/* =============================================
   CSS CUSTOM PROPERTIES — DARK (default)
   ============================================= */

:root, [data-theme="dark"] {
  --bg:                  #0a0a12;
  --surface:             rgba(255,255,255,0.05);
  --surface-2:           rgba(255,255,255,0.08);
  --border:              rgba(255,255,255,0.08);
  --border-mid:          rgba(255,255,255,0.15);
  --text-1:              #e2e8f0;
  --text-2:              rgba(226,232,240,0.5);
  --text-3:              rgba(226,232,240,0.28);
  --c-violet:            #c4b5fd;
  --c-violet-bg:         rgba(124,58,237,0.12);
  --c-violet-border:     rgba(167,139,250,0.45);
  --c-green:             #34d399;
  --c-red:               #f87171;
  --c-orange:            #fb923c;
  --c-blue:              #60a5fa;
  --c-delete:            rgba(248,113,113,0.65);
  --c-link:              rgba(196,181,253,0.65);
  --nav-bg:              rgba(10,10,18,0.92);
  --nav-border:          rgba(255,255,255,0.07);
  --input-bg:            rgba(255,255,255,0.05);
  --input-border:        rgba(255,255,255,0.08);
  --input-text:          rgba(226,232,240,0.85);
  --modal-bg:            #0f0f1c;
  --color-scheme:        dark;
  /* Burn hero */
  --burn-bg:             linear-gradient(135deg, #2e1065, #1e1b4b);
  --burn-glow:           rgba(124,58,237,0.35);
  --burn-text:           #ffffff;
  --burn-label:          rgba(255,255,255,0.55);
  --burn-sub:            rgba(255,255,255,0.38);
  /* Badges */
  --badge-monthly-bg:    rgba(96,165,250,0.15);
  --badge-monthly-text:  #93c5fd;
  --badge-annual-bg:     rgba(52,211,153,0.15);
  --badge-annual-text:   #6ee7b7;
}

/* =============================================
   CSS CUSTOM PROPERTIES — LIGHT
   ============================================= */

[data-theme="light"] {
  --bg:                  #f1f5f9;
  --surface:             #ffffff;
  --surface-2:           #f8fafc;
  --border:              #e2e8f0;
  --border-mid:          #cbd5e1;
  --text-1:              #1e293b;
  --text-2:              #64748b;
  --text-3:              #94a3b8;
  --c-violet:            #7c3aed;
  --c-violet-bg:         #ede9fe;
  --c-violet-border:     #7c3aed;
  --c-green:             #059669;
  --c-red:               #dc2626;
  --c-orange:            #d97706;
  --c-blue:              #3b82f6;
  --c-delete:            #dc2626;
  --c-link:              #7c3aed;
  --nav-bg:              rgba(255,255,255,0.95);
  --nav-border:          #e2e8f0;
  --input-bg:            #f8fafc;
  --input-border:        #e2e8f0;
  --input-text:          #1e293b;
  --modal-bg:            #ffffff;
  --color-scheme:        light;
  /* Burn hero */
  --burn-bg:             linear-gradient(135deg, #ede9fe, #ddd6fe);
  --burn-glow:           rgba(124,58,237,0.12);
  --burn-text:           #3730a3;
  --burn-label:          #7c3aed;
  --burn-sub:            rgba(55,48,163,0.55);
  /* Badges */
  --badge-monthly-bg:    #eff6ff;
  --badge-monthly-text:  #3b82f6;
  --badge-annual-bg:     #f0fdf4;
  --badge-annual-text:   #059669;
}

/* =============================================
   BASE
   ============================================= */

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

html { background: var(--bg); }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text-1);
  overscroll-behavior: none;
  transition: background 0.25s ease, color 0.2s ease;
}

.app-shell {
  background: var(--bg);
  transition: background 0.25s ease;
}

/* =============================================
   UTILITY CLASSES  (use in JS-rendered HTML)
   ============================================= */

.label-sm {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

.c-text-1   { color: var(--text-1); }
.c-text-2   { color: var(--text-2); }
.c-text-3   { color: var(--text-3); }
.c-violet   { color: var(--c-violet); }
.c-green    { color: var(--c-green); }
.c-red      { color: var(--c-red); }
.c-orange   { color: var(--c-orange); }
.c-blue     { color: var(--c-blue); }
.c-delete   { color: var(--c-delete); }
.c-link     { color: var(--c-link); }
.c-surface  { background: var(--surface);   border: 1px solid var(--border); }
.c-surface-2{ background: var(--surface-2); }

