/* =========================================================
   Custom CSS — Benjamin Vigier
   Theme variables, utilities, components, background
   Includes modified blob animation by Ksenia Kondrashova
   ========================================================= */

/* ---------- Palette and theme roles ---------- */
/* Brief: Core palette variables and theme role mappings (dark defaults) */
:root {
  --industrial-blue: #4a6fa5;
  --matte-graphite: #2e2e2e;
  --printed-paper: #f2f0eb;
  --amber-light: #e0a458;
  --railway-green: #556b57;
  --signal-red: #c84b31;
  --nordic-mist: #a8bfc9;
  --port-night: #243447;

  --color-bg: var(--matte-graphite);
  --color-text: var(--printed-paper);
  --color-accent: var(--amber-light);
  --color-link: var(--industrial-blue);
  --color-link-hover: var(--signal-red);
  --color-muted: var(--nordic-mist);

  --blob-1: var(--industrial-blue);
  --blob-2: var(--amber-light);
  --blob-3: var(--railway-green);
  --blob-4: var(--port-night);
}
/* ---------- Light theme variant ---------- */
/* Brief: Overrides applied when the user prefers a light color scheme */
@media (prefers-color-scheme: light) {
  :root {
    --color-bg: var(--printed-paper);
    --color-text: var(--matte-graphite);
    --color-accent: var(--industrial-blue);
    --color-link: var(--signal-red);
    --color-link-hover: var(--amber-light);
    --color-muted: var(--railway-green);

    --blob-1: var(--industrial-blue);
    --blob-2: var(--signal-red);
    --blob-3: var(--nordic-mist);
    --blob-4: var(--railway-green);
  }
}

/* ---------- Base HTML elements ---------- */
/* Brief: Basic HTML element defaults—typography, layout and base transitions */
html,
body {
  height: 100%;
}
body {
  position: relative;
  font-family: "Space Grotesk", system-ui, -apple-system, "Segoe UI", Arial,
    sans-serif;
  font-variant-ligatures: common-ligatures;
  font-feature-settings: "liga" 1, "clig" 1;
  text-rendering: optimizeLegibility;
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: background-color 0.5s ease, color 0.5s ease;
}
/* content-layer keeps stacked content above decorative backgrounds */
.content-layer {
  position: relative;
  z-index: 1;
}
/* Interactive element transitions (links, buttons, footer links) */
a,
.btn,
footer a {
  transition: color 0.3s ease, background-color 0.3s ease,
    border-color 0.3s ease, transform 0.15s ease;
}
/* Small utility: justified text */
.text-justify {
  text-align: justify;
  text-justify: inter-word;
}
/* Headings */
h1,
h2,
h3 {
  font-weight: 600;
  letter-spacing: -0.01em;
}
/* Default body-weight for common inline/block elements */
p,
a,
li {
  font-weight: 400;
}

/* ---------- Decorative background (SVG blobs) ---------- */
/* Brief: Full-viewport decorative SVG container and rotation animation */
.bg-blobs {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
.bg-blobs .out-top {
  animation: rotate 20s linear infinite;
  transform-origin: 13px 25px;
  fill: var(--blob-1);
  opacity: 0.28;
}
.bg-blobs .in-top {
  animation: rotate 10s linear infinite;
  transform-origin: 13px 25px;
  fill: var(--blob-2);
  opacity: 0.28;
}
.bg-blobs .out-bottom {
  animation: rotate 25s linear infinite;
  transform-origin: 84px 93px;
  fill: var(--blob-3);
  opacity: 0.28;
}
.bg-blobs .in-bottom {
  animation: rotate 15s linear infinite;
  transform-origin: 84px 93px;
  fill: var(--blob-4);
  opacity: 0.28;
}

/* ---------- Components: Glass card & helpers ---------- */
/* Brief: Glass-style centered card and related utilities */
.glass-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}
.glass-card {
  max-width: 820px;
  width: 100%;
  padding: 2.2rem 2rem;
  border-radius: 1.5rem;
  background: color-mix(in srgb, var(--color-bg) 30%, transparent);
  backdrop-filter: blur(14px) saturate(110%);
  -webkit-backdrop-filter: blur(14px) saturate(110%);
  border: 1px solid color-mix(in srgb, var(--color-text) 18%, transparent);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25),
    0 1px 0 rgba(255, 255, 255, 0.04) inset;
}
.glass-card h1 {
  margin-bottom: 0.75rem;
}
.glass-card p.lead {
  margin-top: 0.25rem;
  color: color-mix(in srgb, var(--color-text) 88%, transparent);
}
.glass-actions a.btn {
  min-width: 9rem;
}

