/*
Theme Name: Spirare
Theme URI: https://spirare.site
Author: Spirare Editorial
Description: A bold, contemplative Catholic/Christian teaching theme — Spirit-led, without preaching.
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: spirare
*/

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  /* Base palette */
  --sp-base:        #1E3D44;
  --sp-base-deep:   #18313A;
  --sp-base-deeper: #122830;
  --sp-surface:     #183138;
  --sp-surface-mid: #1A343B;
  --sp-footer:      #12272D;
  --sp-footer-deep: #0E1F24;

  /* Accent — warm amber gold */
  --sp-accent:      #E8942A;
  --sp-accent-mute: rgba(232, 148, 42, 0.12);
  --sp-accent-soft: rgba(232, 148, 42, 0.06);
  --sp-accent-border: rgba(232, 148, 42, 0.25);

  /* Text */
  --sp-text:        #EEF4F3;
  --sp-text-muted:  rgba(238, 244, 243, 0.5);
  --sp-text-faint:  rgba(238, 244, 243, 0.3);
  --sp-text-ghost:  rgba(238, 244, 243, 0.2);

  /* Borders */
  --sp-border:      rgba(238, 244, 243, 0.08);
  --sp-border-mid:  rgba(238, 244, 243, 0.14);
  --sp-border-soft: rgba(238, 244, 243, 0.06);

  /* Nav */
  --sp-nav-h: 72px;

  /* Typography */
  --sp-font-serif:  'Playfair Display', Georgia, serif;
  --sp-font-body:   'Lora', Georgia, serif;
  --sp-font-ui:     'DM Sans', system-ui, sans-serif;

  /* Spacing */
  --sp-space-xs:    0.5rem;
  --sp-space-sm:    1rem;
  --sp-space-md:    2rem;
  --sp-space-lg:    4rem;
  --sp-space-xl:    7rem;

  /* Radii */
  --sp-radius-sm:   0.5rem;
  --sp-radius-md:   0.875rem;
  --sp-radius-lg:   1.25rem;
  --sp-radius-pill: 99px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--sp-font-ui);
  background: var(--sp-base);
  color: var(--sp-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }

/* ============================================================
   TYPOGRAPHY SCALE
   ============================================================ */
.sp-display {
  font-family: var(--sp-font-serif);
  font-size: clamp(2.75rem, 5.5vw, 5.5rem);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--sp-text);
}

.sp-h1 {
  font-family: var(--sp-font-serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--sp-text);
}

.sp-h2 {
  font-family: var(--sp-font-serif);
  font-size: clamp(1.625rem, 2.5vw, 2.25rem);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--sp-text);
}

.sp-h3 {
  font-family: var(--sp-font-serif);
  font-size: clamp(1.125rem, 1.75vw, 1.5rem);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--sp-text);
}

.sp-lead {
  font-family: var(--sp-font-body);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.85;
  color: var(--sp-text-muted);
}

.sp-body {
  font-family: var(--sp-font-body);
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--sp-text-muted);
}

.sp-label {
  font-family: var(--sp-font-ui);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--sp-text-faint);
}

.sp-label-accent {
  font-family: var(--sp-font-ui);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--sp-accent);
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.sp-container {
  width: 100%;
  max-width: 1250px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.5rem, 3%, 3.5rem);
  padding-right: clamp(1.5rem, 3%, 3.5rem);
}

.sp-container--narrow { max-width: 780px; }
.sp-container--wide   { max-width: 1400px; }

.sp-section {
  padding-top: var(--sp-space-xl);
  padding-bottom: var(--sp-space-xl);
}

.sp-section--md {
  padding-top: var(--sp-space-lg);
  padding-bottom: var(--sp-space-lg);
}

.sp-divider {
  border: none;
  border-top: 1px solid var(--sp-border);
  margin: var(--sp-space-lg) 0;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.sp-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--sp-nav-h);
  background: rgba(24, 49, 58, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--sp-border);
  z-index: 200;
  display: flex;
  align-items: center;
}

