/* ============================================================
   Theme variables (Telegram dark theme)
   ============================================================ */
:root {
  --color-background: #212121;
  --color-background-compact-menu: #212121dd;
  --color-background-compact-menu-hover: #0006;
  --color-text: #ffffff;
  --color-text-secondary: #aaaaaa;
  --color-borders-input: #5b5b5a;
  --color-placeholders: #a2acb4;
  --color-primary: #8774e1;
  --color-primary-shade-rgb: 123, 113, 198;
  --color-primary-shade-darker: #6b62b0;
  --color-default-shadow: #1010109c;
  --color-white: #fff;
  --color-error: #e53935;
  --border-radius-default: 1rem;
  --border-radius-button: 1.75rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-family: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans",
    "Helvetica Neue", sans-serif;
  --z-menu-bubble: 21;
  --z-country-code-input-group: 10;
  --input-group-margin: 1.125rem;
}

/* ============================================================
   Global resets
   ============================================================ */
*,
*::before,
*::after { box-sizing: border-box; }

a,
area,
button,
[role="button"],
input:not([type="range"]),
label,
select,
summary,
textarea { touch-action: manipulation; }

label { margin-bottom: 0.5rem; display: inline-block; }

p, ol, ul, dl { margin-top: 0; margin-bottom: 1rem; }

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-medium);
  margin-top: 0;
  margin-bottom: 0.5rem;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   Screens / scroll containers
   ============================================================ */
.custom-scroll {
  pointer-events: auto;
  scrollbar-width: thin;
}

#auth-phone-number-form,
#auth-code-form,
#auth-password-form {
  height: 100%;
  overflow-y: auto;
}

#auth-phone-number-form.hidden,
#auth-code-form.hidden,
#auth-password-form.hidden { display: none; }

/* ============================================================
   Auth form (centered column)
   ============================================================ */
.auth-form {
  text-align: center;
  width: 100%;
  max-width: 25.5rem;
  margin: 0 auto;
  padding: 6rem 1rem 1rem;
}

/* ============================================================
   Logo (phone screen)
   ============================================================ */
.auth-form #logo {
  width: 7.5rem;
  height: 7.5rem;
  margin: 0 auto 1.75rem;
  display: block;
  background: url(./telegram-logo.svg) 50% center / 100% no-repeat;
}

/* ============================================================
   Monkey (code + password screens)
   ============================================================ */
#monkey {
  width: 7.5rem;
  height: 7.5rem;
  margin: 0 auto 1.75rem;
  display: block;
  position: relative;
}

#monkey.big { width: 10rem; height: 10rem; }

#monkey .AnimatedSticker {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

#monkey .AnimatedSticker.hidden { display: none; }
#monkey .AnimatedSticker.shown  { display: block; }

#monkey .monkey-preview {
  background: url(./monkey.svg) 50% / 100% no-repeat;
  width: 100%;
  height: 100%;
}

@media (width >= 600px) and (height >= 450px) {
  #monkey { width: 10rem; height: 10rem; margin-bottom: 2.5rem; }
}

/* ============================================================
   Headings and notes
   ============================================================ */
.auth-form h1 { font-size: 1.25rem; line-height: 1; }

#auth-code-form h1 {
  justify-content: center;
  align-items: center;
  display: flex;
  gap: 0.25rem;
}

.auth-number-edit {
  cursor: pointer;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--color-text-secondary);
  opacity: 0.75;
  justify-content: center;
  align-items: center;
  padding: 0.5rem;
  font-size: 1.5rem;
  display: flex;
}

.auth-number-edit:hover,
.auth-number-edit:focus { opacity: 1; }

.auth-form .note {
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  font-size: 0.875rem;
  line-height: 1.35;
}

.auth-form .note b { font-weight: var(--font-weight-medium); }

/* ============================================================
   Dropdown menu (country picker)
   ============================================================ */
.DropdownMenu { position: relative; }

.Menu .bubble {
  z-index: var(--z-menu-bubble);
  transform: scale(0.85);
  border-radius: var(--border-radius-default);
  min-width: 13.5rem;
  color: var(--color-text);
  background-color: var(--color-background);
  box-shadow: 0 0.25rem 0.5rem 0.125rem var(--color-default-shadow);
  padding: 0.5rem 0;
  display: block;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  overflow: hidden;
  transition: opacity 0.15s cubic-bezier(0.2, 0, 0.2, 1),
              transform 0.15s cubic-bezier(0.2, 0, 0.2, 1);
}

.Menu .bubble.open { transform: scale(1); }

.Menu.compact .bubble {
  background: var(--color-background-compact-menu);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  padding: 0.25rem 0;
}

.CountryCodeInput .input-group {
  cursor: pointer;
  z-index: var(--z-country-code-input-group);
}

.CountryCodeInput .bubble {
  transform-origin: top;
  width: 100%;
  max-height: 23.5rem;
  overflow-y: auto;
}

.CountryCodeInput .country-flag {
  margin-right: 1rem;
  font-size: 2rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
}

.CountryCodeInput .country-flag .emoji {
  width: 2rem;
  height: 2rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.CountryCodeInput .country-name {
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-right: 1rem;
  overflow: hidden;
}

.CountryCodeInput .country-code {
  opacity: 0.5;
  margin-left: auto;
  padding-right: 0.25rem;
}

/* ============================================================
   Menu items
   ============================================================ */
.MenuItem {
  cursor: pointer;
  width: 100%;
  color: var(--color-text);
  white-space: nowrap;
  background: none;
  align-items: center;
  padding: 0.75rem 1rem;
  line-height: 1.5rem;
  display: flex;
  border: none;
  outline: none;
  text-align: left;
}

.MenuItem.compact {
  padding: 0.25rem;
  width: auto;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  border-radius: 0.75rem;
  margin: 0.125rem 0.25rem;
  padding-inline-end: 0.75rem;
  transition: transform 0.15s ease-in-out;
  transform: scale(1);
}

.MenuItem.text-only {
  padding-inline: 0.5rem;
  line-height: 1.375;
}

.MenuItem.compact:hover,
.MenuItem.compact:focus {
  background: var(--color-background-compact-menu-hover);
  text-decoration: none;
}

.MenuItem.compact:active { transform: scale(0.98); }

.MenuItem.selected { color: var(--color-primary); }

/* ============================================================
   Opacity transition (open/close)
   ============================================================ */
.opacity-transition {
  opacity: 1;
  transition: opacity 0.15s;
}
.opacity-transition.not-open  { opacity: 0; }
.opacity-transition.not-shown { display: none; }
.opacity-transition.slow      { transition-duration: 0.3s; }

/* ============================================================
   Inputs
   ============================================================ */
.input-group {
  margin-bottom: var(--input-group-margin, 1.125rem);
  position: relative;
}

.form-control {
  --border-width: 1px;
  width: 100%;
  height: 3rem;
  color: var(--color-text);
  overflow-wrap: anywhere;
  appearance: none;
  background-color: var(--color-background);
  font-size: 1rem;
  line-height: 1.25rem;
  display: block;
  padding: calc(0.75rem - var(--border-width))
           calc(1.1875rem - var(--border-width))
           0.6875rem;
  border: var(--border-width) solid var(--color-borders-input);
  border-radius: var(--border-radius-default);
  outline: none;
  transition: border-color 0.15s;
}

.form-control:hover { border-color: var(--color-primary); }
.form-control:hover + label { color: var(--color-primary); }

.form-control:focus,
.form-control.focus {
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-primary);
  caret-color: var(--color-primary);
}

.form-control:focus + label,
.form-control.focus + label { color: var(--color-primary); }

.input-group label {
  pointer-events: none;
  cursor: text;
  transform-origin: 0 center;
  font-size: 1rem;
  font-weight: var(--font-weight-normal);
  color: var(--color-placeholders);
  background-color: var(--color-background);
  display: block;
  position: absolute;
  top: 0.6875rem;
  left: 1rem;
  white-space: nowrap;
  border-radius: 1rem;
  padding: 0 0.5rem;
  transition: transform 0.15s ease-out, color 0.15s ease-out;
}

.input-group.touched label,
.input-group.error label,
.input-group.success label,
.input-group .form-control:focus + label,
.input-group .form-control.focus + label {
  transform: scale(0.75) translateY(-2rem);
}

.input-group.touched label { color: var(--color-text-secondary); }

/* Country input has more padding for the arrow */
.CountryCodeInput .input-group .form-control {
  padding-right: 3rem;
}

.CountryCodeInput .input-group .css-icon-down {
  border: 2px solid var(--color-text-secondary);
  border-top: 0;
  border-left: 0;
  width: 0.75rem;
  height: 0.75rem;
  position: absolute;
  top: 1rem;
  right: 1rem;
  transform: scaleY(1) rotate(45deg);
  transition: transform 0.2s, top 0.2s, border-color 0.2s;
  pointer-events: none;
}

.CountryCodeInput .input-group .css-icon-down.open {
  border-color: var(--color-primary);
  top: 1.3125rem;
  transform: scaleY(-1) rotate(45deg);
}

/* ============================================================
   Error state
   ============================================================ */
.input-group.error .form-control {
  border-color: var(--color-error);
  box-shadow: inset 0 0 0 1px var(--color-error);
  caret-color: var(--color-error);
}

.input-group.error label { color: var(--color-error) !important; }

.error-message {
  color: var(--color-error);
  font-size: 0.8125rem;
  text-align: left;
  margin-top: 0.375rem;
  padding: 0 0.5rem;
  line-height: 1.3;
}

/* ============================================================
   Password input with toggle
   ============================================================ */
.input-group.password-input { position: relative; }

.input-group.password-input .form-control {
  padding-right: 3.375rem;
}

.input-group.password-input .toggle-password {
  cursor: pointer;
  width: 3rem;
  height: 3rem;
  color: var(--color-text-secondary);
  opacity: 0.7;
  justify-content: center;
  align-items: center;
  font-size: 1.25rem;
  display: flex;
  position: absolute;
  top: 0;
  right: 0;
  outline: none !important;
}

.input-group.password-input .toggle-password:hover,
.input-group.password-input .toggle-password:focus { opacity: 1; }

/* ============================================================
   Checkbox (inline)
   ============================================================ */
.Checkbox {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.5rem;
  padding: 0;
  margin: 0.5rem 0 0;
  position: relative;
  text-align: left;
}

.Checkbox input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.Checkbox .Checkbox-main {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.Checkbox .Checkbox-main::before {
  content: "";
  width: 1.25rem;
  height: 1.25rem;
  border: 0.125rem solid var(--color-borders-input);
  background-color: var(--color-background);
  border-radius: 0.25rem;
  flex-shrink: 0;
  transition: border-color 0.1s, background-color 0.1s;
}

.Checkbox .Checkbox-main::after {
  content: "✓";
  color: var(--color-white);
  opacity: 0;
  font-size: 0.875rem;
  position: absolute;
  left: 0.25rem;
  top: 50%;
  transform: translateY(-50%);
  transition: opacity 0.1s;
  pointer-events: none;
}

.Checkbox input:checked ~ .Checkbox-main::before {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
}

.Checkbox input:checked ~ .Checkbox-main::after { opacity: 1; }

.Checkbox .Checkbox-main .label { line-height: 1.25rem; }

/* ============================================================
   Buttons
   ============================================================ */
.Button {
  cursor: pointer;
  border-radius: var(--border-radius-button);
  width: 100%;
  height: 3rem;
  font-weight: var(--font-weight-medium);
  font-size: 1rem;
  color: var(--button-text-color, #fff);
  text-transform: uppercase;
  background-color: var(--button-background-color, transparent);
  background-size: cover;
  border: 0;
  flex-shrink: 0;
  justify-content: center;
  align-items: center;
  padding: 0.5rem;
  line-height: 1.2;
  transition: background-color 0.2s, color 0.2s, opacity 0.2s;
  display: flex;
  position: relative;
  overflow: hidden;
  outline: none !important;
  text-decoration: none !important;
}

.Button.primary {
  --ripple-color: #00000014;
  --button-text-color: var(--color-white);
  --button-background-color: var(--color-primary);
  --button-active-text-color: var(--color-white);
  --button-active-background-color: rgba(var(--color-primary-shade-rgb), 0.9);
}

.Button:not(.disabled):not(:disabled):active,
.Button:not(.disabled):not(:disabled).active,
.Button:not(.disabled):not(:disabled):focus {
  color: var(--button-active-text-color, var(--button-text-color));
  background-color: var(--button-active-background-color, var(--button-background-color));
}

@media (hover: hover) {
  .Button:not(.disabled):not(:disabled):hover {
    color: var(--button-active-text-color, var(--button-text-color));
    background-color: var(--button-active-background-color, var(--button-background-color));
  }
}

.Button.disabled {
  opacity: 0.5 !important;
  pointer-events: none;
}

.auth-button { margin-top: 2.5rem; }
.auth-button + .auth-button { margin-top: 0.5rem; }

/* ============================================================
   Ripple effect
   ============================================================ */
.ripple-container {
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: inherit;
}

.ripple-container .ripple-wave {
  pointer-events: none;
  background-color: var(--ripple-color, #00000014);
  border-radius: 50%;
  animation: 0.7s ripple-animation;
  display: block;
  position: absolute;
  transform: scale(0);
}

@keyframes ripple-animation {
  0%   { opacity: 1; transform: scale(0); }
  50%  { opacity: 1; }
  100% { opacity: 0; transform: scale(2); }
}

/* ============================================================
   Icons (unicode fallback — replace with icon font later)
   ============================================================ */
.icon {
  font-style: normal;
  line-height: 1;
  display: inline-block;
}

.icon-edit::before        { content: "✎"; font-family: sans-serif; }
.icon-eye::before         { content: "👁"; font-family: sans-serif; }
.icon-eye-crossed::before { content: "🙈"; font-family: sans-serif; }

/* ============================================================
   Slide transition helpers (used by screens)
   ============================================================ */
.Transition {
  width: 100%;
  height: 100%;
  position: relative;
}

.Transition_slide {
  width: 100%;
  height: 100%;
  animation-fill-mode: forwards !important;
}

.Transition_slide-inactive { display: none !important; }

@keyframes slide-in {
  0%   { transform: translate(100%); }
  100% { transform: translate(0); }
}

@keyframes slide-out {
  0%   { transform: translate(0); }
  100% { transform: translate(-100%); }
}