/* ---------- Bootstrap overrides: Navbar & tabs ---------- */
/* Brief: Lightweight overrides to make bootstrap-like nav appear as compact tabs */
.profile-navbar {
  padding: 0.25rem 0.5rem;
  margin-bottom: 0.5rem;
  background: transparent;
  border-radius: 0.75rem;
}
.profile-navbar .navbar-nav .nav-link {
  padding: 0.35rem 0.6rem;
  font-size: 0.92rem;
  color: color-mix(in srgb, var(--color-text) 80%, transparent);
  border-radius: 0.5rem;
  white-space: nowrap;
}
.profile-navbar .navbar-nav .nav-link:hover {
  color: var(--color-link);
  text-decoration: none;
}
.profile-navbar .navbar-nav .nav-link.active {
  color: var(--matte-graphite);
  background-color: var(--color-accent);
}
.profile-navbar .navbar-toggler {
  border-color: color-mix(in srgb, var(--color-text) 25%, transparent);
}
.profile-navbar .navbar-toggler-icon {
  filter: invert(85%);
}
@media (max-width: 575.98px) {
  .profile-navbar .navbar-nav .nav-link {
    display: inline-block;
    margin: 0.1rem 0.15rem;
  }
}

/* ---------- Lists and intros ---------- */
/* Brief: Small list and intro spacing helpers */
.profile-list {
  margin: 0.25rem 0 0.5rem;
  padding-left: 1rem;
}
.profile-list li {
  margin: 0.2rem 0;
}
.tab-content .intro {
  margin-bottom: 0.25rem;
  color: color-mix(in srgb, var(--color-text) 85%, transparent);
}

/* ---------- Links ---------- */
/* Brief: Link defaults and hover behavior */
a {
  color: var(--color-link);
  text-decoration: none;
}
a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

/* ---------- Buttons ---------- */
/* Brief: Button color variants used across the site */
.btn-light {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--matte-graphite);
}
.btn-light:hover {
  background-color: var(--signal-red);
  border-color: var(--signal-red);
  color: var(--printed-paper);
}

/* ---------- Footer ---------- */
/* Brief: Footer layout, link colors and a light-theme tweak */
footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 25%, transparent);
  width: 80%;
  margin-left: auto;
  margin-right: auto;
}
footer a {
  color: var(--color-muted);
  margin: 0 0.4rem;
}
footer a:hover {
  color: var(--color-accent);
  transform: translateY(-1px) scale(1.05);
}

/* ---------- Footer separator ---------- */
.glass-card footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 25%, transparent);
  width: 80%;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Logo emoji ---------- */
/* Brief: Small inline helper for emoji used in the logo */
.logo-emoji {
  display: inline-block;
  font-size: 1.1em;
  vertical-align: middle;
  margin-right: 0.25em;
}

/* ---------- Fallbacks & accessibility ---------- */
/* Brief: Feature fallbacks and reduced-motion accessibility handling */
@supports not (
  (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))
) {
  .glass-card {
    background: color-mix(
      in srgb,
      var(--color-bg) 75%,
      var(--printed-paper) 25%
    );
  }
}
@media (prefers-reduced-motion: reduce) {
  .bg-blobs {
    animation: none !important;
  }
  footer a:hover {
    transform: none;
  }
}
/* ---------- Compact nav-tabs ---------- */
/* Brief: Tight, compact tab styles used in profile/navigation areas */
.profile-tabs {
  gap: 0.15rem; /* small spacing between tabs */
  flex-wrap: wrap; /* wrap when truly needed */
  border-bottom-color: color-mix(in srgb, var(--color-text) 20%, transparent);
}

/* Default size (desktop-ish) */
.profile-tabs .nav-link {
  padding: 0.2rem 0.35rem; /* tighter padding */
  font-size: 0.75rem; /* slightly smaller text */
  line-height: 0.9;
  border: none;
  border-radius: 0.5rem 0.5rem 0 0;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  background: transparent;
  white-space: nowrap; /* prefer one line */
}

.profile-tabs .nav-link:hover {
  color: var(--color-link);
  text-decoration: none;
}

.profile-tabs .nav-link.active {
  background-color: color-mix(in srgb, var(--color-accent) 85%, transparent);
  color: var(--matte-graphite);
  border: 1px solid color-mix(in srgb, var(--color-accent) 70%, transparent);
  border-bottom-color: transparent;
  backdrop-filter: blur(3px);
}

/* Slim down a touch on tablets */
@media (max-width: 992px) {
  .profile-tabs .nav-link {
    padding: 0.26rem 0.48rem;
    font-size: 0.9rem;
  }
}

/* Slimmer again on small phones */
@media (max-width: 576px) {
  .profile-tabs .nav-link {
    padding: 0.22rem 0.42rem;
    font-size: 0.86rem;
  }
}