/* ==========================================================
   KAWSHIK.DEV — shared secondary-page system
   Used by About, Contact, Directory, Blog, and legal pages.
   ========================================================== */

:root {
  --bg: #071018;
  --bg-deep: #04090e;
  --surface: #0d1b27;
  --surface-soft: rgba(13, 27, 39, 0.76);
  --surface-raised: #122434;
  --text-color: #f2f7fa;
  --text-secondary: #92a7b5;
  --muted-strong: #b6c6d0;
  --primary: #55e6d3;
  --secondary: #4ca7ff;
  --violet: #a88bff;
  --card-border: rgba(169, 212, 232, 0.14);
  --line-strong: rgba(169, 212, 232, 0.28);
  --gradient: linear-gradient(120deg, var(--primary), var(--secondary) 52%, var(--violet));
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.34);
  --radius: 20px;
  --radius-lg: 32px;
  --shell: min(1120px, calc(100vw - 40px));
  --font: "Avenir Next", "Segoe UI Variable", "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

body.light-mode,
html[data-theme="light"] {
  --bg: #edf5f7;
  --bg-deep: #dce9ed;
  --surface: #f9fcfd;
  --surface-soft: rgba(255, 255, 255, 0.78);
  --surface-raised: #fff;
  --text-color: #0b1e2b;
  --text-secondary: #4c6777;
  --muted-strong: #284555;
  --primary: #007f75;
  --secondary: #176fd1;
  --violet: #7152d8;
  --card-border: rgba(10, 42, 60, 0.13);
  --line-strong: rgba(10, 42, 60, 0.25);
  --shadow: 0 28px 90px rgba(40, 75, 92, 0.13);
}

html[data-theme="light"] body {
  background:
    radial-gradient(circle at 9% 8%, color-mix(in srgb, var(--secondary) 10%, transparent), transparent 28rem),
    radial-gradient(circle at 92% 45%, color-mix(in srgb, var(--violet) 7%, transparent), transparent 32rem),
    var(--bg);
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) var(--bg-deep);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 9% 8%, color-mix(in srgb, var(--secondary) 10%, transparent), transparent 28rem),
    radial-gradient(circle at 92% 45%, color-mix(in srgb, var(--violet) 7%, transparent), transparent 32rem),
    var(--bg);
  color: var(--text-color);
  font-family: var(--font);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background-image:
    linear-gradient(var(--card-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--card-border) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 55%);
  opacity: 0.22;
  pointer-events: none;
}

body::-webkit-scrollbar { width: 8px; }
body::-webkit-scrollbar-track { background: var(--bg-deep); }
body::-webkit-scrollbar-thumb {
  border: 2px solid var(--bg-deep);
  border-radius: 99px;
  background: var(--gradient);
}

::selection {
  background: color-mix(in srgb, var(--primary) 35%, transparent);
}

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

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

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
}

.page-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 2000;
  height: 2px;
  pointer-events: none;
}

.page-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--gradient);
  box-shadow: 0 0 15px var(--primary);
}

/* Header */
#main-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: 76px;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease;
}

#main-header.scrolled {
  border-color: var(--card-border);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(18px);
}

.header-container {
  display: flex;
  width: min(1240px, calc(100vw - 40px));
  height: 100%;
  align-items: center;
  justify-content: space-between;
  margin-inline: auto;
}

.brand-container {
  display: flex;
  align-items: center;
  gap: 13px;
}

.logo {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: linear-gradient(145deg, var(--surface-raised), var(--surface-soft));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.07);
  font-size: 0.85rem;
  font-weight: 820;
  letter-spacing: -0.04em;
}

.logo-primary { color: var(--text-color); }
.logo-secondary { color: var(--primary); }

.tagline-container {
  display: none;
  padding-left: 12px;
  border-left: 1px solid var(--line-strong);
  color: var(--text-secondary);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.desktop-nav { display: none; }
.desktop-nav ul {
  display: flex;
  gap: 27px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav-link {
  position: relative;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 680;
}

.nav-link::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s var(--ease);
}

.nav-link:hover,
.nav-link.active { color: var(--text-color); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); transform-origin: left; }

#theme-toggle {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--text-color);
  cursor: pointer;
}

#theme-toggle:hover { border-color: var(--primary); }

.mobile-bottom-nav {
  position: fixed;
  right: 12px;
  bottom: 12px;
  left: 12px;
  z-index: 900;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: var(--shadow);
}

.mobile-bottom-nav .mobile-link {
  display: grid;
  min-width: 0;
  place-items: center;
  gap: 2px;
  padding: 6px 2px;
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.58rem;
}

.mobile-link i { font-size: 1rem; }
.mobile-link.active {
  background: color-mix(in srgb, var(--primary) 11%, transparent);
  color: var(--primary);
}

