@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Color System: Deep Void / Electric Accents */
  --bg-void: #030304;
  --bg-surface: #0A0A0C;
  --bg-surface-elevated: #121215;

  --border-subtle: #1E1E22;
  --border-medium: #2A2A30;
  --border-highlight: #3F3F46;

  --accent-primary: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.5);
  --accent-text: #e0e7ff;

  --text-primary: #FFFFFF;
  --text-secondary: #A1A1AA;
  --text-tertiary: #52525B;

  --h-control: 50px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-full: 9999px;

  --shadow-surface: 0 0 0 1px var(--border-subtle), 0 4px 20px -2px rgba(0, 0, 0, 0.5);
  --shadow-active: 0 0 0 1px var(--accent-primary), 0 0 0 4px rgba(99, 102, 241, 0.2);
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-void);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  height: 100vh;
  overflow: hidden;
  background-image: radial-gradient(circle at 50% 0%, #1a1a2e 0%, transparent 60%);
}

/* Typography */
h1,
h2,
h3 {
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.heading-hero {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.heading-section {
  font-size: 24px;
  font-weight: 700;
}

.heading-card {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.text-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  display: block;
}

/* Cards */
.nano-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-surface);
  padding: 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.nano-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-highlight), transparent);
  opacity: 0.5;
}

/* Inputs */
.nano-input {
  height: var(--h-control);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0 16px;
  color: var(--text-primary);
  font-size: 15px;
  width: 100%;
  outline: none;
}

.nano-input:hover,
.nano-input:focus {
  background: #18181b;
}

.nano-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.nano-select {
  appearance: none;
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
}

/* Buttons */
.nano-btn {
  height: var(--h-control);
  border-radius: var(--radius-md);
  padding: 0 24px;
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
}

.nano-btn-primary {
  background: var(--accent-primary);
  color: #fff;
}

.nano-btn-ghost {
  background: transparent;
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
}

/* Layout */
.nano-grid-index {
  display: grid;
  grid-template-columns: repeat(2, 420px);
  gap: 32px;
  justify-content: center;
}

.nano-grid-room {
  display: grid;
  grid-template-columns: 320px 1fr 280px;
  gap: 24px;
  height: 100vh;
  padding: 24px;
}

.nano-grid-room > div {
  min-height: 0;
}

/* Utils */
.flex-col { display: flex; flex-direction: column; }
.flex-row { display: flex; align-items: center; gap: 12px; }
.flex-grow { flex-grow: 1; }
.mt-auto { margin-top: auto; }

.text-accent { color: var(--accent-primary); }
.text-mono { font-family: 'JetBrains Mono', monospace; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: 3px;
}

/* 🔴 MOTOR YAZISINI GİZLE */
div[style*="margin-top: 64px"] {
  display: none !important;
}