/* ============================================================
   davidfagan.co.uk — 2026 Redesign Stylesheet
   No framework, no build step. Pure CSS + custom properties.
   ============================================================ */

/* ─── Custom Properties ───────────────────────────────────── */
:root {
  --bg:            #06060d;
  --bg-2:          #0d0d1a;
  --bg-3:          #12121f;
  --surface:       rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --border:        rgba(159, 94, 194, 0.18);
  --border-bright: rgba(159, 94, 194, 0.45);

  --accent-1: #9f5ec2;   /* purple */
  --accent-2: #ff33cc;   /* magenta */
  --accent-3: #3e4094;   /* deep blue */

  --text:       #f0edf8;
  --text-muted: #a492d3;
  --text-dim:   rgba(240, 237, 248, 0.45);

  --grad:        linear-gradient(135deg, var(--accent-3), var(--accent-1), var(--accent-2));
  --grad-text:   linear-gradient(120deg, #c084fc, #ff33cc 60%, #a78bfa);

  --radius-sm:  8px;
  --radius:     16px;
  --radius-lg:  24px;

  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.7, 0, 0.84, 0);

  --nav-h: 68px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* ─── Utility ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
}

.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-1);
  margin-bottom: 0.75rem;
}

.section-heading {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent-1);
  transition: gap 0.2s var(--ease-out);
}

.link-arrow::after {
  content: '→';
  transition: transform 0.2s var(--ease-out);
}

.link-arrow:hover { gap: 0.65em; }
.link-arrow:hover::after { transform: translateX(3px); }

/* ─── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.8rem 1.75rem;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.25s var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 0 30px rgba(159, 94, 194, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 45px rgba(159, 94, 194, 0.5);
}

.btn--ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  background: var(--surface-hover);
  border-color: var(--border-bright);
  transform: translateY(-2px);
}

.btn--full { width: 100%; }

/* ─── Nav ─────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.nav.scrolled {
  background: rgba(6, 6, 13, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text);
  flex-shrink: 0;
}

.nav__logo-dot {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--grad);
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav__links a:hover { color: var(--text); }

.nav__cta {
  padding: 0.55rem 1.25rem !important;
  border-radius: 100px !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  transition: all 0.2s var(--ease-out) !important;
}

.nav__cta:hover {
  background: var(--surface-hover) !important;
  border-color: var(--border-bright) !important;
}

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
}

.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Hero ────────────────────────────────────────────────── */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  /* inset: -20% gives the bg room to scale to 1.6 without showing edges.
   * At scale 1.6: the visible area is viewport / 1.6 = 62.5% of the bg.
   * With -20% inset the bg is 140% of viewport — plenty of room.           */
  inset: -20%;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(62, 64, 148, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 55% 50% at 20% 75%, rgba(149, 61, 117, 0.45) 0%, transparent 55%),
    radial-gradient(ellipse 40% 40% at 90% 85%, rgba(255, 51, 204, 0.18) 0%, transparent 50%),
    var(--bg);
  transform-origin: center center;
  /* will-change tells the GPU to promote this to its own compositing layer.
   * Critical for smooth 60fps zoom during scroll.                          */
  will-change: transform;
}

/* Subtle grid overlay */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(159, 94, 194, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(159, 94, 194, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
  padding-top: var(--nav-h);
}

.hero__eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero__heading {
  font-size: clamp(3.5rem, 10vw, 7.5rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.045em;
  margin-bottom: 2rem;
}

.hero__heading span {
  display: block;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 500px;
  line-height: 1.65;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  z-index: 2;
}

.hero__scroll span {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-1), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.1); }
}

/* ─── About ───────────────────────────────────────────────── */
.about {
  background: var(--bg-2);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.about__body {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.about__visual {
  display: flex;
  justify-content: center;
}

.about__img-wrap {
  position: relative;
  width: clamp(220px, 35vw, 380px);
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.about__img-glow {
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 60px rgba(159, 94, 194, 0.25);
  border-radius: inherit;
  border: 1px solid var(--border);
  pointer-events: none;
}

/* ─── Services ────────────────────────────────────────────── */
.services {
  background: var(--bg);
}

.services__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
}

.services__sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.service-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all 0.3s var(--ease-out);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(159, 94, 194, 0.08) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}

.service-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-5px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(159, 94, 194, 0.12);
}

.service-card:hover::before { opacity: 1; }

.service-card--soon {
  opacity: 0.7;
  cursor: default;
}

.service-card--soon:hover { transform: none; box-shadow: none; }

.service-card__icon {
  color: var(--accent-1);
  flex-shrink: 0;
}

.service-card__badge {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25em 0.7em;
  border-radius: 100px;
  background: rgba(255, 51, 204, 0.15);
  border: 1px solid rgba(255, 51, 204, 0.35);
  color: var(--accent-2);
}

.service-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.service-card__body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}

.service-card__cta {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-1);
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  transition: gap 0.2s;
  margin-top: auto;
}

.service-card__cta:hover { gap: 0.55em; }

.service-card__cta--disabled {
  color: var(--text-dim);
  cursor: default;
}

/* ─── Work / Portfolio ────────────────────────────────────── */
.work {
  background: var(--bg-2);
}

