/* ═══════════════════════════════════════════════
   Text Size Calculator Tool — Styles
   Uses tsc- prefix for namespacing
   ═══════════════════════════════════════════════ */

/* Page Header */
.tsc-page-header {
  display: grid;
  grid-template-columns: 1fr auto;
  border-bottom: 1px solid var(--border);
  background: #0a0a0a;
}

.tsc-ph-left {
  padding: 44px 48px 36px;
  border-right: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.tsc-ph-left::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(255, 255, 255, 0.012) 3px,
    rgba(255, 255, 255, 0.012) 4px
  );
}

.tsc-ph-eyebrow {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.tsc-ph-eyebrow .ey-dot {
  width: 6px;
  height: 6px;
  background: var(--green, #00c875);
  border-radius: 50%;
  animation: tsc-dot-blink 1.8s step-end infinite;
}

@keyframes tsc-dot-blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

.tsc-ph-eyebrow .ey-sep {
  color: var(--border);
}

.tsc-ph-title {
  font-family: var(--cond);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 18px;
}

.tsc-ph-title .t-accent {
  color: var(--yellow);
}

.tsc-ph-desc {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 500px;
  line-height: 1.65;
  border-left: 3px solid var(--yellow);
  padding-left: 14px;
  margin-bottom: 28px;
}

.tsc-ph-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tsc-ph-tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.tsc-ph-tag.yellow {
  color: var(--yellow);
  border-color: var(--yellow);
}
.tsc-ph-tag.green {
  color: var(--green, #00c875);
  border-color: var(--green, #00c875);
}

.tsc-ph-right {
  display: flex;
  flex-direction: column;
  min-width: 220px;
}

.tsc-ph-stat {
  flex: 1;
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.tsc-ph-stat:last-child {
  border-bottom: none;
}

.tsc-ph-stat-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.tsc-ph-stat-val {
  font-family: var(--cond);
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.tsc-ph-stat-val .y {
  color: var(--yellow);
}

.tsc-ph-stat-note {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--muted);
  margin-top: 6px;
}

/* Base structural grid */
.tsc-page-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  min-height: calc(100vh - 80px); /* rough fallback */
}

/* Main column */
.tsc-col-main {
  border-right: 1px solid var(--border);
  background: var(--bg);
}

.tsc-tool-panel {
  border-bottom: 1px solid var(--border);
}

.tsc-tph-header {
  height: 46px;
  border-bottom: 1px solid var(--border);
  background: #0a0a0a;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
}

.tsc-tph-title {
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tsc-tph-title .status {
  width: 8px;
  height: 8px;
  background: var(--green, #00c875);
  border-radius: 50%;
  flex-shrink: 0;
  animation: tsc-dot-blink 1.8s step-end infinite;
}

.tsc-tph-actions {
  display: flex;
  align-items: stretch;
}

.tsc-tph-btn {
  height: 46px;
  padding: 0 16px;
  border: none;
  border-left: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  cursor: pointer;
  transition:
    background 0.12s,
    color 0.12s;
}

.tsc-tph-btn:hover {
  background: #111;
  color: var(--white);
}

.tsc-tool-body {
  padding: 30px;
  background: var(--ink, #0c0c0c);
}

/* Stats Grid */
.tsc-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.tsc-stat-card {
  background: #0a0a0a;
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s;
}

.tsc-stat-card.primary {
  border-color: rgba(212, 255, 0, 0.3);
  background: rgba(212, 255, 0, 0.02);
}

.tsc-stat-card.primary .tsc-sc-val {
  color: var(--yellow);
}

.tsc-sc-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.tsc-sc-icon {
  font-size: 1rem;
  opacity: 0.5;
}

.tsc-sc-val {
  font-family: var(--cond);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  color: var(--white);
  letter-spacing: -0.02em;
  word-break: break-all;
}

.tsc-sc-sub {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--muted);
  margin-top: 8px;
}

/* Input Area */
.tsc-field-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.tsc-encoding-toggle {
  display: flex;
  border: 1px solid var(--border);
  background: #0a0a0a;
}

.tsc-enc-btn {
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: all 0.12s;
}

.tsc-enc-btn.active {
  background: var(--yellow);
  color: var(--ink, #0c0c0c);
  font-weight: 600;
}

.tsc-inp-wrap {
  position: relative;
}

.tsc-textarea {
  width: 100%;
  height: 300px;
  background: #0a0a0a;
  border: 1px solid var(--border);
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.6;
  padding: 20px;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s;
}

.tsc-textarea:focus {
  border-color: var(--yellow);
}
.tsc-textarea::placeholder {
  color: var(--muted);
  opacity: 0.5;
}

.tsc-file-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(4px);
  border: 2px dashed var(--yellow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
  z-index: 10;
}

.tsc-file-overlay.active {
  opacity: 1;
}
.tsc-fo-icon {
  font-size: 3rem;
  margin-bottom: 10px;
}
.tsc-fo-title {
  font-family: var(--cond);
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--yellow);
  letter-spacing: 0.04em;
}
.tsc-fo-desc {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 8px;
}

/* Content sections */
.tsc-content-section {
  border-bottom: 1px solid var(--border);
}

.tsc-cs-header {
  display: flex;
  align-items: center;
  padding: 0 28px;
  height: 46px;
  border-bottom: 1px solid var(--border);
  background: #0a0a0a;
}

.tsc-cs-header-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tsc-cs-header-title {
  font-family: var(--cond);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--white);
  margin-left: 16px;
  border-left: 1px solid var(--border);
  padding-left: 16px;
}

.tsc-step {
  display: grid;
  grid-template-columns: 64px 1fr;
  border-bottom: 1px solid var(--border);
  transition: background 0.12s;
}
.tsc-step:hover {
  background: #0d0d0d;
}
.tsc-step:last-child {
  border-bottom: none;
}

.tsc-step-num {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 22px 0 20px;
  border-right: 1px solid var(--border);
  font-family: var(--cond);
  font-size: 2rem;
  font-weight: 900;
  color: var(--border);
  letter-spacing: -0.04em;
  transition: color 0.15s;
}

.tsc-step:hover .tsc-step-num {
  color: var(--yellow);
}

.tsc-step-content {
  padding: 20px 24px;
}
.tsc-step-title {
  font-family: var(--cond);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--white);
  margin-bottom: 6px;
}
.tsc-step-desc {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.6;
}

.tsc-code {
  font-family: var(--mono);
  font-size: 0.75rem;
  background: #161616;
  border: 1px solid var(--border);
  padding: 1px 6px;
  color: var(--yellow);
}

/* FAQ */
.tsc-faq-item {
  border-bottom: 1px solid var(--border);
}
.tsc-faq-item:last-child {
  border-bottom: none;
}

.tsc-faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 28px;
  text-align: left;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  transition:
    background 0.12s,
    color 0.12s;
  background: none;
  border: none;
  cursor: pointer;
}
.tsc-faq-q:hover {
  background: #0d0d0d;
  color: var(--yellow);
}

.tsc-faq-icon {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--muted);
  flex-shrink: 0;
  transition:
    transform 0.2s,
    color 0.12s;
}

.tsc-faq-q[aria-expanded="true"] {
  background: #0d0d0d;
  color: var(--yellow);
}
.tsc-faq-q[aria-expanded="true"] .tsc-faq-icon {
  transform: rotate(45deg);
  color: var(--yellow);
}

.tsc-faq-a {
  display: none;
  padding: 0 28px 20px;
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  background: #0a0a0a;
}
.tsc-faq-a.open {
  display: block;
}
.tsc-faq-a code {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--yellow);
  background: #161616;
  border: 1px solid var(--border);
  padding: 1px 5px;
}

/* Responsive */
@media (max-width: 1024px) {
  .tsc-page-body {
    grid-template-columns: 1fr;
  }
  .tsc-col-side {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    background: none;
  }
  .tsc-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .tsc-page-header {
    grid-template-columns: 1fr;
    padding: 20px;
  }
  .tsc-ph-right {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--border);
    border-left: none;
  }
  .tsc-ph-stat {
    border-bottom: none;
    border-right: 1px solid var(--border);
    padding: 20px;
  }
  .tsc-ph-stat:last-child {
    border-right: none;
  }
  .tsc-tool-body {
    padding: 18px;
  }
  .tsc-col-side {
    grid-template-columns: 1fr;
  }
  .tsc-stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .tsc-ph-title {
    font-size: 2.8rem;
  }
  .tsc-ph-right {
    grid-template-columns: 1fr;
  }
  .tsc-ph-stat {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .tsc-tph-actions {
    display: none; /* Hide top buttons on very small screens, keep bottom inputs */
  }
}