/* =============================================================
   Manish Kumar Verma — Portfolio
   Design language: "blueprint" — the drafting-table grid of an
   engineer who builds and ships things, paired with a terminal
   console that logs his real, measured impact.
   ============================================================= */

:root {
  /* ---- color tokens ---- */
  --ink: #0E2A47;          /* deep blueprint navy — hero / footer bg */
  --ink-deep: #081A2E;     /* darker navy — console bg */
  --paper: #F7F5EF;        /* warm paper — content section bg */
  --paper-dim: #EFEAE0;    /* slightly deeper paper — alt sections */
  --graphite: #1B2026;     /* primary body text on paper */
  --graphite-soft: #5C6672;/* secondary text on paper */
  --line-soft: rgba(14, 42, 71, 0.12);   /* hairlines on paper */
  --grid-line: rgba(178, 205, 230, 0.16);/* blueprint grid on navy */
  --accent: #FF6B4A;       /* coral — CTAs, highlights */
  --accent-deep: #E2532F;
  --mint: #7FD9A6;         /* terminal "good number" green */
  --paper-text-on-ink: #EAF1F8;

  /* ---- type ---- */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Menlo, monospace;

  /* ---- layout ---- */
  --max-width: 1100px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --radius: 4px;
}

/* ---------------------------------------------------------------
   Reset & base
   --------------------------------------------------------------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--graphite);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }

ul { margin: 0; padding: 0; list-style: none; }

a {
  color: inherit;
  text-decoration: none;
}

img { max-width: 100%; display: block; }

.mono { font-family: var(--font-mono); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #11151A;
  padding: 0.6rem 1rem;
  z-index: 999;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------------------------------------------------------------
   Shared section scaffolding
   --------------------------------------------------------------- */
section {
  padding: clamp(3.5rem, 8vw, 6rem) var(--gutter);
}

.section-head {
  max-width: var(--max-width);
  margin: 0 auto 2.75rem;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  margin-top: 0.5rem;
}

.section-intro {
  margin-top: 0.75rem;
  color: var(--graphite-soft);
  max-width: 38ch;
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-deep);
  font-weight: 500;
}

.eyebrow.mono { color: var(--accent-deep); }

/* reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------------------------------------------------------------
   Buttons
   --------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  border: 1.5px solid transparent;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--accent);
  color: #16110D;
}
.btn-primary:hover { background: var(--accent-deep); }

.btn-ghost {
  border-color: rgba(255,255,255,0.45);
  color: var(--paper-text-on-ink);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------------------------------------------------------------
   Nav
   --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(14, 42, 71, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--paper-text-on-ink);
  letter-spacing: 0.02em;
}
.logo-bracket { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--paper-text-on-ink);
  opacity: 0.85;
  transition: opacity 0.15s ease, color 0.15s ease;
}
.nav-links a:hover { opacity: 1; color: var(--accent); }

.nav-resume {
  font-family: var(--font-mono);
  border: 1px solid rgba(255,255,255,0.35);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius);
  opacity: 1 !important;
}
.nav-resume:hover { border-color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  height: 2px;
  width: 100%;
  background: var(--paper-text-on-ink);
  border-radius: 2px;
}

/* ---------------------------------------------------------------
   Hero
   --------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--paper-text-on-ink);
  padding: clamp(5rem, 14vw, 9rem) var(--gutter) clamp(4rem, 9vw, 6rem);
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 48px);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 40%, transparent 85%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
}

.eyebrow.mono {
  font-size: 0.85rem;
}
.hero .eyebrow.mono { color: var(--mint); margin-bottom: 1rem; display: block; }

.hero-name {
  font-size: clamp(2.6rem, 8vw, 5rem);
  margin-bottom: 1.1rem;
}

.hero-meta {
  font-size: 0.85rem;
  color: rgba(234, 241, 248, 0.65);
  margin-bottom: 1.6rem;
}

.hero-tagline {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  max-width: 42ch;
  color: rgba(234, 241, 248, 0.92);
  margin-bottom: 2.4rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.scroll-cue {
  position: absolute;
  left: var(--gutter);
  bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(234, 241, 248, 0.55);
}
.scroll-cue-line {
  width: 1px;
  height: 26px;
  background: rgba(234, 241, 248, 0.4);
}

/* ---------------------------------------------------------------
   Impact / console signature element
   --------------------------------------------------------------- */
.impact { background: var(--paper); }

.console {
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--ink-deep);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 24px 60px -20px rgba(8, 26, 46, 0.45);
}