.sp-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 3%, 3.5rem);
}

.sp-nav__logo {
  font-family: var(--sp-font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--sp-text);
  letter-spacing: -0.02em;
  text-decoration: none;
  flex-shrink: 0;
  white-space: nowrap;
}

.sp-nav__logo em {
  font-style: italic;
  color: var(--sp-accent);
}

.sp-nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex: 1;
}

.sp-nav__link {
  font-family: var(--sp-font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--sp-text-muted);
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
}

.sp-nav__link:hover,
.sp-nav__link.current-menu-item { color: var(--sp-accent); }

.sp-nav__right {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  flex-shrink: 0;
}

/* Search */
.sp-nav__search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--sp-text-muted);
  cursor: pointer;
  padding: 0.375rem;
  border-radius: 50%;
  transition: color 0.2s, background 0.2s;
}
.sp-nav__search-btn:hover {
  color: var(--sp-accent);
  background: var(--sp-accent-mute);
}

.sp-nav__search { position: relative; display: flex; align-items: center; }

.sp-nav__search-form {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: var(--sp-surface);
  border: 1px solid var(--sp-border-mid);
  border-radius: var(--sp-radius-pill);
  padding: 0.3rem 0.5rem 0.3rem 1rem;
  width: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: width 0.28s cubic-bezier(0.4,0,0.2,1), opacity 0.2s;
  white-space: nowrap;
}
.sp-nav__search-form.open {
  width: 260px;
  opacity: 1;
  pointer-events: all;
}
.sp-nav__search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--sp-font-ui);
  font-size: 0.875rem;
  color: var(--sp-text);
  outline: none;
  min-width: 0;
}
.sp-nav__search-input::placeholder { color: var(--sp-text-faint); }
.sp-nav__search-submit,
.sp-nav__search-close {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--sp-text-faint);
  cursor: pointer;
  padding: 0.2rem;
  border-radius: 50%;
  flex-shrink: 0;
  transition: color 0.2s;
}
.sp-nav__search-close:hover { color: var(--sp-text); }

/* Dropdown */
.sp-nav__dropdown { position: relative; display: inline-flex; align-items: center; }
.sp-nav__dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 50%;
  transform: translateX(-50%);
  background: var(--sp-surface);
  border: 1px solid var(--sp-border-mid);
  border-radius: var(--sp-radius-md);
  min-width: 180px;
  padding: 0.5rem 0;
  z-index: 200;
}
.sp-nav__dropdown:hover .sp-nav__dropdown-menu,
.sp-nav__dropdown-menu:hover { display: block; }
.sp-nav__dropdown::after {
  content: '';
  position: absolute;
  top: 100%; left: 0; right: 0;
  height: 0.75rem;
}
.sp-nav__dropdown-item {
  display: block;
  padding: 0.6rem 1.25rem;
  font-family: var(--sp-font-ui);
  font-size: 0.825rem;
  color: var(--sp-text-muted);
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
}
.sp-nav__dropdown-item:first-child {
  font-weight: 500;
  color: var(--sp-text);
  border-bottom: 1px solid var(--sp-border);
  margin-bottom: 0.25rem;
}
.sp-nav__dropdown-item:hover { color: var(--sp-accent); background: var(--sp-accent-mute); }

.sp-nav__cta {
  font-family: var(--sp-font-ui);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--sp-base-deep);
  background: var(--sp-accent);
  padding: 0.5rem 1.25rem;
  border-radius: var(--sp-radius-pill);
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.sp-nav__cta:hover {
  background: #f5a84a;
  transform: translateY(-1px);
}

.sp-nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
}
.sp-nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--sp-text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile drawer */
.sp-nav__drawer {
  display: none;
  position: fixed;
  top: var(--sp-nav-h);
  left: 0; right: 0;
  background: var(--sp-surface);
  border-bottom: 1px solid var(--sp-border);
  padding: 2rem clamp(1.5rem, 5%, 5rem);
  flex-direction: column;
  gap: 1.25rem;
  z-index: 199;
}
.sp-nav__drawer.open { display: flex; }
.sp-nav__drawer .sp-nav__link { font-size: 1rem; letter-spacing: 0.04em; }

