/* ===================================================================
   Chyo Photography — stylesheet
   =================================================================== */

:root{
  --bg:            #faf9f6;
  --bg-alt:        #f2f0e9;
  --surface:       #ffffff;
  --surface-2:     #f4f2ec;
  --text:          #1c1e1b;
  --text-dim:      #52544d;
  --text-faint:    #8a8c84;
  --accent:        #3f5941;
  --accent-dim:    #2c4030;
  --accent-rgb:    63,89,65;
  --on-accent:     #fbfaf6;
  --border:        rgba(23,23,26,0.12);
  --border-soft:   rgba(23,23,26,0.07);
  --font-display:  'Cormorant Garamond', Georgia, serif;
  --font-body:     'Jost', 'Segoe UI', sans-serif;
  --maxw:          1200px;
  --radius:        2px;
  --ease:          cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark){
  :root{
    --bg:          #0c0f0c;
    --bg-alt:      #12150f;
    --surface:     #171a15;
    --surface-2:   #1e221b;
    --text:        #f2efe9;
    --text-dim:    #b9b6b0;
    --text-faint:  #7c7a76;
    --accent:      #93b189;
    --accent-dim:  #5f7a5e;
    --accent-rgb:  147,177,137;
    --on-accent:   #0c0f0c;
    --border:      rgba(242,239,233,0.12);
    --border-soft: rgba(242,239,233,0.07);
  }
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-weight:300;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3{
  font-family:var(--font-display);
  font-weight:500;
  letter-spacing:.01em;
  margin:0;
}
p{ margin:0 0 1em; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
button{ font-family:inherit; cursor:pointer; }
::selection{ background:var(--accent); color:var(--on-accent); }

.eyebrow{
  font-family:var(--font-body);
  font-size:.72rem;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:.9em;
  font-weight:400;
}

/* ---------- Loader ---------- */
#loader{
  position:fixed; inset:0; z-index:9999;
  background:var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition:opacity .6s var(--ease), visibility .6s var(--ease);
}
#loader span{
  font-family:var(--font-display);
  letter-spacing:.35em;
  font-size:.85rem;
  color:var(--accent);
  opacity:0;
  animation:loaderFade 1.2s var(--ease) forwards;
}
@keyframes loaderFade{ to{ opacity:1; } }
#loader.hidden{ opacity:0; visibility:hidden; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.6em;
  padding:.95em 2.1em;
  font-size:.78rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  border-radius:var(--radius);
  border:1px solid var(--text);
  transition:background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease), transform .2s var(--ease);
  white-space:nowrap;
}
.btn-outline{ background:transparent; color:var(--text); }
.btn-outline:hover{ background:var(--text); color:var(--bg); }
.btn-solid{ background:var(--text); color:var(--bg); border-color:var(--text); }
.btn-solid:hover{ background:var(--accent); border-color:var(--accent); color:var(--on-accent); }
.btn:active{ transform:scale(.97); }

/* ---------- Header ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:500;
  padding:22px 0;
  transition:background .4s var(--ease), padding .4s var(--ease), border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(250,249,246,0.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:14px 0;
  border-bottom:1px solid var(--border-soft);
}
@media (prefers-color-scheme: dark){
  .site-header.scrolled{ background:rgba(10,12,10,0.82); }
}
.nav-wrap{
  max-width:var(--maxw); margin:0 auto; padding:0 32px;
  display:flex; align-items:center; justify-content:space-between;
}
.logo{
  font-family:var(--font-display);
  font-size:1.5rem;
  letter-spacing:.04em;
}
.logo span{ color:var(--accent); }
.nav-links{ display:flex; gap:2.6em; }
.nav-links a{
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  position:relative;
  padding-bottom:4px;
}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:0; width:0; height:1px;
  background:var(--accent); transition:width .35s var(--ease);
}
.nav-links a:hover::after{ width:100%; }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:32px; height:32px; background:none; border:none; padding:0;
}
.nav-toggle span{
  display:block; height:1px; width:100%; background:var(--text);
  transition:transform .35s var(--ease), opacity .35s var(--ease);
}
.nav-toggle.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex; align-items:center; justify-content:center;
  text-align:center;
  overflow:hidden;
  padding:0 24px;
}
.hero-bg{
  position:absolute; inset:0; z-index:0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(var(--accent-rgb),0.16), transparent 55%),
    linear-gradient(180deg, rgba(8,10,8,0.55) 0%, rgba(8,10,8,0.32) 45%, rgba(8,10,8,0.75) 100%),
    url('../images/landscape/DSC08844-6.jpg');
  background-size: cover;
  background-position: center 65%;
}
.hero-content{ position:relative; z-index:1; max-width:720px; }
.hero-content .eyebrow{ color:#bcd6b4; }
.hero h1{
  font-size:clamp(2.6rem, 6.5vw, 4.6rem);
  line-height:1.08;
  margin-bottom:.4em;
  color:#faf9f6;
}
.hero-sub{
  color:rgba(250,249,246,0.82);
  font-size:.95rem;
  letter-spacing:.05em;
  margin-bottom:2.2em;
}
.hero .btn-outline{ border-color:#faf9f6; color:#faf9f6; }
.hero .btn-outline:hover{ background:#faf9f6; color:#1c1e1b; }
.scroll-cue{
  position:absolute; bottom:34px; left:50%; transform:translateX(-50%);
  z-index:1;
}
.scroll-cue span{
  display:block; width:1px; height:52px;
  background:linear-gradient(#bcd6b4, transparent);
  animation:scrollCue 2.2s ease-in-out infinite;
}
@keyframes scrollCue{
  0%{ transform:scaleY(0); transform-origin:top; }
  50%{ transform:scaleY(1); transform-origin:top; }
  50.1%{ transform-origin:bottom; }
  100%{ transform:scaleY(0); transform-origin:bottom; }
}

