/*
 * index.css — Portfolio page component styles
 * Portfolio v2.0.0 · itsyashwanth.vercel.app
 *
 * Requires: tokens.css (loaded first via index.html <head>)
 *
 * Sections:
 *   Light-mode component overrides · Reset · Layout
 *   Background Shader · Scroll Progress · Nav · Scroll Indicator
 *   Reveal Animations · Glass Card · Section Headers
 *   Hero · About · Skills · Projects · Certifications
 *   Contact · Footer · Responsive · Motion preferences
 */

[data-theme="light"] #shader-canvas { opacity: 0; pointer-events: none; }
#shader-canvas { transition: opacity 0.45s ease; }

/* Light mode overrides */
[data-theme="light"] nav { background: rgba(250,246,242,0.92); border-color: rgba(181,78,58,0.13); }
[data-theme="light"] .mobile-nav { background: var(--bg); }
[data-theme="light"] .stag { background: var(--surface-2); border-color: var(--border-lo); color: var(--text-2); }
[data-theme="light"] .plink { background: var(--surface-2); border-color: var(--border-lo); color: var(--text-2); }
[data-theme="light"] .field-input { background: var(--surface-lo); border-bottom-color: var(--border); color: var(--text-1); }
[data-theme="light"] .field-input:focus { border-bottom-color: var(--accent); }
[data-theme="light"] .field-select { background: var(--surface-lo); }
[data-theme="light"] .contact-shell { animation: none; box-shadow: 0 0 80px color-mix(in srgb, var(--accent) 10%, transparent); }
[data-theme="light"] .pstep:hover { background: var(--surface-3); }
[data-theme="light"] .btn-ghost { background: rgba(250,246,242,0.85); }
[data-theme="light"] .form-hd { background: var(--surface-3); }
[data-theme="light"] .contact-form-card { background: var(--surface); border-color: var(--border-lo); }

/* =============================================
   RESET + BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: var(--font-body); }

/* =============================================
   LAYOUT
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 4rem);
}

section { padding: var(--section-gap) 0; }

/* =============================================
   BACKGROUND SHADER
   ============================================= */
#shader-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* =============================================
   SCROLL PROGRESS
   ============================================= */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--accent);
  width: 0%;
  z-index: 200;
  transition: width 0.1s linear, background-color 0.5s ease;
}

/* =============================================
   NAV — floating pill
   ============================================= */
nav {
  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  width: min(92%, 1040px);
  background: rgba(34,31,30,0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-lo);
  border-radius: var(--r-full);
  z-index: 100;
  transition: transform 0.5s var(--ease-out), background var(--dur) var(--ease-out);
}

nav.hide { transform: translateX(-50%) translateY(calc(-100% - var(--space-4))); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding: 0 var(--space-5);
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.nav-brand-period { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.01em;
  transition: color var(--dur) var(--ease-out);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.btn-theme {
  width: 36px;
  height: 36px;
  border-radius: var(--r-full);
  background: var(--surface-2);
  border: 1px solid var(--border-lo);
  color: var(--text-2);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--dur) var(--ease-out);
}

.btn-theme:hover { border-color: var(--accent); }

.btn-contact-nav {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border-radius: var(--r-full);
  background: var(--accent);
  color: var(--color-on-accent);
  border: none;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: box-shadow var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
  display: inline-block;
}

.btn-contact-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px color-mix(in srgb, var(--accent) 35%, transparent);
}

.btn-resume-nav {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border-radius: var(--r-full);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-2);
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: border-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
  display: inline-block;
}

.btn-resume-nav:hover { border-color: var(--accent); color: var(--accent); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: all var(--dur) var(--ease-out);
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: var(--bg);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-2);
  transition: color var(--dur) var(--ease-out);
  min-height: 48px;
  display: flex;
  align-items: center;
}

.mobile-nav a:hover { color: var(--accent); }

.mnav-bottom {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
  width: 100%;
  display: flex;
  justify-content: center;
}

