/* ============================================
   Display Miniatures – Dark Modern Theme
   ============================================ */

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

:root {
  --bg:       #0a0c0e;
  --bg2:      #111518;
  --bg3:      #171c20;
  --surface:  #1e2428;
  --border:   rgba(255,255,255,0.07);
  --text:     #e2e8e4;
  --muted:    #6b7f78;
  --accent:   #3e454d;
  --accent2:  #4d5a63;
  --green:    #3e6b5a;
  --green2:   #4d8570;
  --white:    #ffffff;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'DM Sans', system-ui, sans-serif;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 {
  font-family: 'DM Sans', 'Inter', system-ui, sans-serif;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* ---- NAV ---- */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2.5rem;
  height: 62px;
  background: rgba(10,12,14,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo img { height: 36px; width: auto; filter: invert(1) brightness(0.85); }
.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 4px;
}
.hamburger span { display: block; width: 22px; height: 1px; background: var(--text); transition: all 0.3s; }

.mobile-menu {
  display: none; position: fixed; inset: 0;
  background: var(--bg); z-index: 99;
  flex-direction: column; align-items: flex-start;
  justify-content: center; gap: 0; padding: 3rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  text-decoration: none; color: var(--text);
  font-size: 2rem; font-weight: 500;
  padding: 0.6rem 0; border-bottom: 1px solid var(--border);
  width: 100%; letter-spacing: -0.02em;
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--green2); }
.mobile-close {
  position: absolute; top: 1.5rem; right: 2rem;
  background: none; border: none; font-size: 1.8rem;
  cursor: pointer; color: var(--muted);
}

/* ---- PAGE HEADER ---- */
.page-header {
  padding: 9rem 2.5rem 4rem;
  border-bottom: 1px solid var(--border);
  max-width: 1200px;
  margin: 0 auto;
}
.breadcrumb {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.breadcrumb a { text-decoration: none; color: var(--muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb::before { content: ''; }
.page-header h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--white);
}
.page-header h1 em { font-style: normal; color: var(--green2); }
.page-header p { color: var(--muted); font-size: 1rem; max-width: 500px; }

/* ---- SECTION ---- */
.section { max-width: 1200px; margin: 0 auto; padding: 5rem 2.5rem; }
.section-label {
  font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--green2); margin-bottom: 0.8rem; font-weight: 500;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600; letter-spacing: -0.025em;
  color: var(--white); margin-bottom: 1rem;
}
.section-title em { font-style: normal; color: var(--green2); }
.section-sub { color: var(--muted); font-size: 0.95rem; max-width: 480px; margin-bottom: 3rem; }
.divider { width: 32px; height: 2px; background: var(--green); margin-bottom: 2rem; border-radius: 2px; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.8rem;
  font-family: inherit; font-size: 0.85rem; font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none; transition: all 0.22s;
  cursor: pointer; border: none; border-radius: 2px;
}
.btn-green { background: var(--green); color: var(--white); }
.btn-green:hover { background: var(--green2); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--green); color: var(--green2); }
.btn-surface { background: var(--surface); color: var(--text); }
.btn-surface:hover { background: var(--bg3); }

/* ---- CARDS ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent2); }

/* ---- FORM ELEMENTS ---- */
.form-label {
  display: block; font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 0.5rem;
}
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.75rem 1rem;
  font-family: inherit; font-size: 0.9rem; font-weight: 300;
  background: var(--bg2); border: 1px solid var(--border);
  color: var(--text); outline: none;
  transition: border-color 0.2s;
  border-radius: 2px; -webkit-appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--green); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--muted); }
.form-select option { background: var(--bg2); }
.form-textarea { resize: vertical; min-height: 110px; }
.form-group { margin-bottom: 1.2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ---- TAGS ---- */
.tag {
  display: inline-block; font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.22rem 0.7rem; border-radius: 2px;
}
.tag-default { background: var(--surface); color: var(--muted); border: 1px solid var(--border); }
.tag-green { background: rgba(62,107,90,0.2); color: var(--green2); border: 1px solid rgba(62,107,90,0.3); }
.tag-blue { background: rgba(62,69,77,0.4); color: #8ab0c0; border: 1px solid rgba(62,69,77,0.6); }

/* ---- SUCCESS MSG ---- */
.success-msg {
  display: none; padding: 1rem 1.2rem;
  background: rgba(62,107,90,0.1);
  border: 1px solid rgba(62,107,90,0.3);
  color: var(--green2); font-size: 0.85rem;
  border-radius: 2px; margin-bottom: 1.2rem;
}
.success-msg.show { display: block; }

/* ---- ANIMATIONS ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---- FOOTER ---- */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 2.5rem 2.5rem;
  display: flex; justify-content: space-between; align-items: center;
  gap: 2rem; flex-wrap: wrap;
}
.footer-logo img { height: 30px; filter: invert(1) brightness(0.7); }
.footer-links { display: flex; gap: 2rem; list-style: none; }
.footer-links a {
  text-decoration: none; color: var(--muted);
  font-size: 0.8rem; transition: color 0.2s;
}
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 0.75rem; color: var(--muted); }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  nav { padding: 0 1.5rem; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .page-header { padding: 7rem 1.5rem 3rem; }
  .section { padding: 3.5rem 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  footer { padding: 2rem 1.5rem; flex-direction: column; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
}