/* ---------- Section shell ---------- */
section{ padding:130px 32px; max-width:var(--maxw); margin:0 auto; }
.section-head{ text-align:center; max-width:640px; margin:0 auto 3.5em; }
.section-head h2{ font-size:clamp(2rem, 4vw, 2.8rem); }
.contact-sub{ color:var(--text-dim); margin-top:.8em; }

/* ---------- Filters ---------- */
.filters{
  display:flex; flex-wrap:wrap; justify-content:center; gap:.6em;
  margin-bottom:3em;
}
.filter-btn{
  background:transparent;
  border:1px solid var(--border);
  color:var(--text-dim);
  padding:.6em 1.4em;
  font-size:.72rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  border-radius:999px;
  transition:all .3s var(--ease);
}
.filter-btn:hover{ border-color:var(--accent); color:var(--text); }
.filter-btn.active{ background:var(--text); border-color:var(--text); color:var(--bg); }

/* ---------- Gallery ---------- */
.gallery{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));
  gap:22px;
}
.gallery-item{
  position:relative;
  aspect-ratio:4/5;
  border-radius:var(--radius);
  overflow:hidden;
  cursor:pointer;
  background:var(--surface);
  opacity:0; transform:translateY(24px);
  transition:opacity .55s var(--ease), transform .55s var(--ease);
}
.gallery-item.show{ opacity:1; transform:translateY(0); }
.gallery-item.hide{ display:none; }
.gallery-item img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .6s var(--ease);
}
.gallery-item:hover img{ transform:scale(1.06); }

.placeholder-tile{
  width:100%; height:100%;
  display:flex; align-items:center; justify-content:center;
  text-align:center;
  padding:1.5em;
  background:
    linear-gradient(150deg, var(--surface) 0%, var(--surface-2) 100%);
  border:1px dashed var(--border);
  color:var(--text-faint);
  font-size:.78rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  position:relative;
}
.placeholder-tile::before{
  content:'◇';
  display:block;
  font-size:1.6rem;
  color:var(--accent-dim);
  margin-bottom:.6em;
}
.placeholder-tile::after{
  content:attr(data-placeholder);
}
.placeholder-tile > *{ display:none; }

.item-caption{
  position:absolute; left:0; right:0; bottom:0;
  padding:1.6em 1.2em 1em;
  background:linear-gradient(to top, rgba(0,0,0,0.75), transparent);
  color:#f2efe9;
  opacity:0; transform:translateY(8px);
  transition:opacity .35s var(--ease), transform .35s var(--ease);
}
.gallery-item:hover .item-caption{ opacity:1; transform:translateY(0); }
.item-caption .cat{
  display:block; font-size:.65rem; letter-spacing:.14em; text-transform:uppercase; color:#bcd6b4; margin-bottom:.2em;
}
.item-caption .title{ font-family:var(--font-display); font-size:1.15rem; }

/* ---------- Quote ---------- */
.quote-section{
  padding:20px 32px 100px;
  max-width:760px;
}
.quote{
  margin:0;
  text-align:center;
}
.quote p{
  font-family:var(--font-display);
  font-style:italic;
  font-weight:500;
  font-size:clamp(1.3rem, 2.6vw, 1.7rem);
  line-height:1.5;
  color:var(--text-dim);
  margin:0 0 .7em;
}
.quote p::before,
.quote p::after{ color:var(--accent); }
.quote cite{
  display:block;
  font-style:normal;
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
}

