/* ============================================================
   Tanvir Creates — Component styles
   Class-based so hover/focus/press states work. Shipped with the
   token closure. All values pull from tokens.
   ============================================================ */

/* ---------- Button ---------- */
.tc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-tight);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}
.tc-btn:active { transform: translateY(1px); }
.tc-btn:disabled, .tc-btn[aria-disabled="true"] {
  opacity: 0.45; cursor: not-allowed; transform: none;
}
.tc-btn--sm { font-size: var(--text-sm); padding: 8px 14px; }
.tc-btn--md { font-size: var(--text-base); padding: 11px 20px; }
.tc-btn--lg { font-size: var(--text-lg); padding: 15px 28px; }
.tc-btn--full { width: 100%; }

.tc-btn--primary { background: var(--accent); color: var(--text-on-accent); position: relative; isolation: isolate; }
.tc-btn--primary:hover { background: var(--accent-hover); }
.tc-btn--primary:active { background: var(--accent-pressed); }
/* After-glow: blue bloom behind CTA buttons */
.tc-btn--primary::after {
  content: ""; position: absolute; inset: -3px; z-index: -1; border-radius: inherit;
  background: linear-gradient(100deg, var(--blue), var(--accent-tint));
  filter: blur(13px); opacity: 0.45;
  transition: opacity var(--duration-base) var(--ease-out);
}
.tc-btn--primary:hover::after { opacity: 0.7; }
@media (prefers-reduced-motion: reduce) { .tc-btn--primary::after { transition: none; } }

.tc-btn--secondary {
  background: transparent; color: var(--text-primary);
  border-color: var(--border-strong);
}
.tc-btn--secondary:hover { background: var(--surface-sunken); border-color: var(--text-muted); }

.tc-btn--ghost { background: transparent; color: var(--text-primary); }
.tc-btn--ghost:hover { background: var(--surface-sunken); }

.tc-btn--link {
  background: transparent; color: var(--link); padding-left: 0; padding-right: 0;
}
.tc-btn--link:hover { color: var(--link-hover); text-decoration: underline; text-underline-offset: 3px; }

/* On deep-blue / dark inverse surfaces */
.tc-on-inverse .tc-btn--secondary { color: var(--text-on-inverse); border-color: var(--border-inverse); }
.tc-on-inverse .tc-btn--secondary:hover { background: rgba(255,255,255,0.08); }
.tc-on-inverse .tc-btn--ghost { color: var(--text-on-inverse); }
.tc-on-inverse .tc-btn--ghost:hover { background: rgba(255,255,255,0.08); }

/* ---------- Icon Button ---------- */
.tc-iconbtn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); border: 1px solid transparent;
  background: transparent; color: var(--text-secondary); cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}
.tc-iconbtn:hover { background: var(--surface-sunken); color: var(--text-primary); }
.tc-iconbtn--sm { width: 32px; height: 32px; }
.tc-iconbtn--md { width: 40px; height: 40px; }
.tc-iconbtn--lg { width: 48px; height: 48px; }
.tc-iconbtn--outline { border-color: var(--border-subtle); }

/* ---------- Inputs ---------- */
.tc-field { display: flex; flex-direction: column; gap: var(--space-2); }
.tc-label {
  font-size: var(--text-sm); font-weight: var(--fw-medium); color: var(--text-secondary);
}
.tc-input, .tc-textarea, .tc-select {
  font-family: var(--font-sans); font-size: var(--text-base); color: var(--text-primary);
  background: var(--surface-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm); padding: 11px 14px; width: 100%;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}
.tc-textarea { resize: vertical; min-height: 120px; line-height: var(--lh-normal); }
.tc-input::placeholder, .tc-textarea::placeholder { color: var(--text-muted); }
.tc-input:focus, .tc-textarea:focus, .tc-select:focus {
  outline: none; border-color: var(--accent); box-shadow: var(--shadow-focus);
}
.tc-input:disabled, .tc-textarea:disabled, .tc-select:disabled {
  opacity: 0.55; cursor: not-allowed; background: var(--surface-sunken);
}
.tc-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237B7C74' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px;
}
.tc-help { font-size: var(--text-sm); color: var(--text-muted); }
.tc-help--error { color: var(--danger); }
.tc-input--error, .tc-textarea--error, .tc-select--error { border-color: var(--danger); }

/* ---------- Badge & Tag ---------- */
.tc-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--text-xs); font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide); border-radius: var(--radius-full);
  padding: 4px 10px; line-height: 1;
}
.tc-badge--accent { background: color-mix(in srgb, var(--blue) 10%, transparent); color: var(--blue); }
.tc-badge--neutral { background: var(--surface-sunken); color: var(--text-secondary); }
.tc-badge--blue { background: color-mix(in srgb, var(--blue) 10%, transparent); color: var(--blue); }
[data-theme="dark"] .tc-badge--accent,
:root:not([data-theme="light"]) .tc-badge--accent { background: color-mix(in srgb, var(--accent-tint) 22%, transparent); color: var(--accent-light); }
[data-theme="dark"] .tc-badge--blue,
:root:not([data-theme="light"]) .tc-badge--blue { background: color-mix(in srgb, var(--accent-tint) 22%, transparent); color: var(--accent-light); }

.tc-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--text-sm); font-weight: var(--fw-medium); color: var(--text-secondary);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-full);
  padding: 5px 12px; background: transparent;
}

/* ---------- Card ---------- */
.tc-card {
  background: var(--surface-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md); overflow: hidden;
}
.tc-card--pad { padding: var(--space-6); }
.tc-card--elevated { box-shadow: var(--shadow-md); border-color: transparent; }
.tc-card--interactive { transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out); }
.tc-card--interactive:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ---------- Image placeholder ---------- */
.tc-imgph {
  position: relative; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: var(--space-2);
  background: var(--surface-sunken);
  border: 1px dashed var(--border-strong); border-radius: var(--radius-md);
  color: var(--text-muted); text-align: center; padding: var(--space-6);
  min-height: 180px; overflow: hidden;
}
.tc-imgph__label { font-size: var(--text-sm); font-weight: var(--fw-medium); letter-spacing: var(--tracking-wide); }
.tc-imgph__hint { font-size: var(--text-xs); color: var(--text-muted); }
.tc-imgph__grid {
  position: absolute; inset: 0; opacity: 0.5;
  background-image: linear-gradient(var(--border-subtle) 1px, transparent 1px),
                    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 28px 28px;
}
.tc-imgph > * { position: relative; }

/* ---------- Section heading & eyebrow ---------- */
.tc-eyebrow {
  font-size: var(--text-sm); font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wider); text-transform: uppercase;
  color: var(--accent); display: inline-flex; align-items: center; gap: var(--space-2);
}
.tc-on-inverse .tc-eyebrow { color: var(--accent-light); }
.tc-section-heading { display: flex; flex-direction: column; gap: var(--space-4); max-width: 40ch; }
.tc-section-heading__title {
  font-family: var(--font-display); font-weight: var(--fw-bold);
  font-size: var(--text-4xl); line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight); color: var(--text-primary); margin: 0;
}
.tc-section-heading__lead {
  font-size: var(--text-lg); line-height: var(--lh-relaxed); color: var(--text-secondary); margin: 0;
}
.tc-on-inverse .tc-section-heading__title { color: var(--text-on-inverse); }
.tc-on-inverse .tc-section-heading__lead { color: var(--text-inverse-muted); }

/* ---------- Wordmark ---------- */
.tc-wordmark {
  font-family: var(--font-display); font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-tight); color: var(--text-primary);
  display: inline-flex; align-items: baseline; gap: 0.25ch; text-decoration: none;
}
.tc-wordmark__accent { color: var(--accent); }
.tc-on-inverse .tc-wordmark { color: var(--text-on-inverse); }
.tc-on-inverse .tc-wordmark__accent { color: var(--accent-light); }

/* ---------- Project card ---------- */
.tc-project { display: flex; flex-direction: column; gap: var(--space-4); }
.tc-project__media { border-radius: var(--radius-md); overflow: hidden; }
.tc-project__meta { display: flex; flex-direction: column; gap: var(--space-2); }
.tc-project__title {
  font-family: var(--font-display); font-weight: var(--fw-semibold);
  font-size: var(--text-xl); letter-spacing: var(--tracking-tight);
  color: var(--text-primary); margin: 0;
}
.tc-project__cat { font-size: var(--text-sm); color: var(--text-muted); letter-spacing: var(--tracking-wide); }
.tc-project__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }