/* ==========================================================================
   ÓRBITA — style.css
   Sistema de design com tokens.
   Estrutura:
     1. Tokens de cor
     2. Tema espacial (override)
     3. Tokens de tipografia
     4. Tokens de espaçamento e raio
     5. Reset e base
     6. Layout wrappers
     7. Header
     8. Fases (tabs)
     9. Timer (anel + centro)
     10. Controles (iniciar/reiniciar)
     11. Settings (durações, avanço)
     12. Stats
     13. Section titles
     14. Tasks
     15. Log
     16. Music links
     17. Wipe button
     18. Support
     19. Footer
     20. PIX modal
     21. Responsive
     22. Acessibilidade
   ========================================================================== */

/* ==========================================================================
   1. TOKENS DE COR
   ========================================================================== */
:root{
  /* Cores base */
  --deep: #172A33;
  --tide: #3E7285;
  --foam: #F4F1E9;
  --sand: #E8D9BE;
  --amber: #C9924F;
  --ink: #17232B;
  --ink-soft: rgba(23,35,43,0.62);
  --light-text: #F4F1E9;

  /* Superfícies */
  --panel-bg: rgba(23,42,51,0.05);
  --card-bg: rgba(255,255,255,0.55);
  --input-bg: #ffffff;

  /* Linhas */
  --divider: rgba(23,42,51,0.1);
  --border-soft: rgba(23,42,51,0.18);
  --ring-track: rgba(23,42,51,0.12);

  /* Overlays e sombras */
  --overlay: rgba(0,0,0,0.72);
  --shadow-soft: rgba(0,0,0,0.25);
  --shadow-modal: rgba(0,0,0,0.35);

  /* Sobre fundo escuro (rodapé de apoio) */
  --on-deep-border: rgba(244,241,233,0.35);
  --on-deep-fill: rgba(244,241,233,0.12);
  --on-deep-fill-hover: rgba(244,241,233,0.2);

  /* Estrelas e decoração de fundo */
  --star-color: #D7DEE6;
  --body-deco:
    radial-gradient(ellipse 60% 40% at 50% -10%, rgba(62,114,133,0.10), transparent 60%),
    repeating-linear-gradient(180deg, transparent 0 78px, rgba(23,42,51,0.035) 79px 80px);
}

/* ==========================================================================
   2. TEMA ESPACIAL
   ========================================================================== */
body.theme-space{
  --deep: #1B2430;
  --tide: #7FA8C9;
  --foam: #0B0F16;
  --sand: #232B38;
  --amber: #8D7BA8;
  --ink: #D7DEE6;
  --ink-soft: rgba(215,222,230,0.55);
  --light-text: #E8ECF1;

  --panel-bg: rgba(255,255,255,0.06);
  --card-bg: rgba(255,255,255,0.04);
  --input-bg: rgba(255,255,255,0.06);

  --divider: rgba(255,255,255,0.12);
  --border-soft: rgba(255,255,255,0.16);
  --ring-track: rgba(255,255,255,0.08);

  --body-deco: radial-gradient(ellipse 70% 50% at 50% -10%, rgba(127,168,201,0.09), transparent 60%);
}

/* ==========================================================================
   3. TOKENS DE TIPOGRAFIA
   ========================================================================== */
:root{
  --font-body: 'Work Sans', sans-serif;
  --font-display: 'Fraunces', serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-xs:   0.8rem;   /* labels, footer, metadados */
  --text-sm:   0.9rem;   /* texto secundário, tarefas */
  --text-base: 1rem;     /* texto geral, botões — ajuste global do tamanho-base */
  --text-md:   1.1rem;  /* subtítulos, section-title */
  --text-lg:   1.35rem;  /* pix-modal h2 */
  --text-xl:   1.5rem;   /* wordmark */
  --text-2xl:  1.9rem;   /* stat-value */
  --text-3xl:  2.45rem;  /* timer comprimido */
  --text-4xl:  3rem;     /* timer padrão */
}

