/* Petit Sébastien — Portfolio v2 (cyan · emerald · amber) */

:root {
  --pf-bg: #0a0e14;
  --pf-bg-2: #111820;
  --pf-bg-3: #1a222d;
  --pf-text: #f1f5f9;
  --pf-muted: #94a3b8;
  --pf-dim: #64748b;
  --pf-accent: #0ea5e9;
  --pf-accent-2: #10b981;
  --pf-accent-3: #fbbf24;
  --pf-accent-rgb: 14, 165, 233;
  --pf-emerald-rgb: 16, 185, 129;
  --pf-border: rgba(255, 255, 255, 0.09);
  --pf-glass: rgba(255, 255, 255, 0.04);
  --pf-radius: 20px;
  --pf-radius-sm: 12px;
  --pf-font: "Outfit", system-ui, sans-serif;
  --pf-mono: "IBM Plex Mono", ui-monospace, monospace;
  --pf-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
  --pf-glow: 0 0 80px rgba(var(--pf-accent-rgb), 0.22);
  --pf-tilt-x: 0deg;
  --pf-tilt-y: 0deg;
}

*, *::before, *::after { box-sizing: border-box; }

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

body.pf-body {
  margin: 0;
  font-family: var(--pf-font);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--pf-text);
  background: var(--pf-bg);
  overflow-x: hidden;
}

.pf-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.pf-grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(var(--pf-accent-rgb), 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--pf-accent-rgb), 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent);
  z-index: 0;
}

.pf-cursor-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  margin: -210px 0 0 -210px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.35s ease;
  background: radial-gradient(
    circle,
    rgba(var(--pf-accent-rgb), 0.14) 0%,
    rgba(var(--pf-emerald-rgb), 0.08) 35%,
    transparent 70%
  );
}

body.pf-body.is-pointer-active .pf-cursor-glow {
  opacity: 1;
}

.pf-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: 0.75rem 1rem;
  background: var(--pf-accent);
  color: #fff;
  text-decoration: none;
  border-radius: var(--pf-radius-sm);
}
.pf-skip:focus { left: 1rem; top: 1rem; }

.pf-container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

/* Header */
.pf-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 14, 20, 0.72);
  border-bottom: 1px solid var(--pf-border);
  transition: background 0.3s, box-shadow 0.3s;
}

.pf-header.is-scrolled {
  background: rgba(10, 14, 20, 0.92);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.pf-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.pf-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--pf-text);
}

.pf-logo__mark {
  font-family: var(--pf-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pf-accent);
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
  background: var(--pf-glass);
  border: 1px solid var(--pf-border);
}

.pf-logo__name {
  font-weight: 600;
  font-size: 0.95rem;
}

.pf-nav {
  display: none;
  gap: 1.5rem;
}
.pf-nav a {
  position: relative;
  color: var(--pf-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.pf-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--pf-accent), var(--pf-accent-2));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
.pf-nav a:hover { color: var(--pf-text); }
.pf-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

@media (min-width: 768px) {
  .pf-nav { display: flex; }
}

/* Buttons */
.pf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s, background 0.25s;
}
.pf-btn--sm { padding: 0.5rem 1rem; font-size: 0.85rem; }
.pf-btn--lg { padding: 0.85rem 1.5rem; font-size: 1rem; }
.pf-btn--primary {
  background: linear-gradient(135deg, var(--pf-accent), var(--pf-accent-2));
  color: #fff;
  box-shadow: 0 8px 32px rgba(var(--pf-accent-rgb), 0.35);
}
.pf-btn--primary:hover {
  box-shadow: 0 14px 40px rgba(var(--pf-accent-rgb), 0.45);
}
.pf-btn--ghost {
  background: var(--pf-glass);
  border-color: var(--pf-border);
  color: var(--pf-text);
}
.pf-btn--ghost:hover { background: rgba(255, 255, 255, 0.08); }

.pf-btn--whatsapp {
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: #fff;
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.35);
}
.pf-btn--whatsapp:hover {
  box-shadow: 0 14px 40px rgba(37, 211, 102, 0.45);
}
.pf-btn__icon {
  flex-shrink: 0;
}