/* =============================================
   LIGHT MODE: OVERRIDE TAILWIND WHITE CLASSES
   ============================================= */

[data-theme="light"] .text-white           { color: var(--text-1) !important; }
[data-theme="light"] .text-white\/85       { color: rgba(30,41,59,0.9) !important; }
[data-theme="light"] .text-white\/80       { color: rgba(30,41,59,0.85) !important; }
[data-theme="light"] .text-white\/70       { color: rgba(30,41,59,0.75) !important; }
[data-theme="light"] .text-white\/60       { color: rgba(30,41,59,0.65) !important; }
[data-theme="light"] .text-white\/50       { color: rgba(30,41,59,0.55) !important; }
[data-theme="light"] .text-white\/40       { color: rgba(30,41,59,0.45) !important; }
[data-theme="light"] .text-white\/30       { color: rgba(30,41,59,0.38) !important; }
[data-theme="light"] .text-white\/20       { color: rgba(30,41,59,0.25) !important; }
[data-theme="light"] .text-white\/10       { color: rgba(30,41,59,0.15) !important; }
[data-theme="light"] .bg-white\/5          { background: rgba(0,0,0,0.025) !important; }
[data-theme="light"] .border-white\/8      { border-color: rgba(0,0,0,0.09) !important; }
[data-theme="light"] .border-white\/10     { border-color: rgba(0,0,0,0.11) !important; }

[data-theme="light"] #inp-amount { color: var(--text-1) !important; }
[data-theme="light"] #inp-amount::placeholder { color: var(--text-3) !important; }
[data-theme="light"] #inp-name,
[data-theme="light"] #inp-notes,
[data-theme="light"] #inp-renews {
  background: var(--input-bg) !important;
  color: var(--input-text) !important;
  border-color: var(--input-border) !important;
}
[data-theme="light"] #inp-name::placeholder,
[data-theme="light"] #inp-notes::placeholder { color: var(--text-3) !important; }
[data-theme="light"] #inp-emoji {
  background: var(--surface-2) !important;
  border-color: var(--input-border) !important;
}

/* =============================================
   GLASS CARD
   ============================================= */

.glass-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  transition: background 0.25s ease, border-color 0.25s ease;
}

[data-theme="light"] .glass-card {
  box-shadow: 0 1px 4px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
}

/* =============================================
   AMOUNT CARD
   ============================================= */

.amount-card {
  position: relative;
  overflow: hidden;
}
.amount-card::before {
  content: '';
  position: absolute;
  top: -40px; left: -40px;
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(124,58,237,0.1) 0%, transparent 70%);
  pointer-events: none;
}

/* =============================================
   BURN HERO CARD
   ============================================= */

.burn-hero {
  position: relative;
  overflow: hidden;
  background: var(--burn-bg);
  border: 1px solid var(--border);
  box-shadow: 0 0 48px var(--burn-glow);
  transition: all 0.3s ease;
}
.burn-hero::after {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.burn-amount { color: var(--burn-text); }
.burn-label  { color: var(--burn-label); }
.burn-sub    { color: var(--burn-sub); }

/* =============================================
   SCREEN TRANSITIONS
   ============================================= */

.screen { animation: fadeSlideIn 0.2s ease; }

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =============================================
   THEME TOGGLE BUTTON
   ============================================= */

.theme-toggle {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.theme-toggle:hover  { background: var(--surface-2); border-color: var(--border-mid); transform: scale(1.06); }
.theme-toggle:active { transform: scale(0.9); }

/* =============================================
   BOTTOM NAV
   ============================================= */

.bottom-nav {
  background: var(--nav-bg);
  border-top: 1px solid var(--nav-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding-bottom: env(safe-area-inset-bottom, 0);
  transition: background 0.25s ease, border-color 0.25s ease;
}
.nav-btn {
  color: var(--text-3);
  transition: color 0.15s, transform 0.12s;
}
.nav-btn:active { transform: scale(0.92); }
.nav-btn.nav-active { color: var(--c-violet); }
[data-theme="dark"]  .nav-btn.nav-active .nav-icon { filter: drop-shadow(0 0 5px rgba(167,139,250,0.7)); }
[data-theme="light"] .nav-btn.nav-active .nav-icon { filter: none; }
.nav-btn .nav-label { font-size: 10px; letter-spacing: 0.03em; }

