/* ==========================================================================
   Corinna Frankel Photography — Design Tokens & Base Styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600;1,700&display=swap');

:root {
  /* Color */
  --ink: #141414;
  --ink-soft: #3a3a3a;
  --cream: #f7f5f0;
  --cream-deep: #efece4;
  --black: #0a0a0a;
  --white: #fafaf8;
  --muted: #7a7772;
  --border: rgba(20, 20, 20, 0.12);
  --border-on-dark: rgba(250, 250, 248, 0.25);

  /* Type */
  --font-display: 'Noto Serif', 'Times New Roman', serif;
  --font-body: 'Noto Serif', 'Times New Roman', serif;
  --font-ui: 'Noto Serif', 'Times New Roman', serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
  --space-7: 9rem;

  /* Layout */
  --container-max: 1400px;
  --header-h: 88px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 200ms;
  --dur-med: 350ms;
  --dur-slow: 600ms;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

html, body {
  overflow-x: hidden;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  opacity: 0;
  transition: opacity 700ms var(--ease-out);
}

body.is-ready {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  body {
    opacity: 1;
    transition: none;
  }
}

::selection {
  background: var(--ink);
  color: var(--cream);
}

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

figure {
  margin: 0;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  margin: 0;
}

p {
  margin: 0;
}

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

/* Skip link */
.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -100px;
  background: var(--ink);
  color: var(--white);
  padding: var(--space-1) var(--space-2);
  z-index: 1000;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus {
  top: var(--space-2);
}

/* Focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}
.hero :focus-visible,
.site-header--on-dark :focus-visible {
  outline-color: var(--white);
}

/* ==========================================================================
   Film grain texture overlay
   ========================================================================== */

.grain {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ==========================================================================
   Site header — persistent, logo left / nav right
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 var(--space-4);
  transition: background var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
}

.site-header--on-dark {
  color: var(--white);
}

.site-header--solid {
  background: var(--cream);
  border-bottom: 1px solid var(--border);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  min-height: 44px;
}

.logo-mark {
  width: 144px;
  height: auto;
  color: currentColor;
  transition: opacity var(--dur-fast) var(--ease-out), filter var(--dur-med) var(--ease-out);
}

.logo-link:hover .logo-mark {
  opacity: 0.7;
}

/* Logo artwork is white-on-transparent (built for the dark hero); invert it
   to read as dark ink once the header goes solid/light. */
.site-header--solid .logo-mark {
  filter: invert(1);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.main-nav a {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: var(--space-1) 0;
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transform-origin: center;
  transition: transform var(--dur-fast) var(--ease-spring);
}

.main-nav a:hover {
  transform: scale(1.12);
}

.main-nav a[aria-current='page']::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 1px;
  background: currentColor;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: currentColor;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  display: block;
  width: 22px;
  height: 1px;
  background: currentColor;
  position: relative;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}
.nav-toggle span::before {
  position: absolute;
  top: -7px;
}
.nav-toggle span::after {
  position: absolute;
  top: 7px;
}

.nav-toggle[aria-expanded='true'] span {
  background: transparent;
}
.nav-toggle[aria-expanded='true'] span::before {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded='true'] span::after {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 760px) {
  .site-header {
    padding: 0 var(--space-3);
  }
  .nav-toggle {
    display: inline-flex;
  }
  .main-nav {
    position: fixed;
    inset: 0;
    top: var(--header-h);
    background: var(--black);
    color: var(--white);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-4);
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease-out);
  }
  .main-nav[data-open='true'] {
    transform: translateX(0);
  }
  .main-nav a {
    font-size: 1.1rem;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  overflow: hidden;
  background: var(--black);
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
  animation: ken-burns 26s ease-in-out infinite alternate;
  transform-origin: 50% 42%;
}

@keyframes ken-burns {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.15) 40%, rgba(0,0,0,0.45) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 var(--space-3);
  animation: hero-rise 1.2s var(--ease-out) 250ms both;
}