/* ==========================================================================
   4. TOKENS DE ESPAÇAMENTO E RAIO
   ========================================================================== */
:root{
  --space-1: 0.25rem;  /*  4px */
  --space-2: 0.5rem;   /*  8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.5rem;   /* 24px */
  --space-6: 2rem;     /* 32px */
  --space-7: 3rem;     /* 48px */
  --space-8: 4rem;     /* 64px */

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 16px;
  --radius-pill: 999px;
}

/* ==========================================================================
   5. RESET E BASE
   ========================================================================== */
*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; }

body{
  background: var(--foam);
  color: var(--ink);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 var(--space-5) var(--space-7);
  position: relative;
  overflow-x: hidden;
  transition: background .6s ease, color .6s ease;
}

body::before{
  content: "";
  position: fixed;
  inset: 0;
  background: var(--body-deco);
  pointer-events: none;
  z-index: 0;
  transition: background .6s ease;
}
body::after{
  content: "";
  position: fixed;
  inset: -18%;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(ellipse 28% 18% at 18% 28%, rgba(127,168,201,0.08), transparent 72%),
    radial-gradient(ellipse 34% 20% at 82% 64%, rgba(141,123,168,0.07), transparent 72%);
  filter: blur(18px);
  animation: galaxy-drift 38s ease-in-out infinite alternate;
  transition: opacity 1.2s ease;
}
body.theme-space::after{ opacity: 1; }

#starfield{
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  pointer-events: none;
  animation: starfield-drift 48s ease-in-out infinite alternate;
}
body.theme-space #starfield{ opacity: 1; }

.star{
  position: absolute;
  width: 2px; height: 2px;
  border-radius: 50%;
  background: var(--star-color);
  opacity: 0.5;
  animation: twinkle var(--dur, 4s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes twinkle{ 0%,100%{opacity:0.15;} 50%{opacity:0.9;} }
@keyframes starfield-drift{
  from{ transform: translate3d(0, 0, 0) scale(1); }
  to{ transform: translate3d(0, -24px, 0) scale(1.02); }
}
@keyframes galaxy-drift{
  from{ transform: translate3d(-1%, 0, 0) rotate(-2deg); }
  to{ transform: translate3d(1%, -2%, 0) rotate(2deg); }
}

/* ==========================================================================
   6. LAYOUT WRAPPERS
   ========================================================================== */
header, main, footer{
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
}

.app-shell{
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: calc(100dvh - 120px);
  justify-content: center;
}

main{
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: var(--space-5);
  justify-content: center;
}

.left-panel, .right-panel{
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: var(--space-4);
}
.right-panel{ align-items: stretch; }
.left-column{
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ==========================================================================
   7. HEADER
   ========================================================================== */
header{
  padding: var(--space-6) 0 var(--space-2);
  text-align: center;
}

.wordmark{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-3xl);
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
}
.wordmark a{
  color: inherit;
  text-decoration: none;
}
.wordmark .mark{
  font-size: var(--text-md);
  display: inline-block;
  transition: opacity .3s ease;
}

.header-subtitle{
  font-size: var(--text-xs);
  color: var(--ink-soft);
  margin-top: var(--space-2);
}

.tagline{
  font-size: var(--text-sm);
  color: var(--ink-soft);
  margin-top: var(--space-4);
  font-style: italic;
  font-family: var(--font-display);
}

.theme-row{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  flex-wrap: nowrap;
}
.theme-switch-label{
  font-size: var(--text-xs);
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.theme-switch{
  position: relative;
  width: 52px; height: 26px;
  border-radius: var(--radius-pill);
  background: var(--panel-bg);
  border: 1px solid var(--border-soft);
  cursor: pointer;
  padding: 0;
}
.theme-switch .knob{
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--deep);
  transition: transform .3s ease, background .3s ease;
}
body.theme-space .theme-switch .knob{
  transform: translateX(24px);
  background: var(--tide);
}

.sound-controls{
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: var(--space-2);
}
.sound-toggle, .notification-toggle{
  display: inline-flex;
  align-items: center;
  background: transparent;
  border: 1px solid var(--border-soft);
  color: var(--ink-soft);
  border-radius: var(--radius-pill);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  cursor: pointer;
}
.sound-toggle span:last-child,
.notification-toggle span:last-child{ line-height: 1; }
.sound-icon,
.notification-icon{
  position: relative;
  display: inline-block;
  width: 15px;
  height: 15px;
  margin-right: 6px;
  color: var(--tide);
}
.sound-icon::before{
  content: "♪";
  position: absolute;
  left: 1px;
  top: -3px;
  width: 12px;
  height: 16px;
  border: 0;
  font-size: 1.1rem;
  line-height: 1;
}
.sound-icon::after{
  content: none;
}
.notification-icon::before{
  content: "";
  position: absolute;
  left: 3px;
  top: 2px;
  width: 9px;
  height: 10px;
  border: 1.5px solid currentColor;
  border-radius: 7px 7px 3px 3px;
}
.notification-icon::after{
  content: "";
  position: absolute;
  left: 2px;
  bottom: 1px;
  width: 11px;
  height: 3px;
  border-top: 1.5px solid currentColor;
  border-radius: 50%;
}
.sound-toggle[aria-pressed="true"], .notification-toggle[aria-pressed="true"]{
  color: var(--ink);
  border-color: var(--tide);
}
.volume-control{ display: flex !important; align-items: center; }
.volume-control input{
  width: 76px;
  accent-color: var(--tide);
  cursor: pointer;
}

.sr-only{
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   8. FASES (tabs)
   ========================================================================== */
.phase-tabs{
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-7);
  background: var(--panel-bg);
  padding: var(--space-1);
  border-radius: var(--radius-pill);
}
.phase-tab{
  border: none;
  background: transparent;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all .25s ease;
}
.phase-tab.active{
  background: var(--deep);
  color: var(--light-text);
}

/* ==========================================================================
   9. TIMER (anel + centro)
   ========================================================================== */
.ring-wrap{
  position: relative;
  width: 360px;
  height: 360px;
}
.ring-wrap svg{
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}
.ring-track{
  fill: none;
  stroke: var(--ring-track);
  stroke-width: 6;
}
.ring-progress{
  fill: none;
  stroke: var(--tide);
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s linear, stroke .4s ease;
}
.ring-progress.break{ stroke: var(--amber); }

.ring-center{
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.ring-tagline{
  max-width: 75%;
  margin-top: var(--space-3);
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-style: italic;
  line-height: 1.3;
  text-align: center;
}
.time{
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: 500;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.phase-label{
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: var(--space-1);
}

/* ==========================================================================
   10. CONTROLES (iniciar/reiniciar)
   ========================================================================== */
.controls{
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-7);
}
.ctl,
.task-add button,
.default-durations,
.wipe-btn,
.pix-key-row button,
.duration-step,
.session-step,
.task-item .add-session,
.task-item .del{
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease,
              box-shadow .15s ease, transform .15s ease;
}
.ctl:active,
.task-add button:active,
.duration-step:active,
.session-step:active,
.task-item .add-session:active,
.task-item .del:active{
  transform: scale(0.95);
}

/* Principal */
.ctl.btn-primary,
.task-add button{
  background: var(--deep);
  color: var(--light-text);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
}
.task-add button{ padding: var(--space-3) var(--space-5); }
.ctl.btn-primary:hover,
.task-add button:hover{
  box-shadow: 0 4px 14px var(--shadow-soft);
}

/* Secundário */
.ctl.btn-ghost,
.default-durations,
.wipe-btn,
.pix-key-row button{
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
}
.default-durations,
.wipe-btn,
.pix-key-row button{
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
}
.ctl.btn-ghost:hover,
.default-durations:hover,
.wipe-btn:hover,
.pix-key-row button:hover{
  border-color: var(--tide);
}