/* Hero */
.pf-hero {
  position: relative;
  padding: 3rem 0 5rem;
  overflow: hidden;
}

.pf-hero__glow {
  position: absolute;
  top: -15%;
  right: -5%;
  width: 55%;
  height: 75%;
  background: radial-gradient(circle, rgba(var(--pf-accent-rgb), 0.18), transparent 65%);
  pointer-events: none;
}

.pf-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .pf-hero__grid {
    grid-template-columns: minmax(240px, 300px) 1fr 1fr;
    gap: 2rem 2.5rem;
    align-items: start;
  }
  .pf-hero__visual { grid-row: 1 / 3; }
}

/* Photo */
.pf-hero__visual {
  display: flex;
  justify-content: center;
}

.pf-photo-wrap {
  position: relative;
  width: min(100%, 300px);
  transform-style: preserve-3d;
  transform: perspective(900px) rotateX(var(--pf-tilt-x)) rotateY(var(--pf-tilt-y));
  transition: transform 0.15s ease-out;
  will-change: transform;
}

.pf-photo__glow {
  position: absolute;
  inset: -12%;
  background: radial-gradient(circle at 50% 40%, rgba(var(--pf-accent-rgb), 0.35), rgba(var(--pf-emerald-rgb), 0.15) 45%, transparent 70%);
  filter: blur(24px);
  z-index: 0;
  animation: pf-photo-pulse 4s ease-in-out infinite;
}

@keyframes pf-photo-pulse {
  0%, 100% { opacity: 0.75; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.pf-photo__frame {
  position: relative;
  z-index: 1;
  border-radius: calc(var(--pf-radius) + 4px);
  padding: 3px;
  background: linear-gradient(145deg, var(--pf-accent), var(--pf-accent-2), var(--pf-accent-3));
  box-shadow: var(--pf-shadow), var(--pf-glow);
}

.pf-photo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--pf-radius);
  object-fit: cover;
  object-position: center top;
  aspect-ratio: 3 / 4;
  background: var(--pf-bg-2);
}

.pf-photo__badge {
  position: absolute;
  z-index: 2;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--pf-border);
  color: var(--pf-text);
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.pf-photo__badge--top {
  top: 12%;
  right: -8%;
  color: var(--pf-accent-3);
  border-color: rgba(251, 191, 36, 0.35);
}

.pf-photo__badge--bottom {
  bottom: 10%;
  left: -6%;
  color: var(--pf-accent);
  border-color: rgba(var(--pf-accent-rgb), 0.35);
}

.pf-float[data-float="1"] { animation: pf-float-a 5s ease-in-out infinite; }
.pf-float[data-float="2"] { animation: pf-float-b 6s ease-in-out infinite 0.5s; }

@keyframes pf-float-a {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes pf-float-b {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

.pf-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--pf-accent-2);
  margin: 0 0 1rem;
}

.pf-kicker__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pf-accent-2);
  box-shadow: 0 0 12px var(--pf-accent-2);
  animation: pf-pulse 2s ease-in-out infinite;
}

@keyframes pf-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.pf-hero__title {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.pf-hero__name {
  background: linear-gradient(135deg, #fff 0%, var(--pf-accent) 45%, var(--pf-accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pf-hero__role {
  margin: 0 0 1.25rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--pf-muted);
}

.pf-hero__lead {
  margin: 0 0 1.75rem;
  color: var(--pf-muted);
  max-width: 52ch;
}

.pf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.pf-hero__meta {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.88rem;
  color: var(--pf-dim);
}
.pf-hero__meta strong { color: var(--pf-muted); font-weight: 500; }

/* Terminal */
.pf-terminal {
  border-radius: var(--pf-radius);
  border: 1px solid var(--pf-border);
  background: var(--pf-bg-2);
  box-shadow: var(--pf-shadow), var(--pf-glow);
  overflow: hidden;
  transform-style: preserve-3d;
  transform: perspective(900px) rotateX(var(--pf-tilt-x)) rotateY(var(--pf-tilt-y));
  transition: transform 0.15s ease-out;
}

