/* ============================================
   YUSEF — Portfolio Custom Styles
   Editorial minimalism on dark
   ============================================ */

:root {
  --bg-primary: #0A0A0B;
  --surface: #13141A;
  --border-subtle: #1F2127;
  --text-primary: #FAFAFA;
  --text-secondary: #8B8D94;
  --text-tertiary: #5A5C63;
  --accent: #C99B5E;
  --accent-hover: #D8B077;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Selection */
::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

/* Focus states */
*:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--bg-primary);
  padding: 12px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 200;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* ============================================
   HEADER / NAV
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.site-header.scrolled { border-bottom-color: var(--border-subtle); }

.btn-ghost-sm {
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.2s ease;
}
.btn-ghost-sm:hover {
  background: var(--accent);
  color: var(--bg-primary);
}

.mobile-menu {
  display: flex;
  flex-direction: column;
  padding: 16px 24px 32px;
  border-top: 1px solid var(--border-subtle);
}
.mobile-menu[hidden] { display: none; }

.mobile-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  padding: 16px 0;
  border-bottom: 1px solid var(--border-subtle);
  min-height: 44px;
  display: flex;
  align-items: center;
}
.mobile-link:last-child { border-bottom: none; }
.mobile-link-accent {
  color: var(--accent);
  margin-top: 8px;
}

/* ============================================
   TYPOGRAPHY UTILITIES
   ============================================ */
.mono-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
@media (max-width: 768px) {
  .mono-label { font-size: 11px; }
}

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
  display: inline-block;
}
.section-label.justify-center { justify-content: center; }

@media (max-width: 768px) {
  .section-label { font-size: 11px; }
}

.section-headline {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  max-width: 22ch;
  margin-bottom: 32px;
}
.section-headline em { font-style: italic; }
.section-headline-cta {
  max-width: none;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.prose-block {
  max-width: 65ch;
  margin-top: 32px;
}
.prose-block p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.prose-block p:last-child { margin-bottom: 0; }
@media (min-width: 768px) {
  .prose-block p { font-size: 18px; }
}
@media (max-width: 480px) {
  .prose-block p { font-size: 16px; }
}

.prose-intro {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 60ch;
  margin-top: 24px;
}
@media (min-width: 768px) {
  .prose-intro { font-size: 20px; }
}

/* ============================================
   SECTION LAYOUT
   ============================================ */
.section {
  padding: 96px 0;
}
@media (min-width: 768px) {
  .section { padding: 128px 0; }
}
@media (min-width: 1024px) {
  .section { padding: 160px 0; }
}

.section-divider {
  max-width: 1280px;
  margin: 0 auto;
  height: 1px;
  background: var(--border-subtle);
}

/* ============================================
   HERO
   ============================================ */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0 80px;
  background: linear-gradient(180deg, var(--bg-primary) 0%, #0E0F14 100%);
  position: relative;
}

.hero-headline {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(56px, 11vw, 120px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 32px;
}
.hero-headline .non-italic {
  font-style: normal;
  font-family: 'Instrument Serif', serif;
}

.hero-subhead {
  font-family: 'Inter', sans-serif;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 56ch;
  margin: 0 auto 48px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 96px;
}

/* Buttons */
.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  transition: transform 0.2s ease, background-color 0.2s ease;
  border: 1px solid var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: scale(1.02);
}

.btn-primary-lg {
  font-size: 16px;
  padding: 18px 40px;
  min-height: 56px;
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  transition: all 0.2s ease;
}
.btn-ghost:hover {
  background: rgba(201, 155, 94, 0.08);
  color: var(--accent-hover);
  border-color: var(--accent-hover);
}

/* Scroll cue */
.scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0.5;
}
.scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: var(--text-secondary);
  animation: scrollPulse 2.4s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(0.3); opacity: 0.3; }
  50% { transform: scaleY(1); opacity: 0.8; }
}

/* ============================================
   SERVICE CARDS
   ============================================ */
.service-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  position: relative;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.service-card:hover {
  border-color: rgba(201, 155, 94, 0.3);
  transform: translateY(-2px);
}
@media (min-width: 768px) {
  .service-card { padding: 40px; }
}

.corner-label {
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
}

.card-headline {
  font-family: 'Instrument Serif', serif;
  font-size: 28px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-primary);
  margin-top: 32px;
  margin-bottom: 16px;
}
@media (min-width: 768px) {
  .card-headline { font-size: 32px; }
}

.card-body {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ============================================
   PILLAR CARDS
   ============================================ */
.pillar-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.3s ease;
}
.pillar-card:hover {
  border-color: rgba(201, 155, 94, 0.25);
}
@media (min-width: 768px) {
  .pillar-card { padding: 40px; }
}

.pillar-headline {
  font-family: 'Instrument Serif', serif;
  font-size: 32px;
  font-weight: 400;
  line-height: 1.1;
  color: var(--text-primary);
  margin: 8px 0;
}
@media (min-width: 768px) {
  .pillar-headline { font-size: 36px; }
}

.pillar-quote {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 18px;
  color: var(--accent);
  padding-left: 16px;
  border-left: 2px solid var(--accent);
  margin: 8px 0 16px;
}

.pillar-list {
  list-style: none;
  padding: 0;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pillar-list li {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
}

.rotation-block {
  margin-top: 80px;
  padding: 48px;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  background: var(--surface);
}
.rotation-block .mono-label { color: var(--accent); margin-bottom: 16px; }
.rotation-headline {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: 28px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}
@media (min-width: 768px) {
  .rotation-headline { font-size: 36px; }
}

/* ============================================
   EMAIL SHOWCASE CARDS
   ============================================ */
.email-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.email-preview {
  aspect-ratio: 3 / 5;
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.email-card:hover .email-preview {
  border-color: rgba(201, 155, 94, 0.3);
}

.email-preview-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--text-tertiary);
}

.corner-accent {
  position: absolute;
  width: 24px;
  height: 24px;
}
.corner-accent-tl {
  top: 12px;
  left: 12px;
  border-top: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
}

.email-title {
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  font-weight: 400;
  line-height: 1.25;
  color: var(--text-primary);
  margin-top: 4px;
}
.email-title em { font-style: italic; }

.email-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
  list-style: none;
  padding: 0;
  margin: 64px 0 0;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.timeline-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  position: relative;
  padding-left: 24px;
}

.timeline-step::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.timeline::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 16px;
  bottom: 8px;
  width: 1px;
  background: var(--border-subtle);
  z-index: 0;
}

.timeline-day {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
}

.timeline-content {
  margin-top: 4px;
}

.timeline-title {
  font-family: 'Instrument Serif', serif;
  font-size: 24px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 8px;
}

@media (min-width: 768px) {
  .timeline-step {
    grid-template-columns: 160px 1fr;
    gap: 48px;
    padding-left: 0;
  }
  .timeline-step::before { left: -32px; top: 14px; }
  .timeline::after { left: -29px; top: 22px; }
  .timeline { padding-left: 32px; }
  .timeline-title { font-size: 28px; }
}

/* ============================================
   SELECTION PANELS
   ============================================ */
.selection-panel {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
}
@media (min-width: 768px) {
  .selection-panel { padding: 40px; }
}

.selection-headline {
  font-family: 'Instrument Serif', serif;
  font-size: 32px;
  font-weight: 400;
  font-style: italic;
  line-height: 1.1;
  color: var(--text-primary);
  margin: 12px 0 24px;
}

.check-list, .cross-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.check-list li, .cross-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
}
.check-mark {
  color: var(--accent);
  font-weight: 600;
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1.5;
}
.cross-mark {
  color: var(--text-tertiary);
  font-weight: 400;
  font-size: 20px;
  flex-shrink: 0;
  line-height: 1.4;
}

.closing-line {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 400;
  line-height: 1.3;
  color: var(--text-primary);
  text-align: center;
  max-width: 32ch;
  margin: 96px auto 0;
}

/* ============================================
   ABOUT
   ============================================ */
.signature {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  margin-top: 32px;
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  border-top: 1px solid var(--border-subtle);
}
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 28px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  color: var(--text-primary);
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  font-style: italic;
  text-align: left;
  line-height: 1.3;
  transition: color 0.2s ease;
  min-height: 64px;
}
.faq-question:hover { color: var(--accent); }
@media (min-width: 768px) {
  .faq-question { font-size: 28px; padding: 32px 0; }
}

.faq-icon {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  font-style: normal;
  display: inline-block;
  width: 24px;
  text-align: center;
}
.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 0 32px;
  max-width: 60ch;
}
.faq-answer[hidden] { display: none; }
.faq-answer p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
}
@media (min-width: 768px) {
  .faq-answer p { font-size: 17px; }
}

/* ============================================
   CTA SECTION
   ============================================ */
.section-cta { padding: 128px 0 144px; }
@media (min-width: 768px) {
  .section-cta { padding: 192px 0 224px; }
}

.gold-underline {
  background-image: linear-gradient(to right, var(--accent), var(--accent));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 100% 2px;
  padding-bottom: 4px;
}

.cta-block {
  margin-top: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.contact-secondary {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
}
.text-link {
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.text-link:hover { border-bottom-color: var(--accent); }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 64px;
}

.footer-row {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
}
@media (min-width: 768px) {
  .footer-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-row-bottom {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.footer-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--text-primary);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-nav a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.footer-nav a:hover { color: var(--text-primary); }

.footer-copy {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
}

.footer-social {
  display: flex;
  gap: 16px;
}
.footer-social a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
  transition: color 0.2s ease;
}
.footer-social a:hover { color: var(--accent); }

/* ============================================
   FADE-IN ON SCROLL
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html { scroll-behavior: auto; }
  .scroll-line { animation: none; }
}