/* =============================================
   SCROLL INDICATOR (right side)
   ============================================= */
.scroll-indicator-wrap {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.scroll-label {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.scroll-line {
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, var(--accent) 50%, transparent 50%);
  background-size: 100% 200%;
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { background-position: 0 100%; }
  100% { background-position: 0 -100%; }
}

/* =============================================
   REVEAL ANIMATIONS
   ============================================= */
.reveal {
  opacity: 0;
  transition: opacity 1.2s var(--ease-out), transform 1.2s var(--ease-out);
}

.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(40px); }
.reveal-right { transform: translateX(-40px); }
.reveal-scale { transform: scale(0.96); }
.reveal.active { opacity: 1; transform: none; }

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-stagger.active > * { opacity: 1; transform: none; }
.reveal-stagger.active > *:nth-child(1) { transition-delay: 0.10s; }
.reveal-stagger.active > *:nth-child(2) { transition-delay: 0.20s; }
.reveal-stagger.active > *:nth-child(3) { transition-delay: 0.30s; }
.reveal-stagger.active > *:nth-child(4) { transition-delay: 0.40s; }
.reveal-stagger.active > *:nth-child(5) { transition-delay: 0.50s; }
.reveal-stagger.active > *:nth-child(6) { transition-delay: 0.60s; }
.reveal-stagger.active > *:nth-child(7) { transition-delay: 0.10s; }
.reveal-stagger.active > *:nth-child(8) { transition-delay: 0.20s; }
.reveal-stagger.active > *:nth-child(9) { transition-delay: 0.30s; }

/* =============================================
   GLASS CARD
   ============================================= */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-b);
  border-radius: var(--r-2xl);
}

/* =============================================
   SECTION HEADER
   ============================================= */
.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-1);
}

.section-sub {
  color: var(--text-2);
  margin-top: var(--space-2);
  max-width: 520px;
  font-size: var(--text-base);
}

.section-hd { margin-bottom: var(--space-6); }

.sect-divider {
  border: none;
  border-top: 1px solid var(--border);
  opacity: 0.4;
}

/* =============================================
   HERO
   ============================================= */
#hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 0.58fr;
  align-items: center;
  gap: clamp(2rem, 4vw, 4rem);
  padding-top: calc(var(--nav-h) + var(--space-6));
  overflow: hidden;
}

.hero-left {
  padding: var(--space-6) 0 var(--space-6) clamp(1.25rem, 5vw, 4rem);
  order: 1;
  min-width: 0;
}

.hero-right {
  padding: 0 clamp(1.25rem, 5vw, 4rem) 0 0;
  order: 2;
  min-width: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--surface-2);
  border: 1px solid var(--glass-b);
  color: var(--text-2);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  padding: 0.35rem 0.9rem;
  border-radius: var(--r-full);
  margin-bottom: var(--space-4);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  animation: blink 2.2s ease-in-out infinite;
}

@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0.3; } }

.hero-name {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-4);
  color: var(--text-1);
}

.hero-name .period { color: var(--accent); }

.hero-tagline {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: var(--space-5);
  font-size: var(--text-lg);
}

.tagline-prefix { color: var(--text-2); }

.tagline-cycle {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
  min-width: 200px;
}

#cycleWord {
  display: inline-block;
  transition: opacity 0.3s ease, transform 0.3s var(--ease-out);
}

#cycleWord.exit { opacity: 0; transform: translateY(-10px); }

.hero-desc {
  color: var(--text-2);
  max-width: 460px;
  line-height: 1.8;
  margin-bottom: var(--space-5);
  font-size: var(--text-base);
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.btn-primary {
  background: var(--accent);
  color: var(--color-on-accent);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: 0.75rem 1.6rem;
  border-radius: var(--r-full);
  border: none;
  cursor: pointer;
  display: inline-block;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px color-mix(in srgb, var(--accent) 38%, transparent);
}

.btn-ghost {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-1);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-sm);
  padding: 0.75rem 1.6rem;
  border-radius: var(--r-full);
  border: 1px solid var(--glass-b);
  cursor: pointer;
  display: inline-block;
  transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-socials {
  display: flex;
  gap: var(--space-4);
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-3);
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}