/* Shared page masthead */
body > main {
  position: relative;
  min-height: 70vh;
  padding-top: 122px !important;
  padding-bottom: 110px !important;
}

.legal-container {
  width: var(--shell);
  max-width: none;
  margin: 0 auto;
}

.legal-header {
  position: relative;
  min-height: 330px;
  padding: clamp(30px, 7vw, 72px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 18%, color-mix(in srgb, var(--violet) 16%, transparent), transparent 34%),
    linear-gradient(135deg, color-mix(in srgb, var(--secondary) 7%, transparent), transparent 46%),
    var(--surface-soft);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.legal-header::before {
  display: inline-flex;
  padding: 6px 9px;
  border: 1px solid var(--card-border);
  border-radius: 99px;
  content: "KAWSHIK.DEV // DOCUMENT";
  color: var(--primary);
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
}

.legal-header::after {
  position: absolute;
  right: -95px;
  bottom: -135px;
  width: 340px;
  height: 340px;
  border: 1px dashed var(--line-strong);
  border-radius: 50%;
  content: "";
  opacity: 0.7;
}

.gradient-text {
  position: relative;
  z-index: 1;
  max-width: 850px;
  margin: clamp(62px, 10vw, 100px) 0 16px;
  color: var(--text-color);
  font-size: clamp(3rem, 10vw, 7.5rem);
  font-weight: 540;
  letter-spacing: -0.07em;
  line-height: 0.86;
  background: none !important;
  -webkit-text-fill-color: currentColor !important;
}

.gradient-text::first-letter { color: var(--primary); }

.last-updated {
  position: relative;
  z-index: 1;
  display: block;
  color: var(--text-secondary);
  font-family: var(--mono);
  font-size: clamp(0.6rem, 2vw, 0.72rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.legal-section {
  position: relative;
  margin: 20px 0 0 !important;
  padding: clamp(24px, 5vw, 46px) !important;
  border: 1px solid var(--card-border) !important;
  border-radius: var(--radius) !important;
  background: color-mix(in srgb, var(--surface-soft) 72%, transparent) !important;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.035);
  content-visibility: auto;
  contain-intrinsic-size: auto 260px;
}

.legal-section h2 {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0 0 18px;
  color: var(--text-color);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  letter-spacing: -0.035em;
}

.legal-section h2 i { color: var(--primary); font-weight: 400; }
.legal-section h3 { color: var(--text-color); }
.legal-section p,
.legal-section li {
  color: var(--muted-strong);
  font-size: 0.92rem;
}

.legal-section p:last-child { margin-bottom: 0; }
.legal-section a { color: var(--primary); }
.legal-section a:hover { text-decoration: underline; }
.legal-section strong { color: var(--text-color); }

.legal-section ul {
  padding-left: 22px;
}

.legal-section li + li { margin-top: 8px; }

.info-grid {
  display: grid;
  gap: 12px;
  margin-top: 25px;
}

.info-card {
  padding: 22px !important;
  border: 1px solid var(--card-border);
  border-radius: 15px;
  background: var(--surface-soft);
  color: var(--muted-strong);
  transition: border-color 0.25s ease, transform 0.25s var(--ease);
}

.info-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

.info-card > i {
  display: block;
  margin-bottom: 18px;
  color: var(--primary);
  font-size: 1.6rem;
}

.info-card strong { display: block; color: var(--text-color); }
.info-card p { margin: 5px 0 0; }

.contact-grid {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 20px !important;
  margin-top: 20px !important;
}

/* Forms */
.form-group {
  display: grid;
  gap: 7px;
  margin-bottom: 18px;
}

.form-group label {
  color: var(--muted-strong);
  font-size: 0.68rem;
  font-weight: 680;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--text-color);
  font-size: 0.86rem;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.form-group input { height: 47px; }
.form-group textarea {
  min-height: 130px;
  padding: 10px 0;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: linear-gradient(to top, color-mix(in srgb, var(--primary) 5%, transparent), transparent 55%);
}

.form-group ::placeholder { color: color-mix(in srgb, var(--text-secondary) 70%, transparent); }

.submit-btn,
#loadMoreBtn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 20px;
  border: 0;
  border-radius: 13px;
  background: var(--text-color);
  color: var(--bg-deep);
  font-size: 0.78rem;
  font-weight: 760;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.submit-btn:hover,
#loadMoreBtn:hover {
  box-shadow: 0 14px 38px color-mix(in srgb, var(--primary) 18%, transparent);
  transform: translateY(-2px);
}