.pf-terminal__bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid var(--pf-border);
}

.pf-terminal__bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.pf-terminal__bar span:nth-child(1) { background: #ef4444; }
.pf-terminal__bar span:nth-child(2) { background: #eab308; }
.pf-terminal__bar span:nth-child(3) { background: #22c55e; }

.pf-terminal__title {
  margin-left: 0.5rem;
  font-family: var(--pf-mono);
  font-size: 0.75rem;
  color: var(--pf-dim);
}

.pf-terminal__body {
  margin: 0;
  padding: 1.25rem 1.25rem 1.5rem;
  min-height: 280px;
  font-family: var(--pf-mono);
  font-size: 0.78rem;
  line-height: 1.7;
  overflow: auto;
  position: relative;
}

.pf-code { color: #e4e4e7; }
.pf-code .kw { color: var(--pf-accent); }
.pf-code .fn { color: var(--pf-accent-2); }
.pf-code .str { color: var(--pf-accent-3); }
.pf-code .cm { color: #52525b; }
.pf-code .num { color: #fbbf24; }

.pf-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--pf-accent);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: pf-blink 1s step-end infinite;
}

@keyframes pf-blink { 50% { opacity: 0; } }

/* Sections */
.pf-section {
  padding: 5rem 0;
  position: relative;
  z-index: 1;
}

.pf-section--dark {
  background: linear-gradient(180deg, transparent, rgba(var(--pf-accent-rgb), 0.05), transparent);
}

.pf-section--cta { padding-bottom: 6rem; }

.pf-eyebrow {
  font-family: var(--pf-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pf-accent);
  margin: 0 0 0.75rem;
}

.pf-section__head h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.pf-section__head--center { text-align: center; }

.pf-section__lead {
  margin: 0 auto;
  max-width: 60ch;
  color: var(--pf-muted);
  text-align: center;
}

.pf-section__head--center .pf-section__lead { margin-top: 0.5rem; }

/* Cards + tilt */
.pf-tilt {
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(var(--pf-tilt-x)) rotateY(var(--pf-tilt-y));
  transition: transform 0.2s ease-out;
  will-change: transform;
}

.pf-about-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .pf-about-grid { grid-template-columns: 1fr 1fr; }
}

.pf-card {
  position: relative;
  padding: 2rem;
  border-radius: var(--pf-radius);
  border: 1px solid var(--pf-border);
  background: var(--pf-bg-2);
  overflow: hidden;
}

.pf-card--premium {
  background: linear-gradient(145deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  box-shadow: var(--pf-shadow);
}

.pf-card--premium:hover {
  border-color: rgba(var(--pf-accent-rgb), 0.25);
}

.pf-card__shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.06) 50%, transparent 60%);
  transform: translateX(-100%);
  animation: pf-shine 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes pf-shine {
  0%, 100% { transform: translateX(-100%); }
  50% { transform: translateX(100%); }
}

.pf-card h3 {
  margin: 0 0 1rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.pf-card p {
  margin: 0 0 1rem;
  color: var(--pf-muted);
  font-size: 0.98rem;
}
.pf-card p:last-child { margin-bottom: 0; }

/* Project */
.pf-project {
  position: relative;
  margin-top: 2.5rem;
  border-radius: calc(var(--pf-radius) + 4px);
  padding: 2px;
  background: linear-gradient(135deg, var(--pf-accent), var(--pf-accent-2), var(--pf-accent-3));
}

.pf-project__glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, rgba(var(--pf-emerald-rgb), 0.18), transparent 60%);
  pointer-events: none;
}

.pf-project__inner {
  position: relative;
  padding: 2.5rem;
  border-radius: var(--pf-radius);
  background: var(--pf-bg-2);
}

.pf-project__badge {
  display: inline-block;
  font-family: var(--pf-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pf-accent-2);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(var(--pf-emerald-rgb), 0.12);
  border: 1px solid rgba(var(--pf-emerald-rgb), 0.3);
  margin-bottom: 1rem;
}