.sp-nav__drawer-search { display: flex; }
.sp-nav__drawer-search .sp-nav__search-input {
  width: 100%;
  padding: 0.625rem 1rem;
  border: 1px solid var(--sp-border-mid);
  border-radius: var(--sp-radius-pill);
  font-family: var(--sp-font-ui);
  font-size: 0.875rem;
  color: var(--sp-text);
  background: var(--sp-base);
  outline: none;
}
.sp-nav__drawer-search .sp-nav__search-input:focus { border-color: var(--sp-accent); }

/* ============================================================
   BUTTONS
   ============================================================ */
.sp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sp-font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.875rem 2rem;
  border-radius: var(--sp-radius-pill);
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.2s, border-color 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.sp-btn--primary {
  background: var(--sp-accent);
  color: var(--sp-base-deep);
}
.sp-btn--primary:hover {
  background: #f5a84a;
  transform: translateY(-2px);
}

.sp-btn--outline {
  background: transparent;
  color: var(--sp-text-muted);
  border: 1px solid var(--sp-border-mid);
}
.sp-btn--outline:hover {
  border-color: var(--sp-accent);
  color: var(--sp-accent);
}

.sp-btn--ghost {
  background: transparent;
  color: var(--sp-text-muted);
  padding-left: 0;
  padding-right: 0;
}
.sp-btn--ghost:hover { color: var(--sp-accent); }

/* ============================================================
   TAGS / BADGES
   ============================================================ */
.sp-tag {
  display: inline-block;
  font-family: var(--sp-font-ui);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.28rem 0.8rem;
  border-radius: var(--sp-radius-pill);
  background: var(--sp-accent-mute);
  color: var(--sp-accent);
  text-decoration: none;
  transition: background 0.2s;
}
.sp-tag:hover { background: rgba(232,148,42,0.2); }

.sp-tag--subtle {
  background: var(--sp-border);
  color: var(--sp-text-muted);
}

/* ============================================================
   CARDS
   ============================================================ */
.sp-card {
  background: var(--sp-surface);
  border: 1px solid var(--sp-border);
  border-radius: var(--sp-radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: transform 0.3s cubic-bezier(0.2,0,0,1), border-color 0.3s;
}

.sp-card:hover {
  transform: translateY(-4px);
  border-color: var(--sp-border-mid);
}

.sp-card__stretch-link { color: inherit; text-decoration: none; }
.sp-card__stretch-link::after { content: ''; position: absolute; inset: 0; }
.sp-card__meta a, .sp-card__footer a { position: relative; z-index: 1; }

.sp-card__thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--sp-surface-mid);
  position: relative;
}
.sp-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.2,0,0,1);
}
.sp-card:hover .sp-card__thumb img { transform: scale(1.04); }

.sp-grid--featured .sp-card:not(.sp-card--featured) .sp-card__thumb {
  aspect-ratio: unset;
  height: 200px;
}

.sp-card__body {
  padding: 1.625rem 1.875rem 1.875rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sp-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sp-card__title {
  font-family: var(--sp-font-serif);
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--sp-text);
}

.sp-card--featured .sp-card__title {
  font-size: clamp(1.3rem, 2vw, 1.75rem);
}

.sp-card__excerpt {
  font-family: var(--sp-font-body);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--sp-text-muted);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sp-card__footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1.125rem;
  border-top: 1px solid var(--sp-border);
  margin-top: auto;
  font-size: 0.78rem;
  color: var(--sp-text-faint);
}

.sp-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--sp-accent-mute);
  border: 1px solid var(--sp-accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sp-font-ui);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--sp-accent);
  flex-shrink: 0;
}

.sp-avatar--lg { width: 48px; height: 48px; font-size: 0.9rem; }
.sp-avatar--xl { width: 64px; height: 64px; font-size: 1.1rem; }