.social-link:hover { color: var(--accent); border-color: var(--accent); }

/* Status card */
.status-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-b);
  border-radius: var(--r-2xl);
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
  width: 100%;
  box-sizing: border-box;
}

.status-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent 70%);
}

.status-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-lo);
}

.status-header span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-3);
}

.status-rows { display: flex; flex-direction: column; gap: var(--space-3); }

.status-row { display: flex; align-items: flex-start; gap: var(--space-2); }

.sk {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  min-width: 72px;
  flex-shrink: 0;
  padding-top: 2px;
}

.sv { font-size: var(--text-sm); color: var(--text-1); line-height: 1.55; overflow-wrap: break-word; word-break: break-word; min-width: 0; }

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  margin: 0 2px;
}

.badge-accent {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  color: var(--accent);
}

.badge-green {
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: var(--color-success);
}

/* =============================================
   ABOUT
   ============================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: start;
}

.about-text p {
  color: var(--text-2);
  margin-bottom: var(--space-4);
  line-height: 1.8;
}

.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--text-1); font-weight: 600; }
.about-text em { font-style: italic; }

.process-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-b);
  border-radius: var(--r-2xl);
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
}

.process-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-2), transparent 70%);
}

.process-hd {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-3);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-lo);
}

.process-steps { display: flex; flex-direction: column; gap: 4px; }

.pstep {
  display: flex;
  gap: var(--space-3);
  padding: 0.6rem var(--space-3);
  border-radius: var(--r-lg);
  transition: background var(--dur) var(--ease-out);
}

.pstep:hover { background: var(--surface-2); }

.pkey {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  min-width: 96px;
  flex-shrink: 0;
}

.pval { font-size: var(--text-sm); color: var(--text-2); line-height: 1.55; }

/* =============================================
   SKILLS
   ============================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

.skill-group {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-b);
  border-radius: var(--r-2xl);
  padding: var(--space-5);
  transition: border-color var(--dur) var(--ease-out), transform 0.4s var(--ease-out);
}

.skill-group:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  transform: translateY(-3px);
}

.sg-head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-lo);
}

.sg-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--r-lg);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: transform 0.4s var(--ease-out);
}

.skill-group:hover .sg-icon-wrap { transform: scale(1.1); }

.sg-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-1);
}

.skill-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.stag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--border-lo);
  padding: 0.22rem 0.55rem;
  border-radius: 4px;
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}

.stag:hover {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

/* =============================================
   PROJECTS
   ============================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(460px, 1fr));
  gap: var(--space-4);
}

.pcard {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-b);
  border-radius: var(--r-2xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  position: relative;
  overflow: hidden;
  transition: transform 0.5s var(--ease-out), border-color var(--dur) var(--ease-out), box-shadow 0.5s var(--ease-out);
}

.pcard::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent 60%);
  opacity: 0;
  transition: opacity var(--dur) var(--ease-out);
}

.pcard:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.pcard:hover::before { opacity: 1; }

.pcard-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pnum {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  opacity: 0.6;
}

.plinks { display: flex; gap: var(--space-2); }

.plink {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px solid var(--border-lo);
  padding: 0.22rem 0.6rem;
  border-radius: var(--r-sm);
  transition: color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}

.plink:hover { color: var(--accent); border-color: var(--accent); }

.pname {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-1);
}

.pdesc { color: var(--text-2); font-size: var(--text-sm); line-height: 1.8; flex: 1; }

.pstack { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.ptag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  padding: 0.2rem 0.55rem;
  border-radius: var(--r-full);
}

/* =============================================
   CERTIFICATIONS
   ============================================= */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.cert-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-b);
  border-radius: var(--r-xl);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: border-color var(--dur) var(--ease-out), transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.cert-card:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.cert-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--r-full);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: transform 0.4s var(--ease-out);
}

.cert-card:hover .cert-icon-wrap { transform: scale(1.1); }

.cert-info { flex: 1; min-width: 0; }

.cert-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  line-height: 1.35;
  margin-bottom: 0.25rem;
  color: var(--text-1);
}

.cert-meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-3);
  line-height: 1.5;
}

.cert-arrow {
  font-size: 0.8rem;
  color: var(--accent);
  opacity: 0;
  flex-shrink: 0;
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}

.cert-card:hover .cert-arrow { opacity: 1; transform: rotate(45deg); }

.certs-sub {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-2);
  margin-bottom: var(--space-3);
}

/* =============================================
   CONTACT
   ============================================= */
@keyframes pulse-glow {
  0%   { box-shadow: 0 0 0 0   color-mix(in srgb, var(--accent) 25%, transparent); }
  70%  { box-shadow: 0 0 0 24px color-mix(in srgb, var(--accent) 0%,  transparent); }
  100% { box-shadow: 0 0 0 0   color-mix(in srgb, var(--accent) 0%,  transparent); }
}

.contact-shell {
  background: var(--glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-b);
  border-radius: calc(var(--r-2xl) * 1.5);
  padding: clamp(2rem, 5vw, 5rem);
  position: relative;
  overflow: hidden;
  animation: pulse-glow 3.5s infinite;
}

.contact-shell::before {
  content: '';
  position: absolute;
  top: -6rem; right: -6rem;
  width: 24rem;
  height: 24rem;
  background: color-mix(in srgb, var(--accent) 5%, transparent);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-7);
  position: relative;
  z-index: 1;
}

.contact-heading {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-4);
  color: var(--text-1);
}

.contact-heading .accent { color: var(--accent); font-style: italic; }

.contact-desc {
  color: var(--text-2);
  margin-bottom: var(--space-5);
  line-height: 1.75;
}

.contact-list { display: flex; flex-direction: column; gap: var(--space-3); }

.clink {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  transition: color var(--dur) var(--ease-out);
}

.clink:hover { color: var(--accent); }

.clink-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-full);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid var(--glass-b);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}

.clink:hover .clink-icon {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--color-on-accent);
}

.response-note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-2);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: var(--r-lg);
  padding: 0.65rem var(--space-3);
  margin-top: var(--space-4);
}

.response-note strong { color: var(--text-1); }

/* Contact form */
.contact-form-card {
  background: color-mix(in srgb, var(--surface-2) 50%, transparent);
  border: 1px solid var(--border-lo);
  border-radius: var(--r-2xl);
  overflow: hidden;
}

.form-hd {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem var(--space-4);
  background: var(--surface-3);
  border-bottom: 1px solid var(--border-lo);
}

.form-hd-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.form-hd-dot:nth-child(1) { background: var(--color-traffic-red); }
.form-hd-dot:nth-child(2) { background: var(--color-traffic-yellow); }
.form-hd-dot:nth-child(3) { background: var(--color-traffic-green); }

.form-hd-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
  margin-left: var(--space-1);
}

#contactForm {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.field-group { display: flex; flex-direction: column; gap: 0.35rem; }

.field-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.req { color: var(--accent); }

.field-input {
  background: var(--surface-lo);
  border: 0;
  border-bottom: 2px solid var(--border);
  border-radius: var(--r-md) var(--r-md) 0 0;
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: clamp(0.75rem, 1vw, 0.82rem);
  padding: 0.65rem 1rem;
  transition: border-color var(--dur) var(--ease-out);
  width: 100%;
  outline: none;
  -webkit-appearance: none;
}

.field-input::placeholder { color: var(--text-3); opacity: 0.6; }

.field-input:focus { border-color: var(--accent); }

.field-textarea { resize: vertical; min-height: 100px; line-height: 1.65; }

.field-select { cursor: pointer; padding-right: 2rem; }

.select-wrap { position: relative; }

.select-arrow {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  pointer-events: none;
  font-size: 0.75rem;
}

.char-count {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-3);
  text-align: right;
}

