/* ─── Runtime State · Site Shell ─── */

/* ─── BACKGROUND CANVAS ─── */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

/* ─── SITE NAV ─── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 2.5rem;
  pointer-events: none;
}

.site-nav > * {
  pointer-events: auto;
}

.site-logo {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  text-decoration: none;
  color: var(--text, #e0e0e0);
  opacity: 0.6;
  transition: opacity 0.3s;
}

.site-logo:hover {
  opacity: 1;
}

.site-logo .accent {
  color: var(--accent, #e86a4a);
}

.light-mode .site-logo {
  color: #000;
}

.site-nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.site-nav-links a {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--text, #e0e0e0);
  opacity: 0.6;
  transition: opacity 0.3s;
}

.site-nav-links a:hover {
  opacity: 1;
}

.light-mode .site-nav-links a {
  color: #000;
}

/* ─── PAGE CONTAINER ─── */
.page {
  position: relative;
  z-index: 1;
  max-width: 860px;
  padding: 0 3rem;
  margin: 0 auto;
}

/* ─── SITE FOOTER ─── */
.site-footer {
  padding: 3rem 0 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.65rem;
  color: var(--faint, #3a3a3a);
  letter-spacing: 0.05em;
}

.site-footer a {
  text-decoration: none;
  color: var(--faint, #3a3a3a);
  transition: color 0.3s;
}

.site-footer a:hover {
  color: var(--dim, #777);
}

/* ─── THEME TOGGLE ─── */
.theme-toggle {
  background: transparent;
  color: var(--text-main, var(--text, #e0e0e0));
  border: 1px solid var(--border-strong, var(--faint, #3a3a3a));
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.3s;
  backdrop-filter: blur(5px);
}

.theme-toggle:hover {
  background: var(--text-main, var(--text, #e0e0e0));
  color: var(--bg);
}

/* ─── SUBSCRIBE FORM ─── */
.subscribe {
  display: block;
  max-width: 640px;
}

.subscribe-label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim, #777);
  margin-bottom: 0.9rem;
  font-weight: 400;
}

.subscribe-row {
  display: flex;
  gap: 0;
  border: 1px solid var(--faint, #3a3a3a);
  border-radius: 2px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.subscribe-row:focus-within {
  border-color: var(--accent, #e86a4a);
}

.subscribe-row input[type="email"] {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text, #e0e0e0);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 300;
  padding: 0.95rem 1.15rem;
  letter-spacing: -0.005em;
}

.subscribe-row input[type="email"]::placeholder {
  color: var(--faint, #3a3a3a);
}

.subscribe-row button {
  background: var(--text, #e0e0e0);
  color: var(--bg, #0c0c0c);
  border: none;
  font-family: inherit;
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0 1.5rem;
  transition: background 0.3s, color 0.3s;
  white-space: nowrap;
  font-weight: 500;
}

.subscribe-row button:hover {
  background: var(--accent, #e86a4a);
  color: #0c0c0c;
}

.subscribe-row button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.subscribe-note {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--faint, #3a3a3a);
  margin-top: 0.85rem;
  line-height: 1.55;
  font-weight: 300;
}

.subscribe-status {
  font-size: 0.78rem;
  color: var(--dim, #777);
  margin-top: 0.85rem;
  line-height: 1.55;
  font-weight: 300;
  min-height: 1.2em;
}

.subscribe.is-ok .subscribe-status {
  color: var(--tag-grounded, #5fc490);
}

.subscribe.is-error .subscribe-status {
  color: var(--accent, #e86a4a);
}

/* Inline variant used inside post bodies — slightly more restrained */
.subscribe-block {
  margin: 5rem 10vw 3rem;
  padding: 2.5rem 0 0;
  border-top: 1px solid var(--rule, #1a1a1a);
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.subscribe-block .subscribe-heading {
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim, #777);
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.subscribe-block .subscribe-headline {
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.018em;
  line-height: 1.35;
  color: var(--text, #e0e0e0);
  margin-bottom: 1.5rem;
  max-width: 32ch;
}

.subscribe-block .subscribe { max-width: 560px; }

/* Light-mode overrides */
.light-mode .subscribe-row {
  border-color: #E8E8E8;
}

.light-mode .subscribe-row:focus-within {
  border-color: var(--accent, #e86a4a);
}

.light-mode .subscribe-row input[type="email"] {
  color: #000;
}

.light-mode .subscribe-row input[type="email"]::placeholder {
  color: #aaa;
}

.light-mode .subscribe-row button {
  background: #000;
  color: #fff;
}

.light-mode .subscribe-row button:hover {
  background: var(--accent, #e86a4a);
  color: #fff;
}

.light-mode .subscribe-note {
  color: #888;
}

.light-mode .subscribe-label,
.light-mode .subscribe-block .subscribe-heading {
  color: #666;
}

.light-mode .subscribe-block .subscribe-headline {
  color: #000;
}

.light-mode .subscribe-block {
  border-color: #E8E8E8;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 600px) {
  .page {
    padding: 0 1.5rem;
  }

  .site-nav {
    padding: 1.5rem;
  }

  .subscribe-row {
    flex-direction: column;
    border: none;
  }

  .subscribe-row input[type="email"] {
    border: 1px solid var(--faint, #3a3a3a);
    padding: 0.9rem 1rem;
    border-radius: 2px;
  }

  .light-mode .subscribe-row input[type="email"] {
    border-color: #E8E8E8;
  }

  .subscribe-row button {
    margin-top: 0.6rem;
    padding: 0.95rem 1rem;
    border-radius: 2px;
  }
}

@media (max-width: 768px) {
  .subscribe-block {
    margin-left: 5vw;
    margin-right: 5vw;
  }
}