/* ============================================================
   styles.css — Payment Engine (ProgInsight design system)
   Apple HIG · Blur · Compact header · Cards-first
   All colors via CSS custom properties — theme JSON overrides
   No CDN fonts: host in resources/fonts/ or supply inter.css
   ============================================================ */

/* ── Font stacks ──────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Nunito:wght@300;400;500;600;700;800&family=Raleway:wght@300;400;500;600;700&display=swap');
/* TODO: replace with self-hosted resources/fonts/inter.css to go CDN-zero */

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

/* ── CSS Custom Properties — Light defaults ───────────────── */
/* Overridden by /resources/themes/*.json at runtime             */
:root {
  --color-bg-base:             #f2f2f7;
  --color-bg-chrome:           rgba(255,255,255,0.72);
  --color-bg-card:             rgba(255,255,255,0.60);
  --color-bg-card-hover:       rgba(255,255,255,0.88);
  --color-bg-modal:            rgba(255,255,255,0.92);
  --color-bg-input:            rgba(0,0,0,0.05);
  --color-bg-toggle:           rgba(0,0,0,0.06);
  --color-bg-btn-pill:         rgba(0,0,0,0.06);
  --color-border:              rgba(0,0,0,0.10);
  --color-border-strong:       rgba(0,0,0,0.18);
  --color-text-primary:        #1c1c1e;
  --color-text-secondary:      #48484a;
  --color-text-tertiary:       #8e8e93;
  --color-accent-blue:         #007aff;
  --color-accent-purple:       #5e5ce6;
  --color-accent-amber:        #ff9500;
  --color-accent-blue-soft:    rgba(0,122,255,0.12);
  --color-accent-purple-soft:  rgba(94,92,230,0.12);
  --color-accent-amber-soft:   rgba(255,149,0,0.12);
  --color-gradient-hero:       linear-gradient(160deg,#e8eaf6 0%,#f3e5f5 55%,#e3f2fd 100%);
  --color-gradient-thinker:    linear-gradient(135deg,#007aff,#34aadc);
  --color-gradient-creator:    linear-gradient(135deg,#5e5ce6,#007aff);
  --color-gradient-strategist: linear-gradient(135deg,#ff9500,#ff3b30);
  --color-shadow-card:         0 2px 16px rgba(0,0,0,0.07);
  --color-shadow-modal:        0 20px 60px rgba(0,0,0,0.14);

  --blur-chrome:  blur(20px) saturate(180%);
  --blur-card:    blur(16px) saturate(150%);
  --blur-modal:   blur(40px) saturate(200%);

  --ease-spring:  cubic-bezier(0.34,1.56,0.64,1);
  --ease-smooth:  cubic-bezier(0.25,0.46,0.45,0.94);
  --dur-fast:     140ms;
  --dur-base:     240ms;
  --dur-slow:     380ms;

  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   22px;
  --radius-pill: 999px;
}

/* ── Dark theme override ──────────────────────────────────── */
/* Applied when theme JSON sets these, or via data-theme="dark"  */
[data-theme="dark"] {
  --color-bg-base:        #1c1c1e;
  --color-bg-chrome:      rgba(28,28,30,0.82);
  --color-bg-card:        rgba(44,44,46,0.72);
  --color-bg-card-hover:  rgba(58,58,60,0.90);
  --color-bg-modal:       rgba(36,36,38,0.96);
  --color-bg-input:       rgba(255,255,255,0.07);
  --color-bg-toggle:      rgba(255,255,255,0.08);
  --color-bg-btn-pill:    rgba(255,255,255,0.08);
  --color-border:         rgba(255,255,255,0.10);
  --color-border-strong:  rgba(255,255,255,0.20);
  --color-text-primary:   #f2f2f7;
  --color-text-secondary: #aeaeb2;
  --color-text-tertiary:  #636366;
  --color-gradient-hero:  linear-gradient(160deg,#1a1a2e 0%,#16213e 55%,#0f3460 100%);
  --color-shadow-card:    0 2px 16px rgba(0,0,0,0.30);
  --color-shadow-modal:   0 20px 60px rgba(0,0,0,0.50);
}

/* ── Font classes ────────────────────────────────────────── */
body.font-sf      { font-family: -apple-system,'SF Pro Display','SF Pro Text',system-ui,sans-serif; }
body.font-inter   { font-family: 'Inter',   system-ui, sans-serif; }
body.font-nunito  { font-family: 'Nunito',  system-ui, sans-serif; }
body.font-raleway { font-family: 'Raleway', system-ui, sans-serif; }

/* ── Base ────────────────────────────────────────────────── */
html { scroll-behavior: smooth; height: 100%; }

body {
  font-size: 15px;
  color: var(--color-text-primary);
  background: var(--color-bg-base);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition:
    background var(--dur-slow) var(--ease-smooth),
    color var(--dur-slow) var(--ease-smooth);
}

/* ── Hero gradient (fixed, behind everything) ────────────── */
.bg-hero {
  position: fixed;
  inset: 0;
  background: var(--color-gradient-hero);
  z-index: 0;
  transition: background var(--dur-slow) var(--ease-smooth);
}
.bg-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 45% at 15% 25%, rgba(94,92,230,0.10) 0%, transparent 70%),
    radial-gradient(ellipse 45% 55% at 85% 75%, rgba(0,122,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

/* ══════════════════════════════════════════════════════════
   TOP BAR
   ══════════════════════════════════════════════════════════ */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg-chrome);
  -webkit-backdrop-filter: var(--blur-chrome);
  backdrop-filter: var(--blur-chrome);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--dur-slow) var(--ease-smooth);
}

.top-bar-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
}

/* Brand */
.brand { display: flex; flex-direction: column; justify-content: center; }
.brand-name {
  font-size: 16px; font-weight: 700; letter-spacing: -0.3px;
  color: var(--color-text-primary); line-height: 1.1;
}
.brand-tagline {
  font-size: 11px; color: var(--color-text-tertiary); letter-spacing: 0.01em;
}

/* Typing banner */
.typing-banner {
  text-align: center; font-size: 13px; font-weight: 500;
  color: var(--color-text-secondary); letter-spacing: 0.02em;
  white-space: nowrap; overflow: hidden;
}
.typing-text  { display: inline; }
.typing-cursor {
  display: inline-block; width: 1.5px; height: 13px;
  background: var(--color-accent-blue); margin-left: 1px;
  vertical-align: middle; border-radius: 1px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* Controls */
.top-controls { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }

.ctrl-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 6px 12px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); background: var(--color-bg-btn-pill);
  color: var(--color-text-secondary); font-size: 12px; font-weight: 600;
  font-family: inherit; cursor: pointer; white-space: nowrap;
  transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
  letter-spacing: 0.01em;
}
.ctrl-btn:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}
.ctrl-btn svg { flex-shrink: 0; opacity: 0.65; }

/* Dropdown menus */
.ctrl-dropdown { position: relative; }
.ctrl-menu {
  position: absolute; top: calc(100% + 6px); right: 0;
  background: var(--color-bg-modal);
  -webkit-backdrop-filter: var(--blur-modal);
  backdrop-filter: var(--blur-modal);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); box-shadow: var(--color-shadow-modal);
  padding: 6px; min-width: 140px;
  display: none; flex-direction: column; gap: 2px;
  z-index: 300; animation: menu-in var(--dur-base) var(--ease-spring) both;
}
.ctrl-menu.open { display: flex; }

@keyframes menu-in {
  from { opacity: 0; transform: scale(0.92) translateY(-6px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

.menu-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: var(--radius-md);
  font-size: 13px; font-weight: 500; font-family: inherit;
  color: var(--color-text-primary); background: none; border: none;
  cursor: pointer; width: 100%; text-align: left;
  transition: background var(--dur-fast);
}
.menu-item:hover { background: var(--color-bg-input); }
.menu-item.active { color: var(--color-accent-blue); font-weight: 600; }
.menu-item .check { margin-left: auto; opacity: 0; color: var(--color-accent-blue); font-size: 12px; }
.menu-item.active .check { opacity: 1; }

/* ══════════════════════════════════════════════════════════
   MAIN CONTENT
   ══════════════════════════════════════════════════════════ */
main {
  flex: 1; display: flex; flex-direction: column;
  max-width: 1140px; width: 100%;
  margin: 0 auto; padding: 36px 32px 40px;
}

/* ── Loading state ───────────────────────────────────────── */
.loading-state {
  text-align: center; padding: 80px 20px;
  font-size: 13px; color: var(--color-text-tertiary);
}

/* ── Billing toggle ──────────────────────────────────────── */
.billing-row { display: flex; justify-content: center; margin-bottom: 32px; }
.billing-toggle {
  display: inline-flex; background: var(--color-bg-toggle);
  border-radius: var(--radius-pill); padding: 4px; gap: 3px;
  border: 1px solid var(--color-border);
}
.interval-btn {
  padding: 9px 24px; border-radius: var(--radius-pill); border: none;
  font-family: inherit; font-size: 14px; font-weight: 600;
  color: var(--color-text-secondary); background: transparent; cursor: pointer;
  transition:
    background var(--dur-base) var(--ease-smooth),
    color var(--dur-base) var(--ease-smooth),
    box-shadow var(--dur-base) var(--ease-smooth);
}
.interval-btn.active {
  background: var(--color-accent-blue); color: #ffffff;
  box-shadow: 0 2px 10px rgba(0,122,255,0.30);
}