/* ============================================================
   HERO
   ============================================================ */
.sp-hero {
  padding-top: calc(var(--sp-nav-h) + var(--sp-space-xl));
  padding-bottom: var(--sp-space-xl);
  border-bottom: 1px solid var(--sp-border);
}

.sp-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.sp-hero__eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--sp-accent);
}

.sp-hero__title { margin-bottom: 1.75rem; }
.sp-hero__title em { font-style: italic; color: var(--sp-accent); }
.sp-hero__sub { margin-bottom: 3rem; max-width: 500px; }
.sp-hero__actions { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }

.sp-hero__title-row {
  display: flex;
  align-items: flex-end;
  gap: 3rem;
  margin-bottom: 1.75rem;
}
.sp-hero__title { margin-bottom: 0; flex-shrink: 0; }

.sp-hero__inline-stats {
  display: flex;
  gap: 2rem;
  padding-left: 2.5rem;
  border-left: 1px solid var(--sp-border);
  padding-bottom: 0.4rem;
}
.sp-hero__inline-stat { display: flex; flex-direction: column; gap: 0.2rem; }
.sp-hero__stat-num {
  font-family: var(--sp-font-serif);
  font-size: 1.875rem;
  font-weight: 500;
  color: var(--sp-accent);
  line-height: 1;
  margin-bottom: 0.25rem;
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.sp-section-header { margin-bottom: 3.5rem; }
.sp-section-header--flex {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

/* ============================================================
   POST GRIDS
   ============================================================ */
.sp-grid--3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.sp-grid--2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.75rem; }
.sp-grid--featured {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 1.5rem;
}
.sp-grid--featured .sp-card--featured { grid-row: 1 / 3; }

/* ============================================================
   FILTER BAR
   ============================================================ */
.sp-filter-bar {
  background: var(--sp-surface);
  border-bottom: 1px solid var(--sp-border);
  padding: 1.625rem 0;
  position: sticky;
  top: var(--sp-nav-h);
  z-index: 100;
}

.sp-filter-bar__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.sp-search { position: relative; flex: 1; min-width: 220px; }
.sp-search__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--sp-text-faint);
  pointer-events: none;
  font-size: 0.875rem;
}
.sp-search__input {
  width: 100%;
  padding: 0.7rem 2.5rem 0.7rem 2.5rem;
  border: 1px solid var(--sp-border-mid);
  border-radius: var(--sp-radius-pill);
  background: var(--sp-base);
  font-family: var(--sp-font-ui);
  font-size: 0.875rem;
  color: var(--sp-text);
  outline: none;
  transition: border-color 0.2s;
}
.sp-search__input::placeholder { color: var(--sp-text-faint); }
.sp-search__input:focus { border-color: var(--sp-accent); }

.sp-search__clear {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--sp-text-faint);
  cursor: pointer;
  font-size: 0.875rem;
  display: none;
  padding: 0;
  line-height: 1;
  transition: color 0.2s;
}
.sp-search__clear:hover { color: var(--sp-accent); }
.sp-search__clear.visible { display: block; }

.sp-filter-pills { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.sp-pill {
  font-family: var(--sp-font-ui);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.45rem 1.1rem;
  border-radius: var(--sp-radius-pill);
  border: 1px solid var(--sp-border-mid);
  background: transparent;
  color: var(--sp-text-muted);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.sp-pill:hover { border-color: var(--sp-accent); color: var(--sp-accent); }
.sp-pill.active { background: var(--sp-accent); border-color: var(--sp-accent); color: var(--sp-base-deep); }

.sp-sort {
  padding: 0.5rem 1rem;
  border: 1px solid var(--sp-border-mid);
  border-radius: var(--sp-radius-pill);
  background: var(--sp-base);
  font-family: var(--sp-font-ui);
  font-size: 0.76rem;
  color: var(--sp-text-muted);
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}
.sp-sort:focus { border-color: var(--sp-accent); }

/* ============================================================
   SINGLE ARTICLE
   ============================================================ */
.sp-article-header {
  padding-top: calc(var(--sp-nav-h) + 5rem);
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--sp-border);
}

.sp-article-hero {
  aspect-ratio: 21 / 8;
  width: 100%;
  overflow: hidden;
  border-radius: var(--sp-radius-lg);
  background: var(--sp-surface-mid);
  margin: 4rem 0;
}
.sp-article-hero img { width: 100%; height: 100%; object-fit: cover; }

.sp-article-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 5rem;
  align-items: start;
  padding: 4rem 0 7rem;
}

/* Article body typography */
.sp-article-body p {
  font-family: var(--sp-font-body);
  font-size: 1.125rem;
  line-height: 1.95;
  color: var(--sp-text-muted);
  margin-bottom: 1.875rem;
}
.sp-article-body h2 {
  font-family: var(--sp-font-serif);
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--sp-text);
  letter-spacing: -0.02em;
  margin: 3rem 0 1.25rem;
}
.sp-article-body h3 {
  font-family: var(--sp-font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--sp-text);
  margin: 2.5rem 0 1rem;
}
.sp-article-body blockquote {
  border-left: 2px solid var(--sp-accent);
  padding: 0.5rem 0 0.5rem 2rem;
  margin: 3rem 0;
}
.sp-article-body blockquote p {
  font-family: var(--sp-font-serif);
  font-size: 1.35rem;
  font-style: italic;
  color: var(--sp-text);
  line-height: 1.55;
  margin-bottom: 0.5rem;
}
.sp-article-body blockquote cite {
  font-family: var(--sp-font-ui);
  font-size: 0.8rem;
  color: var(--sp-text-faint);
  font-style: normal;
  letter-spacing: 0.04em;
}
.sp-article-body .drop-cap::first-letter {
  font-family: var(--sp-font-serif);
  font-size: 5rem;
  font-weight: 500;
  float: left;
  line-height: 0.78;
  margin: 0.1em 0.12em 0 0;
  color: var(--sp-accent);
}
.sp-article-body hr {
  border: none;
  border-top: 1px solid var(--sp-border);
  margin: 3rem 0;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sp-sidebar {
  position: sticky;
  top: calc(var(--sp-nav-h) + 2rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sp-sidebar__card {
  background: var(--sp-surface);
  border: 1px solid var(--sp-border);
  border-radius: var(--sp-radius-md);
  padding: 1.5rem;
}

.sp-sidebar__label {
  font-family: var(--sp-font-ui);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sp-text-faint);
  margin-bottom: 1.25rem;
}

.sp-toc { display: flex; flex-direction: column; gap: 0.25rem; }
.sp-toc a {
  font-family: var(--sp-font-ui);
  font-size: 0.825rem;
  color: var(--sp-text-faint);
  text-decoration: none;
  padding: 0.35rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.875rem;
  line-height: 1.45;
  transition: color 0.2s, border-color 0.2s;
  display: block;
}
.sp-toc a:hover { color: var(--sp-accent); }
.sp-toc a.active { color: var(--sp-accent); border-color: var(--sp-accent); font-weight: 500; }

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.sp-progress {
  position: fixed;
  top: var(--sp-nav-h);
  left: 0;
  height: 2px;
  background: var(--sp-accent);
  width: 0%;
  z-index: 199;
  transition: width 0.1s linear;
}

/* ============================================================
   NEWSLETTER
   ============================================================ */
.sp-newsletter {
  background: var(--sp-surface);
  border-top: 1px solid var(--sp-border);
  border-bottom: 1px solid var(--sp-border);
  padding: var(--sp-space-xl) 0;
}

.sp-newsletter__inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.sp-newsletter h2 {
  font-family: var(--sp-font-serif);
  font-size: clamp(1.875rem, 3vw, 2.75rem);
  font-weight: 500;
  color: var(--sp-text);
  margin: 1rem 0;
}

.sp-newsletter p {
  font-family: var(--sp-font-body);
  font-size: 1rem;
  color: var(--sp-text-muted);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.sp-newsletter__form {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.sp-newsletter__input {
  flex: 1;
  min-width: 220px;
  padding: 0.875rem 1.375rem;
  border-radius: var(--sp-radius-pill);
  border: 1px solid var(--sp-border-mid);
  background: var(--sp-base);
  color: var(--sp-text);
  font-family: var(--sp-font-ui);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}
.sp-newsletter__input::placeholder { color: var(--sp-text-faint); }
.sp-newsletter__input:focus { border-color: var(--sp-accent); }

/* ============================================================
   FOOTER
   ============================================================ */
.sp-footer {
  background: var(--sp-footer);
  color: var(--sp-text-muted);
  padding: 5rem 0 2.5rem;
}

.sp-footer__grid {
  display: grid;
  grid-template-columns: 1.75fr 1fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--sp-border);
  margin-bottom: 2rem;
}

.sp-footer__logo {
  font-family: var(--sp-font-serif);
  font-size: 1.375rem;
  font-weight: 500;
  color: var(--sp-text);
  display: block;
  margin-bottom: 1rem;
  text-decoration: none;
}
.sp-footer__logo em { font-style: italic; color: var(--sp-accent); }

.sp-footer__tagline {
  font-family: var(--sp-font-body);
  font-size: 0.875rem;
  color: var(--sp-text-faint);
  line-height: 1.75;
  margin-bottom: 1.75rem;
}

.sp-footer__col-label {
  font-family: var(--sp-font-ui);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sp-text-ghost);
  margin-bottom: 1.25rem;
}

.sp-footer__links { display: flex; flex-direction: column; gap: 0.7rem; }
.sp-footer__links a {
  font-size: 0.875rem;
  color: var(--sp-text-faint);
  text-decoration: none;
  transition: color 0.2s;
}
.sp-footer__links a:hover { color: var(--sp-accent); }

.sp-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.775rem;
  color: var(--sp-text-ghost);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.sp-footer__bottom a { color: var(--sp-text-faint); text-decoration: none; }
.sp-footer__bottom a:hover { color: var(--sp-accent); }

/* ============================================================
   FORMS
   ============================================================ */
.sp-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.375rem;
}

.sp-label {
  font-family: var(--sp-font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--sp-text);
}
.sp-label .required { color: var(--sp-accent); margin-left: 2px; }
.sp-label .hint { font-weight: 400; color: var(--sp-text-faint); font-size: 0.76rem; margin-left: 0.3rem; }

.sp-input,
.sp-select,
.sp-textarea {
  width: 100%;
  padding: 0.8rem 1.1rem;
  border: 1px solid var(--sp-border-mid);
  border-radius: var(--sp-radius-sm);
  background: var(--sp-surface);
  font-family: var(--sp-font-ui);
  font-size: 0.9rem;
  color: var(--sp-text);
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}
.sp-input:focus, .sp-select:focus, .sp-textarea:focus { border-color: var(--sp-accent); }
.sp-input::placeholder, .sp-textarea::placeholder { color: var(--sp-text-faint); }

.sp-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.65;
}

.sp-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  margin-bottom: 0.875rem;
}
.sp-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 0.1rem;
  accent-color: var(--sp-accent);
  cursor: pointer;
}
.sp-checkbox span {
  font-family: var(--sp-font-body);
  font-size: 0.875rem;
  color: var(--sp-text-muted);
  line-height: 1.55;
}

.sp-char-count {
  font-size: 0.72rem;
  color: var(--sp-text-faint);
  text-align: right;
  margin-top: 0.2rem;
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.sp-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--sp-text-faint);
  margin-bottom: 2rem;
}
.sp-breadcrumb a { color: var(--sp-accent); text-decoration: none; }
.sp-breadcrumb a:hover { text-decoration: underline; }

/* ============================================================
   BYLINE
   ============================================================ */
.sp-byline {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.375rem 0;
  border-top: 1px solid var(--sp-border);
  border-bottom: 1px solid var(--sp-border);
}
.sp-byline__info { flex: 1; }
.sp-byline__name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--sp-text);
  margin-bottom: 0.2rem;
}
.sp-byline__meta {
  font-size: 0.78rem;
  color: var(--sp-text-faint);
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

