/* Reyad Alfaituri portfolio — visual system v2 */
:root {
  --font-display: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --color-brand-violet: #8b7cff;
  --color-brand-blue: #38bdf8;
  --color-brand-cyan: #2dd4bf;
  --surface-glass: rgba(15, 28, 50, 0.72);
  --surface-strong: #0f1c32;
  --line-soft: rgba(148, 163, 184, 0.16);
  --glow-blue: rgba(56, 189, 248, 0.17);
  --shadow-premium: 0 24px 70px rgba(2, 8, 23, 0.38);
  --radius-2xl: 1.5rem;
}

[data-theme="light"] {
  --surface-glass: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --line-soft: rgba(51, 65, 85, 0.14);
  --glow-blue: rgba(14, 165, 233, 0.12);
  --shadow-premium: 0 24px 60px rgba(30, 64, 175, 0.10);
}

html { scroll-padding-top: 6rem; }

body {
  min-height: 100vh;
  font-family: var(--font-display);
  background-image:
    radial-gradient(circle at 78% 5%, var(--glow-blue), transparent 32rem),
    radial-gradient(circle at 15% 45%, rgba(139, 124, 255, 0.08), transparent 26rem),
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: auto, auto, 48px 48px, 48px 48px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: linear-gradient(180deg, transparent 0%, var(--color-bg-primary) 70%);
}

.container { max-width: 1220px; }

.site-header {
  border-bottom-color: var(--line-soft);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
}

.header-inner { min-height: 76px; }

.header-logo,
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 760;
  letter-spacing: -0.03em;
}

.header-logo-accent,
.footer-logo-accent {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(56, 189, 248, 0.36);
  border-radius: 0.7rem;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.18), rgba(139, 124, 255, 0.18));
  box-shadow: inset 0 0 18px rgba(56, 189, 248, 0.08);
}

.nav-link { position: relative; }
.nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -0.7rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-brand-blue), var(--color-brand-violet));
  transform: scaleX(0);
  transition: transform var(--transition-base) var(--transition-easing);
}
.nav-link:hover::after,
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.page-hero {
  position: relative;
  overflow: hidden;
  min-height: 690px;
  display: grid;
  align-items: center;
  padding-block: clamp(5rem, 10vw, 8rem);
}

.page-hero::before {
  content: "";
  position: absolute;
  width: 34rem;
  height: 34rem;
  right: -10rem;
  top: -8rem;
  border: 1px solid rgba(56, 189, 248, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 0 5rem rgba(56, 189, 248, 0.025), 0 0 0 10rem rgba(139, 124, 255, 0.018);
}

.hero-content { max-width: 760px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(340px, .75fr); gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.hero-title {
  max-width: 820px;
  font-size: clamp(3rem, 6vw, 5.75rem);
  line-height: 0.99;
  letter-spacing: -0.065em;
  text-wrap: balance;
}

.hero-title .gradient-text {
  color: transparent;
  background: linear-gradient(100deg, #f8fafc 4%, var(--color-brand-blue) 52%, var(--color-brand-violet) 92%);
  -webkit-background-clip: text;
  background-clip: text;
}

[data-theme="light"] .hero-title .gradient-text {
  background-image: linear-gradient(100deg, #0f172a 4%, #0284c7 52%, #6d5ce7 92%);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--surface-glass);
  color: var(--color-brand-blue);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero-label::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-brand-cyan);
  box-shadow: 0 0 0 5px rgba(45, 212, 191, 0.12);
}

.hero-text { max-width: 680px; font-size: clamp(1.1rem, 2vw, 1.3rem); line-height: 1.75; }
.hero-actions { gap: 0.85rem; }

.btn {
  min-height: 48px;
  padding-inline: 1.25rem;
  border-radius: 0.85rem;
  font-weight: 700;
}
.btn--primary {
  color: #04121f;
  border: 0;
  background: linear-gradient(110deg, var(--color-brand-cyan), var(--color-brand-blue));
  box-shadow: 0 12px 34px rgba(45, 212, 191, 0.18);
}
.btn--primary:hover { color: #020617; filter: brightness(1.08); }
.btn--secondary { background: var(--surface-glass); border-color: var(--line-soft); }

