/* ============================================================
   GLOBAL DESIGN SYSTEM
   IT Portfolio — White / Blue / Red / Black palette
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Custom Properties ───────────────────────────────── */
:root {
  /* Palette */
  --clr-blue:       #1a56db;
  --clr-blue-dark:  #1041b2;
  --clr-blue-light: #e8f0fe;
  --clr-red:        #e02424;
  --clr-red-dark:   #b91c1c;
  --clr-white:      #ffffff;
  --clr-off-white:  #f8fafc;
  --clr-black:      #0f172a;
  --clr-gray-1:     #1e293b;
  --clr-gray-2:     #334155;
  --clr-gray-3:     #64748b;
  --clr-gray-4:     #94a3b8;
  --clr-gray-5:     #cbd5e1;
  --clr-gray-6:     #e2e8f0;
  --clr-gray-7:     #f1f5f9;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Spacing scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border radius */
  --radius-sm:  0.375rem;
  --radius-md:  0.625rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.1);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.12);
  --shadow-blue: 0 4px 20px rgba(26,86,219,.25);
  --shadow-red:  0 4px 20px rgba(224,36,36,.25);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-med:  0.3s ease;
  --transition-slow: 0.5s ease;

  /* Layout */
  --container-max: 1200px;
  --nav-height:    70px;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::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(--font-sans);
  color: var(--clr-black);
  background: var(--clr-white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

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

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-black);
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p  { font-size: 1rem; color: var(--clr-gray-2); }

/* ── Layout Utilities ────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section-sm {
  padding: var(--space-16) 0;
}

.flex   { display: flex; }
.grid   { display: grid; }
.hidden { display: none; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--clr-blue);
  color: var(--clr-white);
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
  background: var(--clr-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(26,86,219,.35);
}

.btn-secondary {
  background: transparent;
  color: var(--clr-blue);
  border: 2px solid var(--clr-blue);
}
.btn-secondary:hover {
  background: var(--clr-blue);
  color: var(--clr-white);
  transform: translateY(-2px);
}

.btn-red {
  background: var(--clr-red);
  color: var(--clr-white);
  box-shadow: var(--shadow-red);
}
.btn-red:hover {
  background: var(--clr-red-dark);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

/* ── Badges / Tags ───────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-blue  { background: var(--clr-blue-light); color: var(--clr-blue-dark); }
.badge-red   { background: #fef2f2; color: var(--clr-red-dark); }
.badge-gray  { background: var(--clr-gray-6); color: var(--clr-gray-2); }

/* ── Section headings ────────────────────────────────────── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-blue);
  margin-bottom: var(--space-3);
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 3px;
  background: var(--clr-blue);
  border-radius: var(--radius-full);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--clr-gray-3);
  max-width: 600px;
  margin-bottom: var(--space-12);
}

/* ── Card Base ───────────────────────────────────────────── */
.card {
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-6);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-med);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--clr-blue);
}

/* ── Divider ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--clr-gray-6);
  margin: var(--space-16) 0;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-gray-6);
  transition: box-shadow var(--transition-fast);
}
#navbar.scrolled {
  box-shadow: var(--shadow-md);
}
.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--clr-black);
}
.nav-brand .brand-dot {
  width: 10px; height: 10px;
  border-radius: var(--radius-full);
  background: var(--clr-red);
  display: inline-block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-gray-2);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition-fast);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--clr-blue);
  border-radius: var(--radius-full);
  transition: width var(--transition-med);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-blue);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--clr-black);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--clr-black);
  color: var(--clr-gray-4);
  padding: var(--space-16) 0 var(--space-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--clr-gray-4);
  margin-top: var(--space-3);
  line-height: 1.7;
}
.footer-heading {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: var(--space-5);
}
.footer-links li + li { margin-top: var(--space-3); }
.footer-links a {
  font-size: 0.9rem;
  color: var(--clr-gray-4);
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--clr-blue); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.85rem;
}
.footer-social {
  display: flex;
  gap: var(--space-4);
}
.footer-social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.07);
  color: var(--clr-gray-4);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}
.footer-social a:hover {
  background: var(--clr-blue);
  color: var(--clr-white);
}
.footer-brand-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--clr-white);
}

/* ============================================================
   PAGE WRAPPER (accounts for fixed nav)
   ============================================================ */
.page-wrapper {
  padding-top: var(--nav-height);
}

/* ============================================================
   HERO (index.html)
   ============================================================ */
.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--clr-white) 0%, var(--clr-blue-light) 60%, #dbeafe 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(26,86,219,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 400px; height: 400px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(224,36,36,.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-20) 0;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--clr-blue-light);
  color: var(--clr-blue-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}
.hero-eyebrow::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--clr-blue);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(1.4); }
}
.hero-title { margin-bottom: var(--space-5); }
.hero-title .highlight {
  color: var(--clr-blue);
  position: relative;
  display: inline-block;
}
.hero-title .highlight-red { color: var(--clr-red); }
.hero-desc {
  font-size: 1.1rem;
  color: var(--clr-gray-2);
  margin-bottom: var(--space-8);
  line-height: 1.75;
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-10);
}
.hero-stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--clr-black);
}
.hero-stat-label {
  font-size: 0.8rem;
  color: var(--clr-gray-3);
  font-weight: 500;
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-card-stack {
  position: relative;
  width: 320px;
  height: 320px;
}
/* Floating terminal card */
.terminal-card {
  background: var(--clr-gray-1);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-lg);
  width: 290px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  position: absolute;
  top: 0; left: 0;
  animation: float-card 4s ease-in-out infinite;
}
.terminal-card.card-back {
  background: var(--clr-blue-dark);
  top: 24px; left: 24px;
  z-index: -1;
  opacity: 0.6;
  animation-delay: 0.3s;
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.dot { width: 10px; height: 10px; border-radius: var(--radius-full); }
.dot-red   { background: #ff5f57; }
.dot-yellow{ background: #febc2e; }
.dot-green { background: #28c840; }
.terminal-body .line { color: #94a3b8; margin-bottom: var(--space-2); }
.terminal-body .line .cmd  { color: #7dd3fc; }
.terminal-body .line .out  { color: #86efac; }
.terminal-body .line .err  { color: #fca5a5; }
.terminal-body .line .prompt { color: #34d399; font-weight: 700; }
.cursor {
  display: inline-block;
  width: 8px; height: 14px;
  background: #34d399;
  vertical-align: middle;
  animation: blink 1.2s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
@keyframes float-card {
  0%,100% { transform: translateY(0)   rotate(0deg); }
  50%      { transform: translateY(-8px) rotate(1deg); }
}

/* Badge row in hero */
.skills-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

/* ============================================================
   ABOUT SECTION (index.html)
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.about-img-wrapper {
  position: relative;
}
.about-img-bg {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--clr-blue) 0%, var(--clr-blue-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  box-shadow: var(--shadow-blue);
}
.info-chip {
  position: absolute;
  background: var(--clr-white);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  box-shadow: var(--shadow-md);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.info-chip.chip-tl { top: -16px; left: -16px; color: var(--clr-blue); }
.info-chip.chip-br { bottom: -16px; right: -16px; color: var(--clr-red); }

.about-list { margin: var(--space-6) 0; }
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 0.95rem;
  color: var(--clr-gray-2);
}
.about-list .icon {
  width: 28px; height: 28px; flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--clr-blue-light);
  color: var(--clr-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  margin-top: 1px;
}

/* ============================================================
   SKILLS PAGE
   ============================================================ */
.skills-hero {
  padding: var(--space-20) 0 var(--space-12);
  background: linear-gradient(135deg, #f8fafc 0%, var(--clr-blue-light) 100%);
  text-align: center;
}
.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}
.skill-category-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-6);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-med);
  box-shadow: var(--shadow-sm);
}
.skill-category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.skill-cat-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-5);
}
.skill-cat-icon.blue { background: var(--clr-blue-light); }
.skill-cat-icon.red  { background: #fef2f2; }
.skill-cat-icon.gray { background: var(--clr-gray-7); }
.skill-cat-title { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-5); }
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Progress bars */
.skill-progress-list { margin-top: var(--space-6); }
.skill-progress-item { margin-bottom: var(--space-5); }
.skill-progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  font-size: 0.9rem;
  font-weight: 600;
}
.progress-bar {
  height: 8px;
  background: var(--clr-gray-6);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--clr-blue), #60a5fa);
  width: 0;
  transition: width 1.2s cubic-bezier(.4,0,.2,1);
}
.progress-fill.red {
  background: linear-gradient(90deg, var(--clr-red), #f87171);
}
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-4);
}
.tool-item {
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-6);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
  transition: all var(--transition-med);
  cursor: default;
}
.tool-item:hover {
  border-color: var(--clr-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.tool-icon { font-size: 2rem; margin-bottom: var(--space-2); }
.tool-name { font-size: 0.8rem; font-weight: 600; color: var(--clr-gray-2); }

/* ============================================================
   PROJECTS PAGE
   ============================================================ */
.projects-hero {
  padding: var(--space-20) 0 var(--space-12);
  background: linear-gradient(135deg, #f8fafc 0%, var(--clr-blue-light) 100%);
  text-align: center;
}
.filter-bar {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}
.filter-btn {
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  border: 2px solid var(--clr-gray-5);
  color: var(--clr-gray-3);
  transition: all var(--transition-fast);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--clr-blue);
  color: var(--clr-blue);
  background: var(--clr-blue-light);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: var(--space-8);
}
.project-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-6);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-med);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: var(--clr-blue);
}
.project-card-img {
  height: 180px;
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
  background: linear-gradient(135deg, var(--clr-blue-light) 0%, #dbeafe 100%);
}
.project-card-img.red-bg {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
}
.project-card-img.gray-bg {
  background: linear-gradient(135deg, var(--clr-gray-7) 0%, var(--clr-gray-6) 100%);
}
.project-card-body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.project-card-desc {
  font-size: 0.9rem;
  color: var(--clr-gray-3);
  flex: 1;
  margin-bottom: var(--space-4);
  line-height: 1.65;
}
.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.project-card-footer {
  display: flex;
  gap: var(--space-3);
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-hero {
  padding: var(--space-20) 0 var(--space-12);
  background: linear-gradient(135deg, #f8fafc 0%, var(--clr-blue-light) 100%);
  text-align: center;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-16);
  align-items: start;
}
.contact-info-list { margin-top: var(--space-6); }
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.contact-info-icon {
  width: 48px; height: 48px; flex-shrink: 0;
  border-radius: var(--radius-md);
  background: var(--clr-blue-light);
  color: var(--clr-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.contact-info-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-gray-3);
  margin-bottom: var(--space-1);
}
.contact-info-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-black);
}
.contact-form {
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-6);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-md);
}
.form-group { margin-bottom: var(--space-6); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-black);
  margin-bottom: var(--space-2);
}
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--clr-gray-5);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--clr-black);
  background: var(--clr-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}
.form-input:focus {
  border-color: var(--clr-blue);
  box-shadow: 0 0 0 3px rgba(26,86,219,.12);
}
textarea.form-input { resize: vertical; min-height: 140px; }
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-8);
}
.form-success .check-icon {
  width: 60px; height: 60px;
  border-radius: var(--radius-full);
  background: #dcfce7;
  color: #16a34a;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto var(--space-4);
}

/* ============================================================
   PAGE HERO BAR (inner pages)
   ============================================================ */
.page-hero {
  padding: var(--space-16) 0;
  background: linear-gradient(135deg, var(--clr-white) 0%, var(--clr-blue-light) 100%);
  border-bottom: 1px solid var(--clr-gray-6);
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-stats   { justify-content: center; }
  .hero-visual  { display: none; }
  .about-grid   { grid-template-columns: 1fr; }
  .about-img-wrapper { max-width: 300px; margin: 0 auto; }
  .footer-grid  { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height); left: 0; right: 0;
    background: var(--clr-white);
    padding: var(--space-6);
    border-bottom: 1px solid var(--clr-gray-6);
    box-shadow: var(--shadow-md);
    gap: var(--space-5);
  }
  .nav-cta.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: calc(var(--nav-height) + 260px); left: 0; right: 0;
    background: var(--clr-white);
    padding: 0 var(--space-6) var(--space-6);
    box-shadow: var(--shadow-md);
  }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-categories { grid-template-columns: 1fr; }
}