/* =============================================
   SUBMIT BUTTON
   ============================================= */

.submit-btn {
  background: linear-gradient(135deg, #7c3aed, #9333ea);
  border: 1px solid rgba(255,255,255,0.12);
  transition: all 0.15s;
}
[data-theme="dark"]  .submit-btn { box-shadow: 0 0 32px rgba(124,58,237,0.4), 0 4px 20px rgba(124,58,237,0.2); }
[data-theme="light"] .submit-btn { box-shadow: 0 4px 16px rgba(124,58,237,0.35), 0 2px 8px rgba(124,58,237,0.2); border-color: transparent; }
.submit-btn:hover    { filter: brightness(1.08); }
.submit-btn:active   { transform: scale(0.97); filter: brightness(0.95); }
.submit-btn:disabled { opacity: 0.3; box-shadow: none; filter: none; }

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

.cycle-btn {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-3);
  transition: all 0.15s;
}
.cycle-btn:active { transform: scale(0.95); }
.cycle-active {
  background: var(--c-violet-bg) !important;
  border-color: var(--c-violet-border) !important;
  color: var(--c-violet) !important;
}
[data-theme="dark"] .cycle-active { box-shadow: 0 0 16px rgba(124,58,237,0.15); }

/* =============================================
   CATEGORY + EMOJI CHIPS
   ============================================= */

.chip-btn {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-2);
  transition: all 0.15s;
}
.chip-btn:active { transform: scale(0.93); }
.chip-active {
  background: var(--c-violet-bg) !important;
  border-color: var(--c-violet-border) !important;
  color: var(--c-violet) !important;
}
[data-theme="dark"] .chip-active { box-shadow: 0 0 12px rgba(124,58,237,0.12); }

/* =============================================
   SUBSCRIPTION CARD
   ============================================= */

.sub-card {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  touch-action: pan-y;
  user-select: none;
  transition: border-color 0.15s, background 0.25s ease;
}
.sub-card:hover { border-color: var(--border-mid); }
[data-theme="light"] .sub-card {
  box-shadow: 0 1px 4px rgba(0,0,0,0.05), 0 2px 8px rgba(0,0,0,0.03);
}

.sub-card-inner {
  position: relative;
  z-index: 1;
  background: var(--surface);
  border-radius: 18px;
  transition: transform 0.15s ease, background 0.25s ease;
}

.swipe-delete-action {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 80px;
  background: linear-gradient(135deg, #ef4444, #dc2626);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  cursor: pointer;
  border-radius: 0 18px 18px 0;
}

/* =============================================
   SUB EMOJI
   ============================================= */

.sub-emoji {
  width: 40px; height: 40px;
  min-width: 40px;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  line-height: 1;
  transition: background 0.25s ease;
}

/* =============================================
   BADGES
   ============================================= */

.badge-monthly {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--badge-monthly-bg);
  color: var(--badge-monthly-text);
  padding: 2px 6px;
  border-radius: 4px;
}

.badge-annual {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--badge-annual-bg);
  color: var(--badge-annual-text);
  padding: 2px 6px;
  border-radius: 4px;
}

/* =============================================
   TOGGLE BUTTON (active/pause)
   ============================================= */

.toggle-btn {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: none;
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}
.toggle-on {
  background: var(--c-violet-bg);
  color: var(--c-violet);
}
.toggle-off {
  background: var(--surface-2);
  color: var(--text-3);
}
.toggle-btn:active { transform: scale(0.85); }

/* =============================================
   MODAL
   ============================================= */

.modal-cancel {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: all 0.15s;
}
.modal-cancel:hover { border-color: var(--border-mid); }

.modal-sheet {
  background: var(--modal-bg);
  border: 1px solid var(--border);
  border-bottom: none;
  transition: background 0.25s ease;
}
[data-theme="dark"]  .modal-sheet { box-shadow: 0 -20px 60px rgba(0,0,0,0.6); }
[data-theme="light"] .modal-sheet { box-shadow: 0 -4px 24px rgba(0,0,0,0.1); }

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

#inp-renews { color-scheme: var(--color-scheme); }
input[type="date"]::-webkit-calendar-picker-indicator { opacity: 0.4; cursor: pointer; }

#inp-amount::-webkit-outer-spin-button,
#inp-amount::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
#inp-amount[type=number] { -moz-appearance: textfield; }

/* =============================================
   SCROLLBAR
   ============================================= */

::-webkit-scrollbar { width: 3px; height: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* =============================================
   SAFE AREA
   ============================================= */

.screen { padding-top: env(safe-area-inset-top, 0); }

/* =============================================
   WELCOME SCREEN
   ============================================= */

.welcome-screen { background: var(--bg); transition: opacity 0.45s ease, transform 0.45s ease; }
.welcome-exit { opacity: 0; transform: scale(0.97); pointer-events: none; }

.welcome-orb { position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none; }
.welcome-orb-1 {
  width: 340px; height: 340px; top: -80px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(124,58,237,0.18) 0%, transparent 70%);
  animation: orbFloat1 8s ease-in-out infinite;
}
.welcome-orb-2 {
  width: 260px; height: 260px; bottom: 60px; right: -60px;
  background: radial-gradient(circle, rgba(236,72,153,0.12) 0%, transparent 70%);
  animation: orbFloat2 10s ease-in-out infinite;
}
@keyframes orbFloat1 {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(20px); }
}
@keyframes orbFloat2 {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-24px); }
}

.welcome-content { transition: transform 0.6s cubic-bezier(.34,1.1,.64,1); }
.welcome-content.btn-shown { transform: translateY(-28px); }

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.wu-icon     { animation: welcomeBounce 0.7s 0.05s cubic-bezier(.34,1.56,.64,1) both; }
.wu-title    { animation: fadeSlideUp 0.55s 0.25s ease both; }
.wu-sub      { animation: fadeSlideUp 0.55s 0.4s  ease both; }
.wu-features { animation: fadeSlideUp 0.55s 0.55s ease both; }
.wu-legal    { animation: fadeSlideUp 0.4s  0.1s  ease both; }

.welcome-icon-wrap {
  position: relative; width: 96px; height: 96px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 28px;
}
.welcome-icon-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 1.5px solid rgba(124,58,237,0.35);
  box-shadow: 0 0 40px rgba(124,58,237,0.2), inset 0 0 30px rgba(124,58,237,0.05);
  animation: ringPulse 3s ease-in-out infinite;
}
@keyframes ringPulse {
  0%, 100% { box-shadow: 0 0 40px rgba(124,58,237,0.2), inset 0 0 30px rgba(124,58,237,0.05); }
  50%       { box-shadow: 0 0 56px rgba(124,58,237,0.35), inset 0 0 40px rgba(124,58,237,0.10); }
}
.welcome-icon-emoji { font-size: 48px; line-height: 1; position: relative; z-index: 1; }

.welcome-title {
  font-size: 48px; font-weight: 800; letter-spacing: -1.5px; line-height: 1; margin-bottom: 12px;
  background: linear-gradient(135deg, #fff 40%, rgba(255,255,255,0.6));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.welcome-sub {
  font-size: 15px; line-height: 1.6; color: rgba(255,255,255,0.35);
  margin-bottom: 32px; font-weight: 400;
}
.welcome-features {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: center;
  font-size: 12px; color: rgba(255,255,255,0.3); margin-bottom: 40px; font-weight: 500;
}
.welcome-dot { opacity: 0.4; }
.welcome-legal { margin-top: 20px; font-size: 11px; color: rgba(255,255,255,0.18); line-height: 1.5; }

@keyframes welcomeBounce {
  0%   { transform: scale(0.4) rotate(-8deg); opacity: 0; }
  60%  { transform: scale(1.1) rotate(3deg);  opacity: 1; }
  80%  { transform: scale(0.96) rotate(-1deg); }
  100% { transform: scale(1) rotate(0deg);    opacity: 1; }
}

/* =============================================
   SIGN-IN BUTTON
   ============================================= */

.signin-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  background: #fff; color: #111;
  padding: 15px 32px; border-radius: 100px; width: 100%; max-width: 280px;
  font-size: 15px; font-weight: 600; border: none; cursor: pointer;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.1), 0 8px 32px rgba(0,0,0,0.4), 0 0 48px rgba(124,58,237,0.2);
  opacity: 0; transform: translateY(32px); pointer-events: none;
  transition: opacity 0.55s cubic-bezier(.34,1.1,.64,1),
              transform 0.6s cubic-bezier(.34,1.4,.64,1),
              box-shadow 0.15s;
}
.signin-btn.signin-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.signin-btn:hover  { box-shadow: 0 0 0 1px rgba(255,255,255,0.15), 0 12px 40px rgba(0,0,0,0.5), 0 0 60px rgba(124,58,237,0.3); }
.signin-btn:active { transform: scale(0.97); }

/* =============================================
   USER AVATAR (header button)
   ============================================= */

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-violet-bg);
  border: 1.5px solid var(--c-violet-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
  padding: 0;
}
.user-avatar:active { transform: scale(0.9); }
.user-avatar img    { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }

/* =============================================
   USER AVATAR LARGE (profile sheet)
   ============================================= */

.user-avatar-large {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--c-violet-bg);
  border: 1.5px solid var(--c-violet-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}