/* ---------- About ---------- */
.about{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:70px;
  align-items:center;
}
.about-media .placeholder-tile{ aspect-ratio:4/5; border-radius:var(--radius); }
.about-text h2{ font-size:clamp(2rem, 4vw, 2.6rem); margin-bottom:.5em; }
.about-text h2 .nickname{
  font-size:.45em;
  font-style:italic;
  font-weight:400;
  color:var(--text-faint);
  letter-spacing:.01em;
}
.about-text p{ color:var(--text-dim); }
.about-text .btn{ margin-top:1em; }

/* ---------- Contact ---------- */
.contact-wrap{
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:60px;
  align-items:start;
}
.contact-form{
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  padding:40px;
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.field{ margin-bottom:22px; }
.field label{
  display:block; font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--text-dim); margin-bottom:.6em;
}
.field .opt{ text-transform:none; letter-spacing:0; color:var(--text-faint); }
.field input, .field select, .field textarea{
  width:100%;
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:var(--radius);
  color:var(--text);
  font-family:var(--font-body);
  font-size:.95rem;
  padding:.85em 1em;
  transition:border-color .3s var(--ease);
}
.field textarea{ resize:vertical; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--accent);
}
.btn-submit{ width:100%; margin-top:6px; position:relative; }
.btn-spinner{
  display:none; width:14px; height:14px; border-radius:50%;
  border:2px solid rgba(255,255,255,0.3); border-top-color:currentColor;
  animation:spin .7s linear infinite;
}
.btn-submit.loading .btn-text{ opacity:.5; }
.btn-submit.loading .btn-spinner{ display:inline-block; }
@keyframes spin{ to{ transform:rotate(360deg); } }
.form-status{
  margin:16px 0 0; font-size:.85rem; min-height:1.2em;
}
.form-status.ok{ color:#8fbf8f; }
.form-status.err{ color:#d98080; }

.contact-info{ padding-top:6px; }
.info-block{ margin-bottom:2.2em; }
.info-block h3{
  font-size:.72rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--accent); font-family:var(--font-body); font-weight:400; margin-bottom:.5em;
}
.info-block a{ font-size:1.05rem; border-bottom:1px solid var(--border); transition:border-color .3s var(--ease); }
.info-block a:hover{ border-color:var(--accent); }
.info-block p{ color:var(--text-dim); margin:0; }

/* ---------- Lightbox ---------- */
.lightbox{
  position:fixed; inset:0; z-index:2000;
  background:rgba(6,6,7,0.94);
  display:none; align-items:center; justify-content:center;
  padding:60px 90px;
}
.lightbox.open{ display:flex; }
.lightbox-content{ max-width:900px; max-height:80vh; width:100%; }
.lightbox-content .placeholder-tile{ aspect-ratio:4/5; margin:0 auto; max-width:640px; }
.lightbox-content img{ width:100%; height:auto; max-height:80vh; object-fit:contain; margin:0 auto; }
.lightbox-close{
  position:absolute; top:24px; right:32px;
  background:none; border:none; color:#f2efe9; font-size:2rem; line-height:1;
}
.lightbox-nav{
  position:absolute; top:50%; transform:translateY(-50%);
  background:none; border:none; color:#f2efe9; font-size:2.6rem; opacity:.75;
  transition:opacity .25s;
}
.lightbox-nav:hover{ opacity:1; }
.lightbox-prev{ left:24px; }
.lightbox-next{ right:24px; }

/* ---------- Footer ---------- */
.site-footer{
  text-align:center;
  padding:34px 24px;
  border-top:1px solid var(--border-soft);
  color:var(--text-faint);
  font-size:.78rem;
  letter-spacing:.04em;
}

/* ---------- Reveal on scroll ---------- */
[data-reveal]{
  opacity:0; transform:translateY(28px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal].in-view{ opacity:1; transform:translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .about{ grid-template-columns:1fr; gap:40px; }
  .contact-wrap{ grid-template-columns:1fr; }
  section{ padding:90px 24px; }
}
@media (max-width:720px){
  .nav-links{
    position:fixed; top:0; right:0; height:100vh; width:min(78vw,320px);
    background:var(--bg-alt);
    flex-direction:column; align-items:flex-start;
    padding:110px 40px 40px;
    gap:1.8em;
    transform:translateX(100%);
    transition:transform .45s var(--ease);
    border-left:1px solid var(--border-soft);
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ font-size:.95rem; }
  .nav-toggle{ display:flex; }
  .form-row{ grid-template-columns:1fr; }
  .contact-form{ padding:26px; }
  .lightbox{ padding:70px 20px; }
  .lightbox-nav{ font-size:2rem; }
}