var(--fs-xs);
}

.contact-row a:hover {
  color: var(--cyan);
}

.map-placeholder {
  margin-top: 0.4rem;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  border: 1px dashed var(--glass-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.4rem;
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-align: center;
  padding: 1rem;
}

.contact-form {
  padding: 1.8rem clamp(1.4rem, 3vw, 2.2rem);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.1rem;
  position: relative;
}

.form-group label {
  display: block;
  font-size: var(--fs-xs);
  font-family: var(--font-mono);
  color: var(--text-2);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  transition: border-color 0.3s var(--ease-out), background 0.3s var(--ease-out);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  background: rgba(255, 255, 255, 0.05);
  outline: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.form-error {
  font-size: var(--fs-xs);
  color: #ff7a7a;
  margin-top: 0.4rem;
  display: none;
}

.form-group.has-error input,
.form-group.has-error textarea {
  border-color: #ff7a7a;
}

.form-group.has-error .form-error {
  display: block;
}

.form-status {
  margin-top: 1rem;
  font-size: var(--fs-sm);
  font-family: var(--font-mono);
  min-height: 1.4em;
}

.form-status.success {
  color: var(--emerald);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--glass-border);
  padding: 3rem 0 2rem;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 1.6rem;
}

.social-icons {
  display: flex;
  gap: 0.8rem;
}

.social-icons a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  transition: all 0.3s var(--ease-out);
}

.social-icons a:hover {
  background: var(--gradient-signal);
  color: var(--bg-0);
  border-color: transparent;
  transform: translateY(-3px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-2);
  font-size: var(--fs-xs);
}

.back-to-top {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  right: clamp(1rem, 3vw, 2.2rem);
  bottom: clamp(1rem, 3vw, 2.2rem);
  z-index: 90;
  background: rgba(9, 10, 15, 0.7);
  backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all 0.35s var(--ease-out);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- Page header (sub-pages) ---------- */
.page-header {
  padding-top: 9rem;
  padding-bottom: 3rem;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-2);
  margin-bottom: 1rem;
}

.breadcrumb a {
  color: var(--text-1);
}

.breadcrumb a:hover {
  color: var(--cyan);
}

/* ---------- Scroll reveal base state ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }