/* ==========================================================
   KS400 — Karl Smith Web Design
   styles.css
   ========================================================== */

/* ----------------------------------------------------------
   1. Google Fonts
   ---------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

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

/* ----------------------------------------------------------
   3. Design Tokens — Light Mode (default)
   ---------------------------------------------------------- */
:root {
  --bg:             #FFFFFF;
  --surface:        #F5F5F5;
  --text:           #1A1A1A;
  --text-muted:     #6B6B6B;
  --accent:         #3D5A80;
  --accent-hover:   #2C4A6B;
  --border:         #E0E0E0;

  --terminal-bg:    #0D0D0D;
  --terminal-green: #39FF14;
  --terminal-dim:   #1A8C00;

  --font-sans:  'Inter', system-ui, sans-serif;
  --font-mono:  'Courier New', Courier, monospace;

  --container:  1160px;
  --radius:     6px;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:  0 8px 28px rgba(0,0,0,0.10);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.14);

  --nav-bg:         rgba(255, 255, 255, 0.65);
  --nav-bg-scrolled: rgba(255, 255, 255, 0.88);

  --transition: 0.25s ease;
}

/* ----------------------------------------------------------
   4. Dark Mode Overrides
   ---------------------------------------------------------- */
[data-theme="dark"] {
  --bg:             #0D0D0D;
  --surface:        #1A1A1A;
  --text:           #E8E8E8;
  --text-muted:     #888888;
  --accent:         #6B9ABF;
  --accent-hover:   #89B5D8;
  --border:         #2A2A2A;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.30);
  --shadow-md:  0 8px 28px rgba(0,0,0,0.50);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.70);

  --nav-bg:         rgba(13, 13, 13, 0.65);
  --nav-bg-scrolled: rgba(13, 13, 13, 0.88);
}

/* ----------------------------------------------------------
   5. Base Styles
   ---------------------------------------------------------- */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  transition: background var(--transition), color var(--transition);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 700; line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 600; line-height: 1.3; }
h4 { font-size: 1rem; font-weight: 600; }
p  { color: var(--text); }

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

/* ----------------------------------------------------------
   6. Utilities
   ---------------------------------------------------------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ----------------------------------------------------------
   7. Navigation
   ---------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: var(--nav-bg-scrolled);
  padding: 14px 0;
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
  white-space: nowrap;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--terminal-green);
  transition: width var(--transition);
}

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

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

/* Nav right — theme toggle + hamburger */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  transition: background var(--transition), border-color var(--transition);
}

.theme-toggle:hover { background: var(--border); }

/* Show moon (switch to dark) in light mode, sun (switch to light) in dark */
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: flex; }

[data-theme="dark"] .theme-toggle .icon-sun  { display: flex; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hamburger → X animation */
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----------------------------------------------------------
   8. Footer (AS/400 terminal signature)
   ---------------------------------------------------------- */
.footer {
  background: var(--terminal-bg);
  color: var(--terminal-green);
  font-family: var(--font-mono);
  font-feature-settings: "zero" 1, "ss19" 1;
  font-size: 0.82rem;
  padding: 52px 0 28px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--terminal-dim);
}

.footer-brand p {
  color: var(--terminal-dim);
  margin-top: 12px;
  line-height: 1.7;
}

.footer-col h4 {
  color: var(--terminal-green);
  margin-bottom: 16px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }

.footer-col a {
  color: var(--terminal-dim);
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--terminal-green); }

.footer-col address {
  font-family: var(--font-sans);
  font-style: normal;
  color: var(--terminal-dim);
  line-height: 1.8;
}

.footer-col address a {
  font-family: var(--font-sans);
  color: var(--terminal-dim);
  display: block;
  margin-top: 8px;
}

.footer-col address a:hover { color: var(--terminal-green); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  color: var(--terminal-dim);
  font-family: var(--font-sans);
  font-size: 0.78rem;
}

.footer-bottom a:hover { color: var(--terminal-green); }

/* ----------------------------------------------------------
   9. Buttons
   ---------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.btn-terminal {
  background: transparent;
  color: var(--terminal-green);
  border-color: var(--terminal-green);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.btn-terminal:hover {
  background: var(--terminal-green);
  color: var(--terminal-bg);
  transform: translateY(-2px);
}

/* ----------------------------------------------------------
   10. Terminal Block Component
   ---------------------------------------------------------- */
.terminal-block {
  background: var(--terminal-bg);
  border: 1px solid var(--terminal-dim);
  border-radius: var(--radius);
  padding: 24px 28px;
  font-family: var(--font-mono);
  font-feature-settings: "zero" 1, "ss19" 1;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--terminal-green);
}

.terminal-block .tb-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--terminal-dim);
}

.terminal-block .tb-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--terminal-dim);
}

/* Easter egg — first terminal dot links to 404 */
.tb-dot-link { display: flex; text-decoration: none; }
.tb-dot-link:hover .tb-dot { opacity: 0.45; transition: opacity 0.2s ease; }

.terminal-block .tb-title {
  color: var(--terminal-dim);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.terminal-block .tb-line { color: var(--terminal-dim); }
.terminal-block .tb-line .cmd { color: var(--terminal-green); }
.terminal-block .tb-line .val { color: #A8FF78; }


.terminal-cursor {
  display: inline-block;
  width: 9px; height: 1.1em;
  background: var(--terminal-green);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

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

/* ----------------------------------------------------------
   11. Cards
   ---------------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--border);
}

.card-img-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.card-body { padding: 24px; }

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.card-body h3 { margin-bottom: 8px; }
.card-body p  { color: var(--text-muted); margin-bottom: 20px; font-size: 0.95rem; }

/* ----------------------------------------------------------
   12. Page Hero (inner pages)
   ---------------------------------------------------------- */
.page-hero {
  padding: 120px 0 60px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 60px;
}

.page-hero h1 { margin-bottom: 12px; }

.page-hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
}

/* ----------------------------------------------------------
   13. Homepage — Hero
   ---------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content h1 { margin-bottom: 20px; }

.hero-content h1 span { color: var(--accent); }

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 460px;
  line-height: 1.7;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ----------------------------------------------------------
   14. Homepage — Work Preview
   ---------------------------------------------------------- */
.work-preview {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 40px;
}

.section-header h2 { margin: 0; }

.section-header a {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
}

.section-header a:hover { text-decoration: underline; }

/* ----------------------------------------------------------
   15. Homepage — Services Overview
   ---------------------------------------------------------- */
.services-overview {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.services-overview > .container > p {
  color: var(--text-muted);
  margin-top: 12px;
  margin-bottom: 48px;
  max-width: 560px;
  font-size: 1.05rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-item {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.service-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.service-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--terminal-green);
  margin-bottom: 16px;
  display: block;
}

.service-item h3 { margin-bottom: 10px; }

.service-item p { color: var(--text-muted); font-size: 0.95rem; }

/* ----------------------------------------------------------
   16. CTA Band
   ---------------------------------------------------------- */
.cta-band {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.cta-band h2 { margin-bottom: 12px; }

.cta-band p {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* ----------------------------------------------------------
   17. Portfolio Page
   ---------------------------------------------------------- */
.portfolio-grid {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.portfolio-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition);
}

.portfolio-card:hover { box-shadow: var(--shadow-md); }

.portfolio-card-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.portfolio-card-body .card-tags { margin-bottom: 16px; }
.portfolio-card-body h2 { margin-bottom: 12px; font-size: clamp(1.3rem, 2.5vw, 1.75rem); }
.portfolio-card-body p { color: var(--text-muted); margin-bottom: 24px; }

.coming-soon {
  padding: 48px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.coming-soon span { color: var(--terminal-green); }

/* ----------------------------------------------------------
   18. Services Page
   ---------------------------------------------------------- */
.services-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 80px;
}

.service-card {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.service-card h3 { margin-bottom: 12px; }
.service-card p  { color: var(--text-muted); font-size: 0.95rem; }
.service-card ul { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.service-card li { color: var(--text-muted); font-size: 0.9rem; padding-left: 16px; position: relative; }
.service-card li::before { content: '→'; position: absolute; left: 0; color: var(--accent); }

.process-section { padding: 80px 0; border-top: 1px solid var(--border); }
.process-section h2 { margin-bottom: 48px; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.process-step { text-align: center; }

.process-step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--terminal-green);
  display: block;
  margin-bottom: 12px;
}

.process-step h4 { margin-bottom: 8px; }
.process-step p  { font-size: 0.88rem; color: var(--text-muted); }

.pricing-note {
  margin-top: 64px;
  padding: 40px;
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.pricing-note h3 { margin-bottom: 12px; }
.pricing-note p  { color: var(--text-muted); }

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 0.95rem;
}
.pricing-table th {
  text-align: left;
  padding: 10px 12px;
  background: var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.pricing-table td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.pricing-table td:last-child {
  white-space: nowrap;
  font-weight: 600;
  color: var(--accent);
  font-family: var(--font-mono);
}
.pricing-table tbody tr:last-child td { border-bottom: none; }

/* ----------------------------------------------------------
   19. About Page
   ---------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 80px;
}

.about-bio h2 { margin-bottom: 20px; }
.about-bio p  { color: var(--text-muted); margin-bottom: 16px; line-height: 1.75; }

.skills-section { padding: 64px 0; border-top: 1px solid var(--border); }
.skills-section h2 { margin-bottom: 40px; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.skill-tag {
  padding: 12px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  transition: border-color var(--transition);
}

.skill-tag:hover { border-color: var(--terminal-green); }

/* ----------------------------------------------------------
   20. Contact Page
   ---------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-form label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color var(--transition), background var(--transition);
  margin-bottom: 20px;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
}

.contact-form textarea { min-height: 160px; resize: vertical; }

.contact-info h3 { margin-bottom: 24px; }

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.contact-detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-detail-item span:first-child {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contact-detail-item a,
.contact-detail-item span:last-child {
  color: var(--accent);
  font-weight: 500;
}

.response-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 16px;
}

/* ----------------------------------------------------------
   21. 404 Page (full terminal)
   ---------------------------------------------------------- */
.terminal-404 {
  min-height: 100vh;
  background: var(--terminal-bg);
  color: var(--terminal-green);
  font-family: var(--font-mono);
  font-feature-settings: "zero" 1, "ss19" 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.terminal-404-inner { max-width: 640px; width: 100%; }

.t404-ascii {
  font-size: clamp(0.55rem, 1.8vw, 0.9rem);
  line-height: 1.2;
  color: var(--terminal-dim);
  margin-bottom: 32px;
  white-space: pre;
}

.t404-title {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 500;
  margin-bottom: 8px;
}

.t404-msg {
  color: var(--terminal-dim);
  margin-bottom: 40px;
  font-size: 0.9rem;
  line-height: 1.6;
}

.t404-nav { display: flex; flex-direction: column; gap: 12px; }

.t404-cmd {
  color: var(--terminal-dim);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color var(--transition);
}

.t404-cmd:hover { color: var(--terminal-green); }
.t404-cmd:hover::before { content: '> '; color: var(--terminal-green); }
.t404-cmd::before { content: '$ '; }

.t404-divider {
  border: none;
  border-top: 1px solid var(--terminal-dim);
  margin: 32px 0;
}

/* ----------------------------------------------------------
   22. Responsive
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
  /* Nav — hamburger */
  .nav-links {
    display: none;
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: 72%;
    max-width: 320px;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 96px 36px 36px;
    gap: 28px;
    box-shadow: -4px 0 48px rgba(0,0,0,0.15);
    z-index: 999;
    border-left: 1px solid var(--border);
  }

  .nav-links.open { display: flex; }
  .nav-toggle     { display: flex; }

  .nav-links a { font-size: 1.05rem; }

  /* Layout shifts */
  .hero-grid          { grid-template-columns: 1fr; gap: 48px; }
  .hero               { min-height: auto; padding: 120px 0 80px; }
  .services-grid      { grid-template-columns: repeat(2, 1fr); }
  .skills-grid        { grid-template-columns: repeat(3, 1fr); }
  .about-grid         { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid       { grid-template-columns: 1fr; gap: 48px; }
  .portfolio-card     { grid-template-columns: 1fr; }
  .process-steps      { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .footer-grid        { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero-btns          { flex-direction: column; align-items: flex-start; }
  .services-grid      { grid-template-columns: 1fr; }
  .services-list      { grid-template-columns: 1fr; }
  .process-steps      { grid-template-columns: repeat(2, 1fr); }
  .skills-grid        { grid-template-columns: repeat(2, 1fr); }
  .footer-grid        { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom      { flex-direction: column; gap: 12px; text-align: center; }
  .section-header     { flex-direction: column; gap: 8px; }
  .portfolio-card     { padding: 24px; }
}

@media (max-width: 480px) {
  .page-hero   { padding: 100px 0 40px; }
  .cta-band    { padding: 60px 0; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: 1fr 1fr; }
}