/* ============================================================
   Kayinet Modem Kılavuzu – Premium Modern CSS
   ============================================================ */

:root {
  --bg-color: #0f172a;
  --panel-bg: #1e293b;
  --border-color: #334155;
  --accent-color: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --success-color: #10b981;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Outfit', sans-serif;
  --radius: 12px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Background elements */
.bg-gradient-mesh {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  background: 
    radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
    #090d16;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: white;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.brand-tagline {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #34d399;
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success-color);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success-color);
}

/* Layout Grid */
.layout-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
}

@media (max-width: 1024px) {
  .layout-grid {
    grid-template-columns: 1fr;
  }
}

/* Base Panel */
.panel {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.panel-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Form Styles */
.form-section-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-color);
  margin: 24px 0 16px 0;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--border-color);
}

.form-section-title:first-of-type {
  margin-top: 0;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.input-field {
  width: 100%;
  background-color: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.input-field:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-group {
  display: flex;
  gap: 10px;
}

.input-group .input-field {
  flex: 1;
}

/* Action Buttons */
.btn-copy {
  background-color: #334155;
  border: 1px solid #475569;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-copy:hover {
  background-color: #475569;
}

.btn-copy.copied {
  background-color: var(--success-color);
  border-color: var(--success-color);
  color: white;
}

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 1rem;
  font-weight: 700;
  padding: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
  transition: var(--transition);
  margin-top: 12px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Sidebar / Summary Panel */
.summary-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.info-display-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-display-row {
  background-color: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.info-display-row:hover {
  border-color: var(--accent-color);
  background-color: rgba(59, 130, 246, 0.02);
}

.info-display-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.info-display-value {
  font-weight: 600;
  font-family: monospace;
  font-size: 0.95rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.click-to-copy-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: -8px;
}

/* Guide points in sidebar */
.guide-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.feature-item {
  display: flex;
  gap: 12px;
  font-size: 0.85rem;
}

.feature-bullet {
  color: var(--accent-color);
  font-weight: 700;
}

.feature-text {
  color: var(--text-secondary);
}

/* Toast */
.toast-msg {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background-color: #1e293b;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: 50px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  font-weight: 600;
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 1000;
}

.toast-msg.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast-msg.success {
  border-color: var(--success-color);
}