.pf-project__title {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.pf-project__desc {
  margin: 0 0 1.5rem;
  color: var(--pf-muted);
  max-width: 65ch;
}

.pf-project__features {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
  display: grid;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .pf-project__features { grid-template-columns: 1fr 1fr; }
}

.pf-project__features li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--pf-muted);
  font-size: 0.95rem;
}
.pf-project__features li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--pf-accent);
}

.pf-store-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.pf-store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.1rem;
  border-radius: var(--pf-radius-sm);
  background: #000;
  border: 1px solid var(--pf-border);
  color: #fff;
  text-decoration: none;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.pf-store-badge:hover {
  transform: translateY(-3px) scale(1.02);
  border-color: rgba(var(--pf-accent-rgb), 0.45);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}
.pf-store-badge span {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.pf-store-badge small { font-size: 0.65rem; opacity: 0.75; }
.pf-store-badge strong { font-size: 0.95rem; font-weight: 600; }

/* Skills */
.pf-skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.pf-skill {
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  font-family: inherit;
  background: var(--pf-glass);
  border: 1px solid var(--pf-border);
  color: var(--pf-muted);
  animation: pf-fade-up 0.5s ease backwards;
  animation-delay: calc(var(--i, 0) * 0.05s);
  transition: color 0.2s, border-color 0.2s, background 0.2s, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: default;
}

.pf-skill--interactive {
  cursor: pointer;
}

.pf-skill--interactive:hover,
.pf-skill.is-active {
  color: var(--pf-text);
  border-color: rgba(var(--pf-accent-rgb), 0.45);
  background: rgba(var(--pf-accent-rgb), 0.12);
  transform: translateY(-3px) scale(1.04);
}

.pf-stack {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border-radius: var(--pf-radius);
  border: 1px dashed var(--pf-border);
  background: var(--pf-bg-3);
}

.pf-stack__label {
  margin: 0 0 1rem;
  font-family: var(--pf-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pf-dim);
}

.pf-stack__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pf-stack__pills code {
  font-family: var(--pf-mono);
  font-size: 0.82rem;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  background: rgba(var(--pf-accent-rgb), 0.1);
  color: var(--pf-accent);
  border: 1px solid rgba(var(--pf-accent-rgb), 0.22);
  transition: transform 0.2s, background 0.2s;
}
.pf-stack__pills code:hover {
  transform: translateY(-2px);
  background: rgba(var(--pf-accent-rgb), 0.18);
}

/* CTA */
.pf-cta {
  text-align: center;
  padding: 3rem 2rem;
  border-radius: var(--pf-radius);
  border: 1px solid var(--pf-border);
  background: linear-gradient(145deg, rgba(var(--pf-accent-rgb), 0.1), rgba(var(--pf-emerald-rgb), 0.08));
  box-shadow: var(--pf-glow);
}

.pf-cta h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.pf-cta p {
  margin: 0 auto 1.75rem;
  max-width: 50ch;
  color: var(--pf-muted);
}

.pf-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

/* Footer */
.pf-footer {
  border-top: 1px solid var(--pf-border);
  padding: 2rem 0;
  position: relative;
  z-index: 1;
}

.pf-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.88rem;
  color: var(--pf-dim);
}

.pf-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.pf-footer nav a {
  color: var(--pf-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.pf-footer nav a:hover { color: var(--pf-text); }

/* Scroll reveal */
.pf-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.pf-reveal.is-visible {
  opacity: 1;
  transform: none;
}
.pf-reveal--d2 { transition-delay: 0.12s; }

@keyframes pf-fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .pf-reveal { opacity: 1; transform: none; transition: none; }
  .pf-card__shine { animation: none; }
  .pf-cursor { animation: none; }
  .pf-kicker__dot { animation: none; }
  .pf-photo__glow { animation: none; }
  .pf-float { animation: none !important; }
  .pf-tilt, .pf-photo-wrap, .pf-terminal { transform: none !important; transition: none; }
  .pf-cursor-glow { display: none; }
}

@media (max-width: 899px) {
  .pf-photo__badge--top { right: 0; }
  .pf-photo__badge--bottom { left: 0; }
}