/* Ícone (redondo pequeno) */
.duration-step,
.session-step,
.task-item .add-session,
.task-item .del{
  width: 28px;
  height: 28px;
  min-width: 28px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-soft);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  font-size: var(--text-sm);
  line-height: 1;
}
.duration-step:hover,
.session-step:hover,
.task-item .add-session:hover,
.task-item .del:hover{
  background: var(--panel-bg);
  border-color: var(--tide);
}

/* ==========================================================================
   11. SETTINGS
   ========================================================================== */
.settings{
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--ink-soft);
}
.settings label{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}
.duration-control{
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.settings input{
  width: 52px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--text-base);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: var(--space-1) 0;
  background: var(--input-bg);
  color: var(--ink);
}
.default-durations{ margin-top: var(--space-3); }
.default-durations{ width: fit-content; align-self: center; }
.auto-toggle{
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: var(--space-2) !important;
  margin-top: var(--space-3);
  color: var(--ink-soft);
  cursor: pointer;
}
.auto-toggle input{
  width: 16px; height: 16px;
  accent-color: var(--tide);
  cursor: pointer;
}

/* ==========================================================================
   12. STATS
   ========================================================================== */
.stats{
  width: 100%;
  display: flex;
  gap: var(--space-3);
}
.stat-card{
  flex: 1;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-4);
  text-align: center;
}
.stat-value{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
}
.stat-label{
  font-size: var(--text-xs);
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: var(--space-1);
}
.stat-detail{
  font-size: var(--text-xs);
  color: var(--ink-soft);
  margin-top: var(--space-2);
}

/* ==========================================================================
   13. SECTION TITLES
   ========================================================================== */
.section-title{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-md);
  margin: var(--space-6) 0 var(--space-3);
  width: 100%;
}

/* ==========================================================================
   14. TASKS
   ========================================================================== */
.tasks{ width: 100%; }

.task-add{
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.task-add input{
  flex: 1;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: var(--input-bg);
  color: var(--ink);
}

.task-list{
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.task-item{
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  font-size: var(--text-sm);
  cursor: grab;
}
.task-item.dragging{ opacity: 0.45; }
.task-item:active{ cursor: grabbing; }
.task-item input[type=checkbox]{
  width: 16px; height: 16px;
  accent-color: var(--tide);
  cursor: pointer;
  flex-shrink: 0;
}
.task-item span{ flex: 1; word-break: break-word; }
.task-item.done span{
  text-decoration: line-through;
  color: var(--ink-soft);
}
.task-item .task-sessions{
  flex: 0 0 auto;
  font-size: var(--text-xs);
  color: var(--ink-soft);
  white-space: nowrap;
}
.task-item .session-step{
  width: 28px;
  height: 28px;
  min-width: 28px;
  margin-left: auto;
}
.task-item .task-sessions + .session-step{ margin-left: 0; }
.task-empty{
  font-size: var(--text-sm);
  color: var(--ink-soft);
  font-style: italic;
  padding: var(--space-2) var(--space-1);
}
.task-summary{
  font-size: var(--text-xs);
  color: var(--ink-soft);
  margin-top: var(--space-2);
  text-align: right;
}

/* ==========================================================================
   15. LOG
   ========================================================================== */
.log{
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  max-height: 160px;
  overflow-y: auto;
  width: 100%;
}
.log-row{
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-3);
  background: var(--card-bg);
  border-radius: var(--radius-md);
  color: var(--ink-soft);
}
.log-empty{
  font-size: var(--text-sm);
  color: var(--ink-soft);
  font-style: italic;
  padding: var(--space-3) var(--space-1);
}

/* ==========================================================================
   16. MUSIC LINKS
   ========================================================================== */
.music-links{
  display: flex;
  gap: var(--space-2);
  width: 100%;
  flex-wrap: wrap;
}
.music-links a{
  flex: 1;
  min-width: 150px;
  text-align: center;
  color: var(--ink);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-3);
  font-size: var(--text-sm);
  text-decoration: none;
  background: var(--card-bg);
}
.music-links a:hover{ border-color: var(--tide); }

