/* ===========================
   ValeKeeper — BASE STYLES
   =========================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f3460;
  --accent: #e94560;
  --accent-soft: #c73652;
  --text-primary: #eaeaea;
  --text-secondary: #a8a8b3;
  --text-muted: #6b6b7b;
  --success: #4ecca3;
  --warning: #f5a623;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
}

#app {
  height: 100vh;
  width: 100vw;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

/* ===========================
   SCREENS
   =========================== */

.screen {
  display: none;
  min-height: 100vh;
  padding: 24px 20px;
  flex-direction: column;
  animation: fadeIn 0.4s ease;
}

.screen.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===========================
   TYPOGRAPHY
   =========================== */

h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h2 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.text-muted {
  color: var(--text-muted);
  font-size: 13px;
}

.text-accent {
  color: var(--accent);
}

.text-success {
  color: var(--success);
}

/* ===========================
   BUTTONS
   =========================== */

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 16px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  gap: 8px;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:active {
  background: var(--accent-soft);
  transform: scale(0.98);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:active {
  transform: scale(0.98);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  font-weight: 400;
}

/* ===========================
   CARDS
   =========================== */

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* ===========================
   INPUTS
   =========================== */

.input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
  outline: none;
}

.input:focus {
  border-color: var(--accent);
}

textarea.input {
  resize: none;
  min-height: 120px;
  line-height: 1.6;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 15px;
}

/* ===========================
   SPACING UTILITIES
   =========================== */

.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }

/* ===========================
   LOGO / BRAND
   =========================== */

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
}

.brand-icon {
  width: 72px;
  height: 72px;
  background: var(--accent);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  box-shadow: 0 8px 24px rgba(233,69,96,0.4);
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.brand-tagline {
  font-size: 14px;
  color: var(--text-muted);
}