.field-err {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-error);
  min-height: 1rem;
  display: block;
}

.form-status {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.6rem 0.9rem;
  border-radius: var(--r-md);
  display: none;
}

.form-status.success {
  display: block;
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: var(--color-success);
}

.form-status.fail {
  display: block;
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
  color: var(--color-error);
}

.btn-submit {
  background: var(--accent);
  color: var(--color-on-accent);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: 0.85rem 1.5rem;
  border-radius: var(--r-full);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
  width: 100%;
  min-height: 48px;
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px color-mix(in srgb, var(--accent) 38%, transparent);
}

.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* =============================================
   CONNECT — CTA CARD (replaces the inline form;
   opens the modal below instead)
   ============================================= */
.connect-cta-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-b);
  border-radius: var(--r-2xl);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  height: 100%;
}

.connect-cta-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--r-lg);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: var(--space-3);
}

.connect-cta-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: var(--space-2);
}

.connect-cta-desc {
  font-size: var(--text-sm);
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

/* =============================================
   CONNECT MODAL
   ----------------------------------------------
   .modal-panel reuses .contact-form-card's visual
   treatment (terminal-style header, card chrome) —
   only position/sizing/animation are modal-specific.
   ============================================= */
body.modal-open { overflow: hidden; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal[hidden] { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  animation: modalBackdropIn 0.25s var(--ease-out);
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: min(480px, 100%);
  max-height: min(640px, 90vh);
  overflow-y: auto;
  animation: modalPanelIn 0.3s var(--ease-out);
}

@keyframes modalBackdropIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes modalPanelIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to   { opacity: 1; transform: none; }
}

.modal-close {
  margin-left: auto;
  width: 24px;
  height: 24px;
  border-radius: var(--r-sm);
  border: none;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: color var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}

.modal-close:hover { color: var(--accent); background: var(--surface-2); }

/* =============================================
   FOOTER
   ============================================= */
footer {
  border-top: 1px solid var(--border-lo);
  padding: var(--space-5) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

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

.footer-text .accent { color: var(--accent); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 900px) {
  .nav-links, .nav-desktop-only { display: none; }
  .hamburger { display: flex; }

  #hero {
    grid-template-columns: 1fr;
    padding-top: calc(var(--nav-h) + var(--space-6));
    min-height: auto;
    padding-bottom: var(--space-7);
    gap: var(--space-5);
    overflow: hidden;
  }

  /* Hero: title/CTA first, status card second on smaller screens */
  .hero-left  { padding: 0 1.5rem; order: 1; }
  .hero-right { padding: 0 1.5rem; order: 2; }

  .status-rows { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .about-grid { grid-template-columns: 1fr; gap: var(--space-5); }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .scroll-indicator-wrap { display: none; }
}

/* Project card stagger — second card enters slightly delayed */
.projects-grid .pcard:nth-child(2) { transition-delay: 0.15s; }

@media (max-width: 600px) {
  section { padding: var(--space-6) 0; }
  .section-hd { margin-bottom: var(--space-4); }
  .hero-name { font-size: clamp(1.9rem, 9.5vw, 3.2rem); overflow-wrap: break-word; }
  .hero-tagline { flex-wrap: wrap; gap: 0.3rem; }
  .tagline-cycle { min-width: 150px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { text-align: center; min-height: 48px; }
  .hero-socials { flex-wrap: wrap; }
  .status-rows { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .section-title { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  .contact-shell { padding: var(--space-4); }
}

@media (max-width: 380px) {
  :root { --nav-h: 60px; }
  .hero-name { font-size: clamp(1.7rem, 8.5vw, 2.2rem); }
}

@media (hover: none) {
  .nav-links a, .social-link, .plink, .cert-card, .clink,
  .btn-theme, .btn-resume-nav, .btn-contact-nav { min-height: 44px; display: inline-flex; align-items: center; }
  .cert-card { min-height: 64px; }
  .hamburger { min-height: 44px; min-width: 44px; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms; transition-duration: 0.01ms; }
}