@keyframes hero-rise {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2.75rem, 8vw, 6.5rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.hero-subtitle {
  margin-top: var(--space-2);
  font-family: var(--font-body);
  font-style: italic;
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  letter-spacing: 0.03em;
  color: rgba(250, 250, 248, 0.85);
}

.scroll-cue {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 1px;
  height: 48px;
  background: var(--border-on-dark);
  overflow: hidden;
}

.scroll-cue::after {
  content: '';
  position: absolute;
  left: 0;
  top: -100%;
  width: 100%;
  height: 100%;
  background: var(--white);
  animation: scroll-cue-fall 2.2s var(--ease-out) infinite;
}

@keyframes scroll-cue-fall {
  0% { top: -100%; }
  60% { top: 100%; }
  100% { top: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-cue::after {
    animation: none;
    top: 0;
  }
}

/* ==========================================================================
   Teaser images (home page, between bio)
   ========================================================================== */

.teaser {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.teaser img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transform: scale(1.09);
  transition: transform 1.4s var(--ease-out);
}

.teaser.is-visible img {
  transform: scale(1);
}

.teaser:hover img {
  transform: scale(1.04);
}

/* ==========================================================================
   Bio / Philosophy section
   ========================================================================== */

.bio {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-3);
  text-align: left;
}

.bio p {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.7;
  color: var(--ink-soft);
}

.bio p + p {
  margin-top: var(--space-3);
}

/* ==========================================================================
   Image placeholder (swap for real <img> when photography is supplied)
   ========================================================================== */

.img-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-linear-gradient(135deg, rgba(20,20,20,0.05) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, #d8d5cd, #bdb9ae);
  color: var(--ink-soft);
}

.img-placeholder__label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  padding: var(--space-1) var(--space-2);
  background: rgba(247, 245, 240, 0.7);
  backdrop-filter: blur(2px);
  text-align: center;
}

/* Hero placeholder: darker (previews a moody photo) + label tucked in a
   corner so it never collides with the overlaid title */
.img-placeholder--hero {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background:
    repeating-linear-gradient(135deg, rgba(0,0,0,0.08) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, #4a4a48, #171716);
  align-items: flex-end;
  justify-content: flex-start;
  padding: var(--space-3);
}

.img-placeholder--hero .img-placeholder__label {
  background: rgba(10, 10, 10, 0.55);
  border-color: var(--border-on-dark);
  color: var(--white);
}

/* ==========================================================================
   Gallery (Works page)
   ========================================================================== */

.gallery-header {
  padding: calc(var(--header-h) + var(--space-5)) var(--space-4) var(--space-4);
  text-align: center;
}

.gallery-header h1 {
  font-style: italic;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.filter-btn {
  background: none;
  border: none;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: var(--space-1) 0;
  min-height: 44px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.filter-btn:hover {
  color: var(--ink);
}

.filter-btn[aria-pressed='true'] {
  color: var(--ink);
  border-color: var(--ink);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  padding: 0 4px var(--space-6);
}

@media (min-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery-item {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: none;
  border: none;
  padding: 0;
  width: 100%;
  display: block;
  box-shadow: 0 0 0 0 rgba(20, 20, 20, 0);
  transition: box-shadow 450ms var(--ease-out);
}

.gallery-item:hover,
.gallery-item:focus-visible {
  box-shadow: 0 22px 44px -16px rgba(20, 20, 20, 0.4);
  z-index: 1;
}

.gallery-item picture {
  display: block;
  width: 100%;
  height: 100%;
}

.gallery-item img,
.gallery-item .img-placeholder {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.gallery-item img,
.gallery-item .img-placeholder {
  filter: grayscale(1);
  transition: opacity var(--dur-fast) var(--ease-out), transform 900ms var(--ease-out);
}

.gallery-item:hover img,
.gallery-item:focus-visible img {
  transform: scale(1.045);
}

.gallery-item[data-reveal] {
  transition-delay: var(--reveal-delay, 0ms);
}

.gallery-item.is-hidden {
  display: none;
}

/* Exception: this item keeps its natural (uncropped) proportions */
.gallery-item--natural {
  aspect-ratio: auto;
}

.gallery-item--natural picture,
.gallery-item--natural img {
  height: auto;
  object-fit: initial;
}

.gallery-item__caption {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.gallery-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.55) 100%);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.gallery-item:hover::before,
.gallery-item:focus-visible::before {
  opacity: 1;
}

.gallery-item:hover .gallery-item__caption,
.gallery-item:focus-visible .gallery-item__caption {
  opacity: 1;
}

/* ==========================================================================
   Lightbox
   ========================================================================== */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 10, 0.94);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease-out), visibility 0s linear var(--dur-med);
}

.lightbox[data-open='true'] {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity var(--dur-med) var(--ease-out), visibility 0s linear 0s;
}

.lightbox[data-open='true'] .lightbox-figure {
  transform: scale(1);
}

.lightbox-figure {
  position: relative;
  max-width: min(90vw, 1200px);
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.94);
  transition: transform var(--dur-med) var(--ease-spring);
  gap: var(--space-2);
}

.lightbox-figure img,
.lightbox-figure .img-placeholder {
  max-width: 100%;
  max-height: 75vh;
  width: auto;
  filter: grayscale(1);
  transition: opacity 220ms var(--ease-out);
}

.lightbox-caption {
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.8;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: none;
  border: none;
  color: var(--white);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.85;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-spring);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  opacity: 1;
}

.lightbox-close:hover {
  transform: scale(1.15);
}

.lightbox-prev:hover,
.lightbox-next:hover {
  transform: translateY(-50%) scale(1.15);
}

.lightbox-close {
  top: var(--space-3);
  right: var(--space-3);
}

.lightbox-prev {
  left: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 760px) {
  .lightbox-prev,
  .lightbox-next {
    top: auto;
    bottom: var(--space-2);
    transform: none;
  }
  .lightbox-prev:hover,
  .lightbox-next:hover {
    transform: scale(1.15);
  }
  .lightbox-prev { left: var(--space-2); }
  .lightbox-next { right: var(--space-2); }
}

/* ==========================================================================
   Contact page — minimalist
   ========================================================================== */

.contact-main {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + var(--space-4)) var(--space-3) var(--space-5);
  position: relative;
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.contact-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
  opacity: 0.75;
  animation: ken-burns 32s ease-in-out infinite alternate;
  transform-origin: 50% 60%;
}

.contact-block {
  position: relative;
  z-index: 1;
  max-width: 520px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-block h1 {
  font-style: italic;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  margin-bottom: var(--space-4);
}

.contact-line {
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: var(--ink);
}

.contact-email {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin-top: var(--space-2);
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  overflow-wrap: break-word;
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.contact-email:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.contact-cta {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: var(--space-4);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--ink);
  font-family: var(--font-body);
  font-size: 1.15rem;
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-spring);
}

.contact-cta:hover {
  background: var(--ink);
  color: var(--cream);
  transform: scale(1.05);
}

.contact-portrait {
  width: 210px;
  margin-top: var(--space-5);
}

.contact-portrait img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(1);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: var(--space-4) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  border-top: 1px solid var(--border);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--ink);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-instagram {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  margin: -10px;
  color: inherit;
  opacity: 0.85;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-spring);
}

.footer-instagram svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.footer-instagram:hover {
  opacity: 1;
  transform: scale(1.15);
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Container helper */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
}

/* ==========================================================================
   Custom "View" cursor (desktop gallery hover only)
   ========================================================================== */

.cursor-view {
  position: fixed;
  top: 0;
  left: 0;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: var(--white);
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  pointer-events: none;
  z-index: 300;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.5);
  transition: opacity 250ms var(--ease-out), transform 450ms var(--ease-spring);
  mix-blend-mode: difference;
  will-change: transform;
}

.cursor-view.is-active {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

@media (hover: none), (pointer: coarse) {
  .cursor-view {
    display: none;
  }
}