.console-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot-red { background: #FF6363; }
.dot-yellow { background: #FFCB57; }
.dot-green { background: #5FD777; }

.console-title {
  margin-left: 0.6rem;
  font-size: 0.78rem;
  color: rgba(234,241,248,0.55);
}

.console-body {
  padding: 1.75rem clamp(1.25rem, 4vw, 2.5rem) 2rem;
  color: rgba(234, 241, 248, 0.92);
  font-size: clamp(0.85rem, 1.6vw, 0.98rem);
}

.console-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.45rem 0;
  border-bottom: 1px dashed rgba(255,255,255,0.06);
}
.console-line:last-child { border-bottom: none; }

.console-prompt {
  color: var(--mint);
  opacity: 0.85;
}

.stat-num {
  color: var(--accent);
  font-weight: 600;
  min-width: 3.5ch;
}

.stat-label {
  color: rgba(234, 241, 248, 0.75);
}

.cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--mint);
  vertical-align: text-bottom;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------------------------------------------------------------
   Experience timeline
   --------------------------------------------------------------- */
.experience { background: var(--paper-dim); }

.timeline {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  padding-left: 1.4rem;
  border-left: 2px solid var(--line-soft);
}

.timeline-item {
  position: relative;
  padding: 0 0 2.6rem 1.6rem;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.55rem;
  top: 0.4rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--paper-dim);
  border: 2.5px solid var(--accent);
}

.timeline-date {
  font-size: 0.78rem;
  color: var(--accent-deep);
  margin-bottom: 0.4rem;
}

.timeline-content h3 {
  font-size: 1.15rem;
  margin-bottom: 0.7rem;
}

.timeline-company {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--graphite-soft);
  font-size: 0.95rem;
}

.timeline-content ul {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.timeline-content li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--graphite);
  font-size: 0.97rem;
}
.timeline-content li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--graphite-soft);
}

/* ---------------------------------------------------------------
   Skills
   --------------------------------------------------------------- */
.skills { background: var(--paper); }

.skills-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.25rem 2.5rem;
}

.skill-group h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--graphite-soft);
  margin-bottom: 0.9rem;
  font-weight: 500;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip-list li {
  border: 1px solid var(--line-soft);
  background: #fff;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--graphite);
}

/* ---------------------------------------------------------------
   Awards
   --------------------------------------------------------------- */
.awards { background: var(--paper-dim); }

.awards-list {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.awards-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.awards-list li:first-child { border-top: 1px solid var(--line-soft); }

.award-name { font-weight: 600; }
.award-org { color: var(--graphite-soft); font-size: 0.92rem; }
.award-date { margin-left: auto; font-size: 0.8rem; color: var(--accent-deep); }

/* ---------------------------------------------------------------
   Education
   --------------------------------------------------------------- */
.education { background: var(--paper); }

.education-card {
  max-width: var(--max-width);
  margin: 0 auto;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1.75rem 2rem;
  background: #fff;
}
.education-card h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.education-card p { color: var(--graphite-soft); margin-top: 0.2rem; }
.education-date { color: var(--accent-deep) !important; margin-top: 0.6rem; font-size: 0.82rem; }

/* ---------------------------------------------------------------
   Contact / footer
   --------------------------------------------------------------- */
.contact {
  position: relative;
  background: var(--ink);
  color: var(--paper-text-on-ink);
  padding: 0;
}

.contact-grid {
  position: relative;
  padding: clamp(4rem, 9vw, 6rem) var(--gutter) clamp(3rem, 6vw, 4rem);
  overflow: hidden;
}

.contact-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
}

.contact h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  margin-top: 0.5rem;
  max-width: 22ch;
}

.contact-sub {
  margin-top: 0.9rem;
  color: rgba(234, 241, 248, 0.7);
  max-width: 44ch;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2.5rem;
  margin: 2.25rem 0 2.25rem;
}

.contact-link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  transition: color 0.15s ease;
}
.contact-link:not(.contact-link-static):hover { color: var(--accent); }

.contact-label {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mint);
}

.footer-bottom {
  position: relative;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.25rem var(--gutter);
  text-align: center;
  font-size: 0.82rem;
  color: rgba(234, 241, 248, 0.5);
}

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */
@media (max-width: 760px) {
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    height: calc(100vh - 64px);
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem var(--gutter);
    gap: 1.4rem;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
  }
  .nav-links.is-open { transform: translateX(0); }
  .nav-toggle { display: flex; }

  .skills-grid { grid-template-columns: 1fr; }

  .award-date { margin-left: 0; }
}

@media (max-width: 480px) {
  .hero-name { font-size: 2.2rem; }
}