/* ---------------------------------------------------------
   GLOBAL FOUNDATION
--------------------------------------------------------- */
:root {
  --primary-gold: #f7d98a;
  --muted-gold: #d8c48a;
  --deep-bg: #0a0a0a;
  --panel-bg: rgba(20, 20, 20, 0.95);
  --border-color: #3a2f12;
  --glow: 0 0 15px rgba(247, 217, 138, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--deep-bg);
  color: #eee;
  font-family: 'Inter', -apple-system, sans-serif;
  line-height: 1.6;
}

/* ---------------------------------------------------------
   HEADER & NAVIGATION
--------------------------------------------------------- */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 60px 40px 40px;
  position: relative;
  border-bottom: 1px solid var(--border-color);
}

.app-title {
  font-size: 38px;
  letter-spacing: 4px;
  font-weight: 600;
  color: var(--primary-gold);
  text-shadow: 0 0 12px rgba(247, 217, 138, 0.4);
}

.app-subtitle {
  font-size: 14px;
  margin-top: 5px;
  color: var(--muted-gold);
  letter-spacing: 2px;
  opacity: 0.8;
}

/* ARCHIVE PORTAL BUTTON */
.archive-portal-button {
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: 1px solid var(--primary-gold);
  color: var(--primary-gold);
  padding: 12px 24px;
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 2px;
  border-radius: 4px;
  transition: all 0.3s ease;
  z-index: 10;
}

.archive-portal-button:hover {
  background: var(--primary-gold);
  color: #000;
  box-shadow: 0 0 20px rgba(247, 217, 138, 0.4);
  transform: translateY(-2px);
}

/* ---------------------------------------------------------
   TABS SYSTEM
--------------------------------------------------------- */
.app-tabs {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.tab-button {
  background: transparent;
  border: none;
  color: #888;
  padding: 10px 25px;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 1px;
  transition: color 0.3s;
}

.tab-button.active {
  color: var(--primary-gold);
  border-bottom: 2px solid var(--primary-gold);
}

/* ---------------------------------------------------------
   PANEL ARCHITECTURE
--------------------------------------------------------- */
.app-main {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
}

.panel {
  display: none;
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 30px;
}

.panel-active {
  display: block;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.panel-header {
  margin-bottom: 25px;
  border-bottom: 1px solid #222;
  padding-bottom: 15px;
}

.panel-header h3 {
  color: var(--primary-gold);
  text-transform: uppercase;
  letter-spacing: 3px;
}

/* ---------------------------------------------------------
   INPUTS & OUTPUTS
--------------------------------------------------------- */
label {
  display: block;
  font-size: 11px;
  color: var(--muted-gold);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 8px;
  margin-top: 20px;
}

select, textarea {
  width: 100%;
  background: #111;
  border: 1px solid #333;
  color: #eee;
  padding: 12px;
  border-radius: 4px;
  font-size: 14px;
}

textarea {
  min-height: 100px;
  resize: vertical;
}

.primary-button {
  width: 100%;
  margin-top: 30px;
  padding: 15px;
  background: transparent;
  border: 1px solid var(--primary-gold);
  color: var(--primary-gold);
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s;
}

.primary-button:hover {
  background: var(--primary-gold);
  color: #000;
}

.output-block {
  background: #050505;
  border: 1px dashed #444;
  padding: 20px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 13px;
  color: #aaa;
  white-space: pre-wrap;
  min-height: 400px;
}

/* ---------------------------------------------------------
   MOBILE OPTIMIZATION
--------------------------------------------------------- */
@media (max-width: 900px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }
  .app-header {
    flex-direction: column;
    text-align: center;
  }
  .archive-portal-button {
    margin-top: 20px;
  }
}