.hero-proof {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-2xl);
  background: var(--surface-glass);
  box-shadow: var(--shadow-premium);
  backdrop-filter: blur(18px);
}
.hero-proof-card {
  min-height: 132px;
  padding: 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 1rem;
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.065), transparent 60%);
}
.hero-proof-kicker { font: 600 0.72rem/1.3 var(--font-mono); color: var(--color-brand-blue); text-transform: uppercase; }
.hero-proof-value { display: block; margin-top: 0.55rem; font-size: 1rem; font-weight: 700; color: var(--color-text-primary); }
.hero-proof-meta { margin: 0.35rem 0 0; font-size: 0.84rem; }

.proof-strip {
  padding-block: 0;
  transform: translateY(-1.5rem);
}
.proof-strip-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-soft);
  border-radius: 1.15rem;
  overflow: hidden;
  background: var(--surface-glass);
  box-shadow: var(--shadow-premium);
  backdrop-filter: blur(18px);
}
.proof-item { padding: 1.15rem 1.3rem; border-right: 1px solid var(--line-soft); }
.proof-item:last-child { border-right: 0; }
.proof-item strong { display: block; color: var(--color-text-primary); font-size: 0.95rem; }
.proof-item span { color: var(--color-text-tertiary); font-size: 0.8rem; }

.section-label { font-family: var(--font-mono); }
.section-title { font-size: clamp(2.1rem, 4vw, 3.5rem); letter-spacing: -0.045em; text-wrap: balance; }
.section-description { font-size: 1.08rem; line-height: 1.75; }
.section--alt { background: linear-gradient(180deg, rgba(17, 27, 46, 0.72), rgba(11, 18, 33, 0.38)); border-block: 1px solid var(--line-soft); }
[data-theme="light"] .section--alt { background: linear-gradient(180deg, rgba(255,255,255,.7), rgba(241,245,249,.55)); }

.card {
  position: relative;
  overflow: hidden;
  border-color: var(--line-soft);
  border-radius: 1.15rem;
  background: var(--surface-glass);
  box-shadow: none;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.6), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}
.card:hover { border-color: rgba(56, 189, 248, 0.3); box-shadow: var(--shadow-premium); transform: translateY(-4px); }
.card:hover::before { opacity: 1; }
.card-label, .tag { font-family: var(--font-mono); }

.project-card-visual {
  display: flex;
  align-items: flex-end;
  min-height: 180px;
  margin: calc(var(--space-6) * -1) calc(var(--space-6) * -1) var(--space-6);
  padding: 1.2rem;
  border-bottom: 1px solid var(--line-soft);
  background:
    linear-gradient(135deg, rgba(56,189,248,.13), rgba(139,124,255,.12)),
    repeating-linear-gradient(90deg, transparent 0 33px, rgba(148,163,184,.07) 34px),
    repeating-linear-gradient(0deg, transparent 0 33px, rgba(148,163,184,.07) 34px);
}
.project-card-visual code { border: 1px solid var(--line-soft); background: rgba(2, 8, 23, .78); color: #7dd3fc; }

.case-study-hero { padding-block: clamp(4.5rem, 9vw, 7rem); }
.case-study-meta { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.5rem; }
.case-study-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.case-study-content h2 { margin-top: 3rem; margin-bottom: 1rem; }
.case-study-content h3 { margin-top: 2rem; }
.case-study-content p, .case-study-content li { font-size: 1.05rem; line-height: 1.8; }
.case-study-aside { position: sticky; top: 7rem; }
.fact-list { list-style: none; padding: 0; margin: 0; }
.fact-list li { padding-block: .85rem; border-bottom: 1px solid var(--line-soft); }
.fact-list strong { display: block; color: var(--color-text-primary); font-size: .8rem; text-transform: uppercase; letter-spacing: .07em; }

.architecture-panel {
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-2xl);
  background: var(--surface-glass);
}
.architecture-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; align-items: center; }
.architecture-node { min-height: 100px; padding: 1rem; border: 1px solid var(--line-soft); border-radius: 1rem; background: rgba(56,189,248,.055); }
.architecture-node strong { display: block; margin-bottom: .4rem; color: var(--color-brand-blue); }

.page-header { padding-block: clamp(4.5rem, 9vw, 7rem); border-bottom: 1px solid var(--line-soft); }
.page-header-title { max-width: 850px; font-size: clamp(2.7rem, 5vw, 5rem); letter-spacing: -.055em; }
.page-header-text { max-width: 720px; font-size: 1.18rem; line-height: 1.75; }

.contact-cta { background: linear-gradient(120deg, rgba(45,212,191,.11), rgba(56,189,248,.08) 45%, rgba(139,124,255,.11)); border-block: 1px solid var(--line-soft); }
.contact-cta-title { font-size: clamp(2rem, 4vw, 3.4rem); }
.site-footer { border-top-color: var(--line-soft); background: rgba(4, 10, 22, .78); }
[data-theme="light"] .site-footer { background: rgba(241,245,249,.9); }

.notice {
  padding: 1rem 1.1rem;
  border: 1px solid rgba(234,179,8,.24);
  border-radius: .85rem;
  background: var(--color-warning-muted);
  color: var(--color-text-secondary);
}

.section-action { margin-top: 2rem; }

.portrait-mark {
  display: grid;
  place-items: center;
  min-height: 360px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-2xl);
  background:
    radial-gradient(circle at 50% 35%, rgba(56, 189, 248, .22), transparent 10rem),
    linear-gradient(145deg, rgba(56, 189, 248, .07), rgba(139, 124, 255, .08)),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(148, 163, 184, .07) 40px),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(148, 163, 184, .07) 40px);
  box-shadow: var(--shadow-premium);
  text-align: center;
}
.portrait-mark span {
  display: block;
  font-size: clamp(5rem, 12vw, 9rem);
  font-weight: 800;
  letter-spacing: -.08em;
  color: transparent;
  background: linear-gradient(135deg, var(--color-brand-blue), var(--color-brand-violet));
  -webkit-background-clip: text;
  background-clip: text;
}
.portrait-mark small { color: var(--color-text-tertiary); font-family: var(--font-mono); }

.skills-evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.evidence-list { margin: 1rem 0 0; padding-left: 1.2rem; color: var(--color-text-secondary); }
.evidence-list li { margin-bottom: .65rem; line-height: 1.55; }
.evidence-list li::marker { color: var(--color-brand-cyan); }

.project-feature-list { display: grid; gap: 1.25rem; }
.project-feature {
  display: grid;
  grid-template-columns: minmax(260px, .75fr) minmax(0, 1.25fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(1.1rem, 3vw, 2rem);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-2xl);
  background: var(--surface-glass);
}
.project-feature-visual {
  display: grid;
  place-items: center;
  min-height: 260px;
  padding: 1.25rem;
  border: 1px solid var(--line-soft);
  border-radius: 1.15rem;
  background:
    linear-gradient(135deg, rgba(56, 189, 248, .14), rgba(139, 124, 255, .12)),
    repeating-linear-gradient(90deg, transparent 0 31px, rgba(148, 163, 184, .07) 32px),
    repeating-linear-gradient(0deg, transparent 0 31px, rgba(148, 163, 184, .07) 32px);
}
.project-feature-visual code {
  color: #7dd3fc;
  background: rgba(2, 8, 23, .82);
  border: 1px solid rgba(125, 211, 252, .18);
  border-radius: .8rem;
  padding: 1rem;
  line-height: 1.8;
}
.project-feature .btn { margin-top: 1rem; margin-right: .5rem; }

.form-hint, .muted { color: var(--color-text-tertiary); font-size: .86rem; }
.form-hint { margin-top: .4rem; }
.not-found { min-height: calc(100vh - 160px); display: grid; align-items: center; }
.not-found .container { max-width: 850px; }

@media (max-width: 1023px) {
  .page-hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-proof { max-width: 700px; }
  .proof-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .proof-item:nth-child(2) { border-right: 0; }
  .proof-item:nth-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .case-study-grid { grid-template-columns: 1fr; }
  .case-study-aside { position: static; }
  .project-feature { grid-template-columns: 1fr; }
  .project-feature-visual { min-height: 200px; }
}

@media (max-width: 1099px) {
  .header-nav, .header-resume { display: none; }
  .menu-toggle { display: inline-flex; }
}

@media (min-width: 1100px) {
  .header-nav, .header-resume { display: flex; }
  .menu-toggle { display: none; }
}

@media (max-width: 639px) {
  .page-hero { padding-top: 4rem; }
  .hero-title { font-size: clamp(2.65rem, 13vw, 4rem); }
  .hero-proof { grid-template-columns: 1fr; }
  .hero-proof-card { min-height: auto; }
  .proof-strip { transform: none; padding-top: 1rem; }
  .proof-strip-inner { grid-template-columns: 1fr; }
  .proof-item { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .proof-item:last-child { border-bottom: 0; }
  .architecture-flow { grid-template-columns: 1fr; }
  .skills-evidence-grid { grid-template-columns: 1fr; }
  .project-feature { padding: 1rem; }
  .portrait-mark { min-height: 260px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition-duration: .01ms !important; }
}