/* ============================================================
   REACTIONS
   ============================================================ */
.sp-reactions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.sp-reaction {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.1rem;
  border-radius: var(--sp-radius-pill);
  border: 1px solid var(--sp-border-mid);
  background: var(--sp-surface);
  font-family: var(--sp-font-ui);
  font-size: 0.825rem;
  color: var(--sp-text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.sp-reaction:hover,
.sp-reaction.active {
  border-color: var(--sp-accent);
  background: var(--sp-accent-mute);
  color: var(--sp-accent);
}

/* ============================================================
   SHARE BUTTONS
   ============================================================ */
.sp-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--sp-font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border-radius: var(--sp-radius-pill);
  border: 1px solid var(--sp-border-mid);
  background: transparent;
  color: var(--sp-text-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  white-space: nowrap;
}
.sp-share-btn:hover { border-color: var(--sp-accent); color: var(--sp-accent); }

.sp-share-btn-lg { font-size: 0.8rem; padding: 0.5rem 1.125rem; }

/* ============================================================
   COMMENTS
   ============================================================ */
.sp-comments { font-family: var(--sp-font-ui); }
.sp-comment-list > li + li { border-top: none; }
.sp-comment .children { padding-left: 3.5rem; list-style: none; }

.sp-comment-form .sp-form-group { margin-bottom: 1.25rem; }
.sp-comment-form label.sp-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sp-text-muted);
}
.comment-reply-link {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--sp-accent);
  text-decoration: none;
  letter-spacing: 0.04em;
}
.comment-reply-link:hover { text-decoration: underline; }
#cancel-comment-reply-link {
  font-size: 0.78rem;
  color: var(--sp-text-faint);
  text-decoration: none;
  margin-left: 1rem;
}
#cancel-comment-reply-link:hover { color: var(--sp-accent); }

/* ============================================================
   PAGE HEADER
   ============================================================ */
.sp-page-header {
  padding: 8rem 0 5rem;
  border-bottom: 1px solid var(--sp-border);
  background: var(--sp-surface);
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.sp-text-accent  { color: var(--sp-accent); }
.sp-text-muted   { color: var(--sp-text-muted); }
.sp-text-faint   { color: var(--sp-text-faint); }
.sp-bg-surface   { background: var(--sp-surface); }
.sp-border-top   { border-top: 1px solid var(--sp-border); }
.sp-border-bottom{ border-bottom: 1px solid var(--sp-border); }
.sp-mt-sm { margin-top: var(--sp-space-sm); }
.sp-mt-md { margin-top: var(--sp-space-md); }
.sp-mt-lg { margin-top: var(--sp-space-lg); }
.sp-mb-sm { margin-bottom: var(--sp-space-sm); }
.sp-mb-md { margin-bottom: var(--sp-space-md); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .sp-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .sp-grid--featured { grid-template-columns: 1fr; grid-template-rows: auto; }
  .sp-grid--featured .sp-card--featured { grid-row: auto; }
  .sp-footer__grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .sp-article-layout { grid-template-columns: 1fr; }
  .sp-sidebar { position: static; }
}

@media (max-width: 768px) {
  :root { --sp-space-xl: 5rem; --sp-space-lg: 3rem; }
  .sp-grid--3 { grid-template-columns: 1fr; }
  .sp-grid--2 { grid-template-columns: 1fr; }
  .sp-nav__links { display: none; }
  .sp-nav__hamburger { display: flex; }
  .sp-hero__inline-stats { gap: 1.5rem; }
  .sp-hero__title-row { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
  .sp-hero__inline-stats { border-left: none; padding-left: 0; border-top: 1px solid var(--sp-border); padding-top: 1rem; }
  .sp-footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .sp-filter-bar__inner { flex-direction: column; align-items: stretch; }
}

@media (max-width: 480px) {
  :root { --sp-space-xl: 4rem; }
  .sp-hero__actions { flex-direction: column; align-items: flex-start; }
}