.submit-btn:disabled { opacity: 0.65; cursor: wait; }
.form-feedback { margin-top: 14px; font-size: 0.75rem; }
.form-feedback.success { color: #8dda6c; }
.form-feedback.error { color: #ff8796; }
.form-feedback a { color: var(--primary); text-decoration: underline; }

.index-shell-page .visitor-placeholder span {
  color: var(--cyan);
  font-family: var(--font-mono);
}

/* Directory */
.bento-grid {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.bento-card {
  margin: 0 !important;
  padding: clamp(24px, 5vw, 42px) !important;
  border: 1px solid var(--card-border) !important;
  border-radius: var(--radius) !important;
  background: color-mix(in srgb, var(--surface-soft) 76%, transparent) !important;
  box-shadow: none !important;
  content-visibility: auto;
  contain-intrinsic-size: auto 320px;
}

.bento-card h2 {
  color: var(--text-color) !important;
  letter-spacing: -0.03em !important;
}

.bento-card h2 i { color: var(--primary); }
.bento-card h3 { color: var(--primary) !important; }
.bento-card a { color: var(--muted-strong) !important; }
.bento-card a:hover { color: var(--primary) !important; }

.utility-link {
  border: 1px solid var(--card-border);
  background: var(--surface-soft);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.utility-link:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

/* Footer */
.main-footer {
  padding: 65px 0 95px;
  border-top: 1px solid var(--card-border);
  background: var(--bg-deep);
}

.main-footer .container {
  width: var(--shell);
  margin-inline: auto;
}

.footer-grid {
  display: grid;
  gap: 35px;
}

.footer-logo {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 1.2rem;
  font-weight: 820;
}

.footer-logo .kaw { color: var(--text-color); }
.footer-logo .shik { color: var(--primary); }
.footer-tagline { margin: 0 0 4px; color: var(--muted-strong); font-size: 0.78rem; }
.footer-motto { margin: 0; color: var(--text-secondary); font-size: 0.68rem; }
.footer-heading { margin: 0 0 13px; font-size: 0.78rem; }

.footer-links,
.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 15px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.footer-links a,
.footer-legal-links a {
  color: var(--text-secondary);
  font-size: 0.65rem;
}

.footer-links a:hover,
.footer-legal-links a:hover { color: var(--primary); }

.footer-contact-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--text-secondary);
  font-size: 0.7rem;
  cursor: pointer;
  border: 0;
  background: none;
  padding: 0;
}

.footer-copy-toast {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  padding: 5px 8px;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  background: var(--surface);
  visibility: hidden;
  opacity: 0;
}

.footer-contact-item.copied .footer-copy-toast { visibility: visible; opacity: 1; }

.footer-social-icons {
  display: flex;
  gap: 9px;
  margin-top: 15px;
}

.footer-social-icons a {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--card-border);
  border-radius: 9px;
  color: var(--text-secondary);
}

.footer-social-icons a:hover { border-color: var(--primary); color: var(--primary); }
.footer-divider { margin: 35px 0 20px; border: 0; border-top: 1px solid var(--card-border); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  color: var(--text-secondary);
  font-size: 0.62rem;
}
.copyright { margin: 0; }
.copyright .footer-legal-links { margin-top: 9px; }

.scroll-top {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--card-border);
  border-radius: 11px;
  background: var(--surface);
  color: var(--text-color);
  cursor: pointer;
}

.scroll-top:hover { border-color: var(--primary); }

.fade-up,
.fade-in,
.page-reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}

.fade-up.visible,
.fade-in.visible,
.page-reveal.visible {
  opacity: 1;
  transform: none;
}

@media (min-width: 600px) {
  :root { --shell: min(1120px, calc(100vw - 64px)); }
  .tagline-container { display: block; }
  .info-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 860px) {
  #main-header { height: 82px; }
  .desktop-nav { display: block; }
  .mobile-bottom-nav { display: none; }
  body > main { padding-top: 138px !important; padding-bottom: 130px !important; }
  .contact-grid { grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr) !important; }
  .bento-grid { grid-template-columns: 1.1fr 0.9fr; }
  .block-full { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1.4fr 0.8fr; }
  .main-footer { padding-bottom: 32px; }
}

@media (min-width: 900px) {
  .index-shell-page .desktop-nav {
    display: flex;
  }
}

@media (max-width: 859px) {
  #main-header.scrolled { backdrop-filter: none; }
  .legal-header { min-height: 290px; }
}

@media (max-width: 440px) {
  .mobile-bottom-nav { grid-template-columns: repeat(5, 1fr); }
  .mobile-bottom-nav .mobile-link { font-size: 0.52rem; }
  .gradient-text { font-size: clamp(2.8rem, 15vw, 4.4rem); }
}

@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;
  }
  .fade-up,
  .fade-in,
  .page-reveal { opacity: 1; transform: none; }
}