/* ============================================================
   PORTFOLIO — style.css  (Enhanced Production Build)
   Aesthetic: Editorial / Refined Ink
   Fonts: DM Serif Display + DM Sans
   Themes: Dark (default) + Light (via [data-theme="light"])
============================================================ */

/* ── CSS Variables — Dark Theme (default) ── */
:root {
  --clr-bg:           #00272C;
  --clr-bg-alt:       #003B42;
  --clr-ink:          #F0FFF4;
  --clr-ink-muted:    #7AADA8;
  --clr-ink-faint:    #3A7A78;
  --clr-accent:       #E1FF51;
  --clr-accent-dk:    #C8E832;
  --clr-accent-glow:  rgba(225, 255, 81, 0.2);
  --clr-white:        #FFFFFF;
  --clr-card:         #00444C;
  --clr-card-hover:   #005058;
  --clr-border:       #1A4F56;
  --clr-border-light: rgba(26, 79, 86, 0.6);
  --clr-success:      #4caf7d;
  --clr-error:        #e06060;

  --ff-display: 'DM Serif Display', Georgia, serif;
  --ff-body:    'DM Sans', system-ui, sans-serif;

  --gap:    1.5rem;
  --gap-xl: 3rem;

  --radius:    0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;

  --ease:       0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring:0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-slow:  0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  --shadow-sm:  0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md:  0 6px 20px rgba(0, 0, 0, 0.25);
  --shadow-lg:  0 16px 48px rgba(0, 0, 0, 0.35);
  --shadow-accent: 0 8px 24px rgba(225, 255, 81, 0.25);

  --max-w: 1160px;
  --nav-h: 68px;
}

/* ── Light Theme Override ── */
[data-theme="light"] {
  --clr-bg:           #F4F7FA;
  --clr-bg-alt:       #E8EFF6;
  --clr-ink:          #1A2B3C;
  --clr-ink-muted:    #4A6278;
  --clr-ink-faint:    #8AA4BB;
  --clr-accent:       #2E70BB;
  --clr-accent-dk:    #1A5296;
  --clr-accent-glow:  rgba(46, 112, 187, 0.15);
  --clr-card:         #FFFFFF;
  --clr-card-hover:   #F0F6FF;
  --clr-border:       #C8D8E8;
  --clr-border-light: rgba(200, 216, 232, 0.8);
  --shadow-sm:  0 2px 8px rgba(0, 0, 0, 0.07);
  --shadow-md:  0 6px 20px rgba(0, 0, 0, 0.09);
  --shadow-lg:  0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-accent: 0 8px 24px rgba(46, 112, 187, 0.2);
}

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

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--ff-body);
  background: var(--clr-bg);
  color: var(--clr-ink);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background-color var(--ease-slow), color var(--ease-slow);
}

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

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--ff-display);
  line-height: 1.2;
  color: var(--clr-ink);
}

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

/* ── Container ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 1.5rem);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.75rem 1.75rem;
  border-radius: 2rem;
  font-family: var(--ff-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease),
              transform var(--ease-spring), box-shadow var(--ease);
  border: 2px solid transparent;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  transition: background var(--ease);
  border-radius: inherit;
}
.btn:hover::after { background: rgba(255, 255, 255, 0.06); }
.btn:active { transform: scale(0.97) !important; }

.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-white);
  box-shadow: 0 4px 12px var(--clr-accent-glow);
}
.btn-primary:hover {
  background: var(--clr-accent-dk);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
}

.btn-outline {
  background: transparent;
  border-color: var(--clr-border);
  color: var(--clr-ink);
}
.btn-outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.btn-full { width: 100%; }


/* ============================================================
   NAVIGATION
============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--ease-slow), box-shadow var(--ease-slow), backdrop-filter var(--ease-slow);
}
.navbar.scrolled {
  background: rgba(15, 25, 35, 0.94);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: 0 1px 0 var(--clr-border-light);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(244, 247, 250, 0.94);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 1.5rem);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(45deg, var(--clr-ink), var(--clr-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-logo:hover {
  filter: brightness(1.15);
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  flex: 1;
  justify-content: center;
}
.nav-link {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--clr-ink-muted);
  padding: 0.4rem 0.8rem;
  border-radius: 1.5rem;
  transition: color var(--ease), background var(--ease);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0.2rem; left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 14px; height: 2px;
  background: var(--clr-accent);
  border-radius: 2px;
  transition: transform var(--ease);
}
.nav-link:hover { color: var(--clr-ink); }
.nav-link:hover::after,
.nav-link.active::after { transform: translateX(-50%) scaleX(1); }
.nav-link.active { color: var(--clr-ink); }

/* Nav actions (theme toggle + hamburger) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* Theme toggle */
.theme-toggle {
  width: 2.2rem; height: 2.2rem;
  border-radius: 50%;
  background: var(--clr-card);
  border: 1.5px solid var(--clr-border);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--clr-ink-muted);
  transition: all var(--ease);
  position: relative;
  overflow: hidden;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}
.theme-toggle:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: rotate(20deg) scale(1.1);
}
.theme-toggle:focus-visible {
  outline: none;
}

.theme-icon {
  position: absolute;
  display: flex; align-items: center; justify-content: center;
  transition: opacity var(--ease), transform var(--ease);
}
.theme-icon--sun { opacity: 0; transform: rotate(-90deg) scale(0.6); }
.theme-icon--moon { opacity: 1; transform: rotate(0deg) scale(1); }

[data-theme="light"] .theme-icon--sun { opacity: 1; transform: rotate(0deg) scale(1); }
[data-theme="light"] .theme-icon--moon { opacity: 0; transform: rotate(90deg) scale(0.6); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: var(--clr-card);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0.45rem 0.5rem;
  width: 2.4rem; height: 2.4rem;
  transition: all var(--ease);
  z-index: 1002;
  position: relative;
}
.nav-toggle:hover { border-color: var(--clr-accent); }

.burger-line {
  display: block;
  width: 18px; height: 2px;
  background: var(--clr-ink);
  border-radius: 2px;
  transition: transform var(--ease), opacity var(--ease), width var(--ease);
  transform-origin: center;
}
.nav-toggle.open .burger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open .burger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open .burger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Overlay behind mobile menu */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--ease-slow);
}
.nav-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}


/* ============================================================
   HERO SECTION
============================================================ */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-h) + 3rem) clamp(1rem, 4vw, 1.5rem) 5rem;
}

.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}
.shape-1 {
  width: clamp(280px, 50vw, 560px);
  height: clamp(280px, 50vw, 560px);
  background: radial-gradient(circle, #1E4A7A 0%, transparent 70%);
  top: -15%; right: -8%;
  opacity: 0.6;
  animation: floatA 14s ease-in-out infinite;
}
.shape-2 {
  width: clamp(200px, 35vw, 380px);
  height: clamp(200px, 35vw, 380px);
  background: radial-gradient(circle, #253D52 0%, transparent 70%);
  bottom: 5%; left: -6%;
  opacity: 0.55;
  animation: floatB 18s ease-in-out infinite;
}
.shape-3 {
  width: clamp(120px, 20vw, 220px);
  height: clamp(120px, 20vw, 220px);
  background: radial-gradient(circle, #4A90D9 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.18;
  animation: floatA 22s ease-in-out infinite reverse;
}

@keyframes floatA {
  0%, 100% { transform: translate(0, 0); }
  33%       { transform: translate(20px, -25px); }
  66%       { transform: translate(-10px, 15px); }
}
@keyframes floatB {
  0%, 100% { transform: translate(0, 0); }
  33%       { transform: translate(-18px, 20px); }
  66%       { transform: translate(12px, -10px); }
}

.hero-inner {
  position: relative;
  max-width: var(--max-w);
  width: 100%;
  display: flex;
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  justify-content: space-between;
}

.hero-text {
  flex: 1;
  min-width: 0;
  animation: fadeUp 0.9s var(--ease) both;
}

.hero-greeting {
  font-size: 0.9rem;
  color: var(--clr-accent);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.hero-greeting::before {
  content: '';
  display: inline-block;
  width: 24px; height: 2px;
  background: var(--clr-accent);
  border-radius: 2px;
}

.hero-name {
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 1.05;
  margin-bottom: 0.6rem;
  background: linear-gradient(135deg, var(--clr-ink) 0%, var(--clr-ink-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--clr-accent);
  font-family: var(--ff-display);
  font-style: italic;
  margin-bottom: 0.6rem;
}

.hero-tagline {
  font-size: clamp(0.88rem, 1.8vw, 1rem);
  color: var(--clr-ink-muted);
  max-width: 500px;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.chip {
  padding: 0.3rem 0.85rem;
  background: var(--clr-accent-glow);
  border: 1px solid rgba(74, 144, 217, 0.35);
  border-radius: 2rem;
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--clr-accent);
  letter-spacing: 0.02em;
  transition: all var(--ease);
}
.chip:hover {
  background: rgba(74, 144, 217, 0.2);
  transform: translateY(-2px);
}

.hero-cta {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
}

.hero-socials {
  display: flex;
  gap: 0.65rem;
}
.social-link {
  width: 2.4rem; height: 2.4rem;
  border: 1.5px solid var(--clr-border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--clr-ink-muted);
  transition: all var(--ease-spring);
}
.social-link:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-4px) scale(1.1);
  box-shadow: var(--shadow-accent);
  background: var(--clr-accent-glow);
}

/* Photo */
.hero-photo-wrap {
  position: relative;
  flex-shrink: 0;
  animation: fadeUp 0.9s 0.2s var(--ease) both;
}

.hero-photo-frame {
  width: clamp(240px, 28vw, 340px);
  height: clamp(280px, 34vw, 400px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 3px solid var(--clr-border);
  background: var(--clr-bg-alt);
  box-shadow: 16px 16px 0px var(--clr-accent), var(--shadow-lg);
  transition: box-shadow var(--ease), transform var(--ease);
}
.hero-photo-frame:hover {
  transform: translateY(-4px);
  box-shadow: 20px 20px 0px var(--clr-accent-dk), var(--shadow-lg);
}

.photo-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0.6rem;
  color: var(--clr-ink-muted);
  font-size: 0.82rem;
  background: linear-gradient(145deg, var(--clr-bg-alt), var(--clr-card));
}
.photo-icon { font-size: 3.5rem; }

.hero-badge,
.hero-badge-2 {
  position: absolute;
  background: var(--clr-card);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.7rem 1rem;
  display: flex; flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(8px);
  transition: transform var(--ease-spring);
}
.hero-badge:hover,
.hero-badge-2:hover { transform: scale(1.06); }

.hero-badge {
  bottom: -1rem;
  left: -1.5rem;
}
.hero-badge-2 {
  top: 1.5rem;
  right: -1.5rem;
}

.hero-badge strong,
.hero-badge-2 strong {
  font-size: 1.45rem;
  font-family: var(--ff-display);
  color: var(--clr-accent);
  line-height: 1;
}
.hero-badge span,
.hero-badge-2 span {
  font-size: 0.65rem;
  color: var(--clr-ink-muted);
  text-align: center;
  margin-top: 0.15rem;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity var(--ease);
}
.scroll-indicator:hover { opacity: 1; }

.scroll-line {
  width: 1.5px; height: 24px;
  background: linear-gradient(to bottom, transparent, var(--clr-accent));
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
}
.scroll-dot {
  width: 7px; height: 7px;
  background: var(--clr-accent);
  border-radius: 50%;
  animation: scrollPulse 2s 0.3s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: translateY(0); }
  50%       { opacity: 0.3; transform: translateY(4px); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ============================================================
   SECTION SHARED STYLES
============================================================ */
.section     { padding: clamp(4rem, 8vw, 6rem) 0; }
.section-alt { background: var(--clr-bg-alt); }

.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.section-label {
  display: inline-block;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin-bottom: 0.75rem;
}

.section-sub {
  font-size: 1rem;
  color: var(--clr-ink-muted);
  max-width: 520px;
  margin: 0 auto 1.25rem;
  line-height: 1.7;
}

.section-line {
  width: 48px; height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-dk));
  border-radius: 2px;
  margin: 0.75rem auto 0;
}


/* ============================================================
   ABOUT SECTION
============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}

.about-intro {
  font-family: var(--ff-display);
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  color: var(--clr-ink);
}

.about-text p {
  color: var(--clr-ink-muted);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.about-highlights {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.highlight-card {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1.1rem;
  background: var(--clr-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  transition: transform var(--ease-spring), box-shadow var(--ease), border-color var(--ease);
}
.highlight-card:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent);
}
.highlight-icon {
  font-size: 1.55rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 0.1rem;
}
.highlight-card strong {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 0.3rem;
  font-family: var(--ff-body);
  font-weight: 600;
}
.highlight-card p { font-size: 0.78rem; color: var(--clr-ink-muted); margin: 0; line-height: 1.5; }

/* Stats */
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.stat-box {
  background: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.35rem 1rem;
  text-align: center;
  transition: transform var(--ease-spring), box-shadow var(--ease), border-color var(--ease);
  position: relative;
  overflow: hidden;
}
.stat-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--clr-accent-glow), transparent 60%);
  opacity: 0;
  transition: opacity var(--ease);
}
.stat-box:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent);
}
.stat-box:hover::before { opacity: 1; }

.stat-num {
  display: block;
  font-family: var(--ff-display);
  font-size: 2.2rem;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: 0.3rem;
  position: relative;
}
.stat-box span {
  font-size: 0.74rem;
  color: var(--clr-ink-muted);
  line-height: 1.4;
  position: relative;
}

.about-cv-btn {
  grid-column: 1 / -1;
  margin-top: 0.25rem;
}


/* ============================================================
   SKILLS SECTION
============================================================ */
.skills-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.skills-category {
  font-size: 0.95rem;
  font-family: var(--ff-body);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 1.35rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--clr-border);
  color: var(--clr-ink);
}

.skill-item { margin-bottom: 1.3rem; }
.skill-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.86rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--clr-ink);
}
.skill-pct {
  color: var(--clr-accent);
  font-weight: 600;
  font-size: 0.8rem;
}

.skill-bar {
  height: 7px;
  background: var(--clr-border);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}
.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-dk));
  border-radius: 4px;
  width: 0;
  transition: width 1.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}
.skill-fill::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 6px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.9rem;
  background: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: 2rem;
  font-size: 0.78rem;
  color: var(--clr-ink);
  transition: all var(--ease-spring);
  cursor: default;
}
.tag:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px) scale(1.03);
  background: var(--clr-accent-glow);
}

.tag-tool {
  background: var(--clr-ink);
  color: var(--clr-bg);
  border-color: var(--clr-ink);
  font-weight: 500;
}
.tag-tool:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: var(--clr-white);
}

.skills-note {
  margin-top: 2rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  background: var(--clr-accent-glow);
  border: 1px solid rgba(74, 144, 217, 0.25);
  border-radius: var(--radius-md);
  font-size: 0.78rem;
  color: var(--clr-ink-muted);
  line-height: 1.5;
}
.skills-note svg { flex-shrink: 0; margin-top: 1px; color: var(--clr-accent); }


/* ============================================================
   EXPERIENCE TIMELINE
============================================================ */
.timeline {
  position: relative;
  padding-left: 2.5rem;
  max-width: 780px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-accent), var(--clr-border), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.25rem;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -2.76rem;
  top: 1.4rem;
  width: 14px; height: 14px;
  background: var(--clr-accent);
  border: 3px solid var(--clr-bg);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
  transition: transform var(--ease-spring), box-shadow var(--ease);
}
.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 5px var(--clr-accent-glow);
}

.timeline-card {
  background: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.timeline-card:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-border);
}
.timeline-card:hover { border-left: 3px solid var(--clr-accent); padding-left: calc(1.75rem - 2px); }

.tl-header { margin-bottom: 1rem; }
.tl-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}
.tl-header h3 {
  font-size: 1.05rem;
  font-family: var(--ff-body);
  font-weight: 600;
  color: var(--clr-ink);
}
.tl-badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 1rem;
  flex-shrink: 0;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.tl-badge--current {
  background: rgba(76, 175, 125, 0.15);
  border: 1px solid rgba(76, 175, 125, 0.4);
  color: var(--clr-success);
}

.tl-company {
  font-size: 0.84rem;
  color: var(--clr-accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.25rem;
}
.tl-date {
  font-size: 0.76rem;
  color: var(--clr-ink-faint);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.tl-achievements {
  padding-left: 1.1rem;
  margin-bottom: 1.1rem;
}
.tl-achievements li {
  font-size: 0.86rem;
  color: var(--clr-ink-muted);
  margin-bottom: 0.4rem;
  list-style: disc;
  line-height: 1.55;
}
.tl-achievements li::marker { color: var(--clr-accent); }

.tl-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tl-tags span {
  padding: 0.22rem 0.7rem;
  background: var(--clr-bg-alt);
  border: 1px solid var(--clr-border);
  border-radius: 1rem;
  font-size: 0.72rem;
  color: var(--clr-ink-muted);
  transition: all var(--ease);
}
.tl-tags span:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}


/* ============================================================
   EDUCATION & CERTS
============================================================ */
.edu-certs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.edu-col-title {
  font-size: 1rem;
  font-family: var(--ff-body);
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--clr-accent);
  display: inline-block;
  color: var(--clr-ink);
}

.edu-card, .cert-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 0.85rem;
  transition: transform var(--ease-spring), box-shadow var(--ease), border-color var(--ease);
}
.edu-card:hover, .cert-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-accent);
}

.edu-logo, .cert-badge {
  font-size: 1.75rem;
  flex-shrink: 0;
  width: 2.8rem; height: 2.8rem;
  background: var(--clr-bg-alt);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.edu-card h4, .cert-card h4 {
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
  font-family: var(--ff-body);
  font-weight: 600;
  color: var(--clr-ink);
}
.edu-inst, .cert-issuer {
  font-size: 0.8rem;
  color: var(--clr-accent);
  font-weight: 500;
}
.edu-dates, .cert-year {
  font-size: 0.76rem;
  color: var(--clr-ink-muted);
  margin-top: 0.25rem;
}
.cert-year a {
  color: var(--clr-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--ease);
}
.cert-year a:hover { text-decoration-color: var(--clr-accent); }
.edu-note {
  font-size: 0.76rem;
  color: var(--clr-ink-muted);
  margin-top: 0.3rem;
  line-height: 1.5;
}


/* ============================================================
   CONTACT SECTION
============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--ease);
}
.contact-detail:hover {
  background: var(--clr-card);
  border-color: var(--clr-border);
}

.cd-icon {
  width: 2.4rem; height: 2.4rem;
  background: var(--clr-accent-glow);
  border: 1px solid rgba(74, 144, 217, 0.3);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--clr-accent);
  transition: all var(--ease);
}
.contact-detail:hover .cd-icon {
  background: var(--clr-accent);
  color: var(--clr-white);
}
.contact-detail strong {
  display: block;
  font-size: 0.82rem;
  margin-bottom: 0.2rem;
  font-weight: 600;
}
.contact-detail span,
.contact-detail a {
  font-size: 0.86rem;
  color: var(--clr-ink-muted);
}
.contact-detail a:hover { color: var(--clr-accent); }

.contact-socials {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.1rem;
  border: 1.5px solid var(--clr-border);
  border-radius: 2rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--clr-ink-muted);
  transition: all var(--ease-spring);
}
.social-btn:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
  background: var(--clr-accent-glow);
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  background: var(--clr-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
}

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

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-ink);
  letter-spacing: 0.02em;
}
.form-group label span { color: var(--clr-accent); }

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--clr-bg-alt);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  font-family: var(--ff-body);
  font-size: 0.88rem;
  color: var(--clr-ink);
  transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
  resize: vertical;
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--clr-ink-faint); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--clr-accent);
  background: var(--clr-bg);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}
.form-group textarea { min-height: 140px; }

.form-note {
  font-size: 0.8rem;
  margin-top: 0.1rem;
  min-height: 1.2em;
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius);
  transition: all var(--ease);
}
.form-note:empty { padding: 0; }
.form-note.success {
  background: rgba(76, 175, 125, 0.1);
  border: 1px solid rgba(76, 175, 125, 0.3);
  color: var(--clr-success);
}
.form-note.error {
  background: rgba(224, 96, 96, 0.1);
  border: 1px solid rgba(224, 96, 96, 0.3);
  color: var(--clr-error);
}


/* ============================================================
   FOOTER
============================================================ */
.footer {
  background: #080F17;
  color: rgba(214, 223, 232, 0.65);
  padding: 3rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(74, 144, 217, 0.1);
}

.footer-name {
  font-family: var(--ff-display);
  font-size: 1.25rem;
  color: var(--clr-white);
  margin-bottom: 0.2rem;
}
.footer-tagline {
  font-size: 0.78rem;
  color: var(--clr-ink-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.8rem;
}
.footer-links a {
  color: rgba(214, 223, 232, 0.45);
  transition: color var(--ease);
}
.footer-links a:hover { color: var(--clr-accent); }

.footer-socials { display: flex; gap: 1rem; font-size: 0.8rem; }
.footer-socials a { color: rgba(214, 223, 232, 0.45); transition: color var(--ease); }
.footer-socials a:hover { color: var(--clr-accent); }

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  font-size: 0.75rem;
  color: rgba(214, 223, 232, 0.25);
}


/* ============================================================
   SCROLL-REVEAL UTILITY (applied by JS)
============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ============================================================
   RESPONSIVE — TABLET  (≤ 960px)
============================================================ */
@media (max-width: 960px) {
  .hero-inner         { flex-direction: column; text-align: center; gap: 3rem; }
  .hero-text          { order: 2; }
  .hero-photo-wrap    { order: 1; }
  .hero-cta           { justify-content: center; }
  .hero-socials       { justify-content: center; }
  .hero-chips         { justify-content: center; }
  .hero-tagline       { margin: 0 auto 1.5rem; }
  .hero-greeting      { justify-content: center; }
  .hero-badge         { left: 0; }
  .hero-badge-2       { right: 0; }

  .about-grid         { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-stats        { max-width: 480px; }

  .skills-layout      { grid-template-columns: 1fr; gap: 2.5rem; }

  .edu-certs-grid     { grid-template-columns: 1fr; gap: 2.5rem; }

  .contact-layout     { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-info       { max-width: 480px; }

  .footer-inner       { flex-direction: column; text-align: center; }
  .footer-links       { justify-content: center; }
  .footer-socials     { justify-content: center; }
}


/* ============================================================
   RESPONSIVE — MOBILE  (≤ 600px)
============================================================ */
@media (max-width: 600px) {
  :root { --nav-h: 60px; }

  /* Mobile nav — full-screen slide-in from right */
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    width: min(80vw, 300px);
    height: 100dvh;
    background: var(--clr-card);
    border-left: 1px solid var(--clr-border);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.25rem;
    padding: 2rem 2rem 2rem 2.5rem;
    z-index: 1000;
    transform: translateX(110%);
    transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.35);
    overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }

  .nav-link {
    font-size: 1.1rem;
    font-weight: 500;
    padding: 0.6rem 0;
    width: 100%;
    border-radius: 0;
    color: var(--clr-ink);
    border-bottom: 1px solid var(--clr-border-light);
  }
  .nav-link:last-child { border-bottom: none; }
  .nav-link::after { display: none; }
  .nav-link.active { color: var(--clr-accent); }

  .nav-overlay { display: block; }
  .nav-toggle  { display: flex; }

  .about-highlights { grid-template-columns: 1fr; }
  .form-row         { grid-template-columns: 1fr; }
  .contact-form     { padding: 1.5rem 1.25rem; }

  .hero-photo-frame  { width: 220px; height: 260px; }
  .hero-badge-2      { display: none; }

  .hero-cta          { flex-direction: column; align-items: center; }
  .hero-cta .btn     { width: 100%; max-width: 260px; }

  .timeline { padding-left: 1.75rem; }
  .timeline-dot { left: -2.05rem; }
}

/* ============================================================
   RESPONSIVE — SMALL MOBILE  (≤ 380px)
============================================================ */
@media (max-width: 380px) {
  .hero-name { font-size: 2.2rem; }
  .section-title { font-size: 1.7rem; }
  .about-stats { grid-template-columns: 1fr; }
}

/* ============================================================
   PROJECTS SECTION
============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 1rem;
}

.project-card {
  background: var(--clr-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-accent);
}

.project-img {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--clr-bg-alt);
}

.project-img .img-placeholder {
  width: 100%;
  height: 100%;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--ease-slow);
}

.project-card:hover .project-img img {
  transform: scale(1.05);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--ease);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.85rem;
  border-radius: var(--radius);
  background: var(--clr-accent);
  color: #000;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background var(--ease), transform var(--ease);
}

.btn-sm:hover {
  background: var(--clr-accent-dk);
  transform: scale(1.05);
}

.project-info {
  padding: 1.4rem 1.5rem 1.6rem;
}

.project-title {
  font-family: var(--ff-display);
  font-size: 1.15rem;
  color: var(--clr-ink);
  margin-bottom: 0.6rem;
}

.project-desc {
  font-size: 0.88rem;
  color: var(--clr-ink-muted);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--clr-bg);
  color: var(--clr-accent);
  border: 1px solid var(--clr-border);
  letter-spacing: 0.02em;
}

@media (max-width: 640px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}