.work .container { margin-bottom: 3rem; }

.work__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.work-item {
  position: relative;
  display: block;
  overflow: hidden;
}

.work-item__img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.work-item__img-wrap img {
  width: 100%;
  /* BEFORE: height: 100% — no room to shift, parallax was hitting edges
   * AFTER : height: 120% — 20% headroom lets GSAP shift yPercent: -18
   *         without exposing the container edge. Position stays centred.    */
  height: 120%;
  object-fit: cover;
  object-position: center 25%;
  /* Removed: transition: transform — GSAP owns the transform for parallax.
   * CSS hover scale on this element would be overridden by GSAP inline styles.
   * Hover feedback is provided via filter and wrapper scale instead.        */
  transition: filter 0.5s var(--ease-out);
  filter: brightness(0.75) saturate(0.9);
  will-change: transform;
}

/* Hover: scale the WRAPPER (not the img) so GSAP parallax is unaffected */
.work-item:hover .work-item__img-wrap {
  transform: scale(1.03);
  transition: transform 0.6s var(--ease-out);
}

.work-item:hover .work-item__img-wrap img {
  filter: brightness(0.88) saturate(1.15);
}

.work-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 6, 13, 0.8) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s;
}

.work-item__overlay span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.work-item:hover .work-item__overlay { opacity: 1; }

.work-item__meta {
  padding: 1.25rem 1.5rem;
  background: var(--bg-3);
  border-top: 1px solid var(--border);
}

.work-item__label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-1);
  display: block;
  margin-bottom: 0.3rem;
}

.work-item__meta h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

/* ─── Book ────────────────────────────────────────────────── */
.book {
  background: var(--bg);
}

.book__header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
}

.book__sub {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.book__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

/* Cal.com placeholder — replace with real embed */
.book__calendar-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cal-placeholder__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-muted);
}

.cal-placeholder__inner svg { color: var(--accent-1); opacity: 0.7; }
.cal-placeholder__inner p { font-weight: 600; font-size: 1.05rem; color: var(--text); }
.cal-placeholder__inner span { font-size: 0.875rem; color: var(--text-dim); }

.book__form-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.book__form-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* ─── Contact ─────────────────────────────────────────────── */
.contact {
  background: var(--bg-2);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}

.contact__body {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.contact__link:hover { color: var(--text); }

.contact__link svg { color: var(--accent-1); flex-shrink: 0; }

/* ─── Forms (shared) ──────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.1rem;
}

.form-group--half {
  flex-direction: row;
  gap: 1rem;
}

.form-group--half > div {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

input,
select,
textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-dim);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(159, 94, 194, 0.15);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a492d3' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

select option {
  background: var(--bg-3);
  color: var(--text);
}

textarea { resize: vertical; min-height: 120px; }

input[type="date"] {
  color-scheme: dark;
}

.form-success {
  display: none;
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(159, 94, 194, 0.12);
  border: 1px solid var(--border-bright);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 0.75rem;
}

.form-success.visible { display: block; }

/* ─── Footer ──────────────────────────────────────────────── */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__name {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.footer__copy {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer__links a:hover { color: var(--text); }

/* ─── Scroll Reveal ───────────────────────────────────────── */
/* Initial states — GSAP animates FROM these TO opacity:1, y/x:0, scale:1
 *
 * BEFORE: translateY(40px), no scale
 * AFTER : translateY(60px) scale(0.92) — the scale is the Apple trick.
 *         Elements arrive from slightly smaller, making them feel like they
 *         "grow into place" rather than just sliding in.
 *
 * will-change hints to the GPU: these elements will be transformed soon.
 */
.reveal-up {
  opacity: 0;
  transform: translateY(60px) scale(0.92);
  will-change: transform, opacity;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px) scale(0.96);
  will-change: transform, opacity;
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px) scale(0.96);
  will-change: transform, opacity;
}

/* Fallback for no-JS or reduced-motion: show everything immediately */
@media (prefers-reduced-motion: reduce) {
  .reveal-up,
  .reveal-left,
  .reveal-right { opacity: 1 !important; transform: none !important; }
}

/* ─── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .about__grid    { grid-template-columns: 1fr; }
  .about__visual  { order: -1; }
  .book__grid     { grid-template-columns: 1fr; }
  .contact__grid  { grid-template-columns: 1fr; }
  .work__grid     { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: rgba(6, 6, 13, 0.97);
    backdrop-filter: blur(20px);
    padding: 2rem clamp(1.25rem, 5vw, 3rem);
    border-top: 1px solid var(--border);
  }
  .nav__links.open li { width: 100%; border-bottom: 1px solid var(--border); }
  .nav__links.open a  { display: block; padding: 1rem 0; font-size: 1.25rem; }
  .nav__links.open .nav__cta {
    display: inline-flex;
    margin-top: 1rem;
    border: 1px solid var(--border) !important;
    padding: 0.75rem 1.5rem !important;
  }
  .nav__toggle { display: flex; }
}

@media (max-width: 640px) {
  .services__grid { grid-template-columns: 1fr; }
  .work__grid     { grid-template-columns: 1fr; }
  .form-group--half { flex-direction: column; }
  .footer__inner  { flex-direction: column; align-items: flex-start; }
}