@import './tokens.css';

/* ── Google Fonts (Inter 400/500/600/700) ───────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ── Reset / Normalize ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img, svg, video { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ── Base ───────────────────────────────────────────────────────────────── */
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Animated background blobs ──────────────────────────────────────────── */
.bg-blobs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: var(--radius-full);
  filter: var(--blur-blob);
  will-change: transform;
}

.blob-1 {
  width: 640px;
  height: 640px;
  top: -220px;
  left: -160px;
  background: var(--color-blob-1);
  animation: blob-float-1 28s ease-in-out infinite;
}

.blob-2 {
  width: 520px;
  height: 520px;
  bottom: -160px;
  right: -120px;
  background: var(--color-blob-2);
  animation: blob-float-2 34s ease-in-out infinite;
  animation-delay: -10s;
}

.blob-3 {
  width: 420px;
  height: 420px;
  top: 38%;
  right: -60px;
  background: var(--color-blob-3);
  animation: blob-float-3 22s ease-in-out infinite;
  animation-delay: -16s;
}

@keyframes blob-float-1 {
  0%, 100% { transform: translate(0,    0   ) scale(1   ); }
  25%       { transform: translate(48px, -64px) scale(1.06); }
  50%       { transform: translate(80px,  24px) scale(0.94); }
  75%       { transform: translate(-32px, 48px) scale(1.08); }
}

@keyframes blob-float-2 {
  0%, 100% { transform: translate(0,     0   ) scale(1   ); }
  33%       { transform: translate(-56px, 40px) scale(1.10); }
  66%       { transform: translate(44px, -36px) scale(0.92); }
}

@keyframes blob-float-3 {
  0%, 100% { transform: translate(0,    0   ) scale(1   ); }
  40%       { transform: translate(52px, 64px) scale(0.96); }
  80%       { transform: translate(-40px,-24px) scale(1.06); }
}

/* Respect user preference */
@media (prefers-reduced-motion: reduce) {
  .blob { animation: none; }
}

/* ── Layout helpers ─────────────────────────────────────────────────────── */
.centered {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: var(--space-4);
}

.stack {
  display: flex;
  flex-direction: column;
}

.stack-sm  { gap: var(--space-3); }
.stack-md  { gap: var(--space-5); }
.stack-lg  { gap: var(--space-8); }

.w-full { width: 100%; }

/* ── Glass card ─────────────────────────────────────────────────────────── */
.glass-card {
  background: var(--color-glass-bg);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  box-shadow: var(--shadow-card);
  padding: var(--space-8) var(--space-6);
  width: 100%;
  max-width: 440px;
}

/* ── Typography ─────────────────────────────────────────────────────────── */
.text-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.text-subtitle {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
}

.text-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ── Input ──────────────────────────────────────────────────────────────── */
.input {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: var(--space-3) var(--space-4);
  background: var(--color-glass-input-bg);
  border: 1.5px solid rgba(124, 58, 237, 0.18);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
}

.input::placeholder { color: var(--color-text-muted); }

.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  white-space: nowrap;
  transition:
    background-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast),
    opacity var(--transition-fast);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-text);
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-btn-hover);
  transform: translateY(-1px);
}

.btn-primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
  box-shadow: var(--shadow-btn);
}

.btn-ghost {
  background: var(--color-glass-bg);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-glass-border);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
}

.btn-ghost:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.8);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-full { width: 100%; }

/* ── Progress bar ───────────────────────────────────────────────────────── */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-progress-track);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-progress-fill);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  min-width: 0;
}

/* ── Divider ─────────────────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: rgba(124, 58, 237, 0.10);
  margin: var(--space-6) 0;
}

/* ── Feedback states ─────────────────────────────────────────────────────── */
.state-success { color: var(--color-success); }
.state-error   { color: var(--color-error);   }