/* ── Plans grid ──────────────────────────────────────────── */
.plans-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; align-items: stretch; margin-bottom: 36px;
}
@media (max-width: 820px) {
  .plans-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto 32px; width: 100%; }
}

/* ── Plan card ───────────────────────────────────────────── */
.plan-card {
  position: relative;
  background: var(--color-bg-card);
  -webkit-backdrop-filter: var(--blur-card);
  backdrop-filter: var(--blur-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl); padding: 32px 28px 26px;
  box-shadow: var(--color-shadow-card);
  display: flex; flex-direction: column;
  transition:
    transform var(--dur-base) var(--ease-spring),
    border-color var(--dur-base) var(--ease-smooth),
    box-shadow var(--dur-base) var(--ease-smooth),
    background var(--dur-slow) var(--ease-smooth);
}
.plan-card:hover { transform: translateY(-4px); box-shadow: 0 16px 44px rgba(0,0,0,0.13); }
.plan-card.thinker:hover    { border-color: var(--color-accent-blue); }
.plan-card.creator          { border-color: var(--color-accent-purple); border-width: 2px; }
.plan-card.strategist:hover { border-color: var(--color-accent-amber); }

.plan-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--color-gradient-creator); color: #fff;
  font-size: 10px; font-weight: 700; letter-spacing: 0.08em;
  padding: 4px 14px; border-radius: var(--radius-pill); white-space: nowrap;
  box-shadow: 0 3px 12px rgba(94,92,230,0.35);
}

.plan-name { font-size: 22px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 4px; }
.thinker    .plan-name { color: var(--color-accent-blue);   }
.creator    .plan-name { color: var(--color-accent-purple); }
.strategist .plan-name { color: var(--color-accent-amber);  }

.plan-tagline { font-size: 13px; color: var(--color-text-tertiary); margin-bottom: 20px; }

.plan-price {
  font-size: 44px; font-weight: 700; letter-spacing: -1.5px; line-height: 1;
}
.plan-period {
  font-size: 12px; color: var(--color-text-tertiary);
  margin-top: 5px; margin-bottom: 20px; min-height: 16px;
}

.plan-features {
  list-style: none; display: flex; flex-direction: column;
  gap: 11px; margin-bottom: 28px; flex: 1;
}
.plan-features li {
  font-size: 13.5px; color: var(--color-text-secondary);
  display: flex; align-items: flex-start; gap: 9px; line-height: 1.45;
}
.plan-features li::before {
  content: '✓'; font-weight: 700; flex-shrink: 0; margin-top: 1px; font-size: 12px;
}
.thinker    .plan-features li::before { color: var(--color-accent-blue);   }
.creator    .plan-features li::before { color: var(--color-accent-purple); }
.strategist .plan-features li::before { color: var(--color-accent-amber);  }

.btn-cta {
  display: block; width: 100%; padding: 13px; border: none;
  border-radius: var(--radius-lg); font-family: inherit; font-size: 15px; font-weight: 600;
  color: #ffffff; cursor: pointer;
  transition: opacity var(--dur-fast), transform var(--dur-fast) var(--ease-spring);
  letter-spacing: -0.1px; margin-top: auto;
}
.btn-cta:hover  { opacity: 0.86; transform: scale(1.015); }
.btn-cta:active { transform: scale(0.98); }
.thinker    .btn-cta { background: var(--color-gradient-thinker); }
.creator    .btn-cta { background: var(--color-gradient-creator); box-shadow: 0 4px 16px rgba(94,92,230,0.30); }
.strategist .btn-cta { background: var(--color-gradient-strategist); }

/* ── Promo section ───────────────────────────────────────── */
.promo-section { display: flex; flex-direction: column; align-items: center; gap: 16px; }

.promo-row { display: flex; align-items: center; gap: 10px; }
.promo-input {
  background: var(--color-bg-input); border: 1px solid var(--color-border);
  color: var(--color-text-primary); border-radius: var(--radius-md);
  padding: 10px 14px; font-size: 14px; font-family: inherit;
  width: 200px; transition: border-color var(--dur-fast);
}
.promo-input::placeholder { color: var(--color-text-tertiary); }
.promo-input:focus { outline: none; border-color: var(--color-accent-blue); }

.btn-apply {
  background: var(--color-accent-blue); color: #fff; border: none;
  border-radius: var(--radius-md); padding: 10px 16px;
  font-size: 14px; font-weight: 600; font-family: inherit;
  cursor: pointer; transition: opacity var(--dur-fast);
}
.btn-apply:hover { opacity: 0.85; }
.promo-status { font-size: 13px; color: var(--color-text-tertiary); }

/* ── Lifetime offer banner ───────────────────────────────── */
.lifetime-banner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; width: 100%;
  background: var(--color-bg-card);
  -webkit-backdrop-filter: var(--blur-card);
  backdrop-filter: var(--blur-card);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  padding: 20px 28px; box-shadow: var(--color-shadow-card);
  transition: background var(--dur-slow) var(--ease-smooth);
}
.lifetime-left { display: flex; align-items: center; gap: 16px; }
.lifetime-badge {
  background: linear-gradient(135deg, #ff6b00, #ff9500); color: #fff;
  font-size: 10px; font-weight: 700; letter-spacing: 0.08em;
  padding: 5px 12px; border-radius: var(--radius-pill); white-space: nowrap;
  flex-shrink: 0; box-shadow: 0 2px 8px rgba(255,107,0,0.35);
}
.lifetime-text { display: flex; flex-direction: column; gap: 4px; }
.lifetime-price {
  font-size: 26px; font-weight: 700; letter-spacing: -0.5px;
  color: var(--color-text-primary); line-height: 1;
}
.lifetime-desc { font-size: 12px; color: var(--color-text-tertiary); }
.lifetime-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.btn-lifetime {
  padding: 11px 22px; border-radius: var(--radius-lg); font-family: inherit;
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: opacity var(--dur-fast), transform var(--dur-fast) var(--ease-spring);
  border: none; white-space: nowrap;
}
.btn-lifetime:hover  { opacity: 0.85; transform: scale(1.015); }
.btn-lifetime:active { transform: scale(0.98); }
.btn-lifetime-pay  {
  background: linear-gradient(135deg, #ff6b00, #ff9500); color: #fff;
  box-shadow: 0 3px 12px rgba(255,107,0,0.30);
}
.btn-lifetime-info {
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.btn-lifetime-info:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text-primary); opacity: 1;
}

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  text-align: center; padding: 22px 20px;
  color: var(--color-text-tertiary); font-size: 12px;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-chrome);
  -webkit-backdrop-filter: var(--blur-chrome);
  backdrop-filter: var(--blur-chrome);
  position: relative; z-index: 1;
}
.site-footer a { color: var(--color-accent-blue); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.40);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  z-index: 500; padding: 24px;
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-smooth);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal-sheet {
  background: var(--color-bg-modal);
  -webkit-backdrop-filter: var(--blur-modal);
  backdrop-filter: var(--blur-modal);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  box-shadow: var(--color-shadow-modal); padding: 28px;
  width: 100%; max-width: 400px;
  transform: scale(0.94) translateY(10px);
  transition: transform var(--dur-base) var(--ease-spring);
}
.modal-overlay.open .modal-sheet { transform: scale(1) translateY(0); }

.modal-heading {
  font-size: 20px; font-weight: 700; letter-spacing: -0.4px; margin-bottom: 5px;
}
.modal-subheading {
  font-size: 13px; color: var(--color-text-tertiary); margin-bottom: 20px;
}
.modal-input {
  width: 100%; padding: 12px 14px;
  background: var(--color-bg-input); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); font-family: inherit; font-size: 15px;
  color: var(--color-text-primary); margin-bottom: 10px;
  transition: border-color var(--dur-fast);
}
.modal-input::placeholder { color: var(--color-text-tertiary); }
.modal-input:focus { outline: none; border-color: var(--color-accent-blue); }
.modal-error { font-size: 12px; color: #ff3b30; margin-bottom: 10px; min-height: 16px; }

.modal-actions { display: flex; gap: 8px; }
.btn-modal-cancel {
  flex: 1; padding: 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); background: var(--color-bg-input);
  color: var(--color-text-secondary); font-family: inherit;
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: background var(--dur-fast), color var(--dur-fast);
}
.btn-modal-cancel:hover { background: var(--color-bg-card-hover); color: var(--color-text-primary); }
.btn-modal-confirm {
  flex: 1; padding: 12px; border: none; border-radius: var(--radius-lg);
  background: var(--color-accent-blue); color: #fff;
  font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  transition: opacity var(--dur-fast);
}
.btn-modal-confirm:hover    { opacity: 0.85; }
.btn-modal-confirm:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Utility ─────────────────────────────────────────────── */
.hidden { display: none !important; }

@media (max-width: 600px) {
  .top-bar-inner { grid-template-columns: 1fr auto; }
  .typing-banner { display: none; }
  main { padding: 24px 16px 32px; }
  .modal-sheet { padding: 24px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}