/* ==========================================================================
   17. WIPE BUTTON
   ========================================================================== */
.wipe-btn{
  margin-top: var(--space-3);
}
.right-panel > .wipe-btn{
  align-self: flex-start;
  margin: var(--space-3) 0 0;
}

/* ==========================================================================
   18. SUPPORT
   ========================================================================== */
.support{
  background: var(--deep);
  color: var(--light-text);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-5);
  transition: background .6s ease;
}
.support h3{
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0 0 var(--space-1);
  font-size: var(--text-md);
}
.support p{
  font-size: var(--text-sm);
  opacity: 0.8;
  margin: 0 0 var(--space-3);
  line-height: 1.5;
}
.support-links{
  display: flex;
  gap: var(--space-3);
  justify-content: flex-start;
  flex-wrap: wrap;
}
.support-links a, .support-links button{
  font: 500 var(--text-sm) var(--font-body);
  color: var(--light-text);
  text-decoration: none;
  border: 1px solid var(--on-deep-border);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  transition: background .2s ease;
  cursor: pointer;
}
.support-links a{ background: transparent; }
.support-links button{ background: var(--on-deep-fill); }
.support-links a:hover, .support-links button:hover{
  background: var(--on-deep-fill-hover);
}
.right-panel > .support{ margin-top: var(--space-3); }

/* ==========================================================================
   19. FOOTER
   ========================================================================== */
footer{
  position: fixed;
  bottom: 0; left: 0; right: 0;
  max-width: none;
  margin: 0;
  padding: var(--space-3) var(--space-5);
  text-align: center;
  background: color-mix(in srgb, var(--foam) 88%, transparent);
  backdrop-filter: blur(8px);
}
.footer-links{
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--ink-soft);
  margin-top: var(--space-4);
}
.footer-links a{
  color: var(--ink-soft);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-links a:hover{ color: var(--tide); }

.dev-credit{
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ink);
  margin-top: var(--space-3);
}
.dev-credit a{
  color: var(--tide);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.dev-credit a:hover{ color: var(--tide); }

/* ==========================================================================
   20. PIX MODAL
   ========================================================================== */
.pix-modal[hidden]{ display: none; }
.pix-modal{
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
}
.pix-modal-backdrop{
  position: absolute;
  inset: 0;
  background: var(--overlay);
}
.pix-modal-content{
  position: relative;
  width: min(100%, 390px);
  max-height: calc(100vh - 40px);
  overflow: auto;
  background: var(--foam);
  color: var(--ink);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  text-align: center;
  box-shadow: 0 18px 60px var(--shadow-modal);
}
.pix-modal-content h2{
  font-family: var(--font-display);
  margin: 0 var(--space-6) var(--space-2);
  font-size: var(--text-lg);
}
.pix-modal-close{
  position: absolute;
  top: var(--space-2);
  right: var(--space-3);
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font-size: var(--text-xl);
  line-height: 1;
  cursor: pointer;
}
.pix-qr{
  width: min(100%, 280px);
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  margin: var(--space-3) auto var(--space-4);
  display: block;
  background: #fff;
  padding: var(--space-1);
}
.pix-key-label{
  font-size: var(--text-xs);
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 var(--space-2);
}
.pix-key-row{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.pix-key-row code{
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink);
  background: var(--panel-bg);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  word-break: break-all;
}
/* ==========================================================================
   21. RESPONSIVE
   ========================================================================== */

/* Desktop grande — grid de duas colunas */
@media (min-width: 980px){
  body{
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
    padding: 0 var(--space-5) var(--space-7);
  }

  header{ max-width: none; }

  .app-shell{
    display: grid;
    grid-template-columns: minmax(420px, 520px) minmax(420px, 1fr);
    gap: var(--space-7);
    align-items: center;
    min-height: calc(100dvh - 72px);
  }

  .left-column{
    min-width: 0;
    align-items: stretch;
  }
  .left-column header{
    text-align: left;
    padding-top: var(--space-3);
  }
  .left-column .theme-row{ justify-content: flex-start; }

  .left-panel, .right-panel{ width: 100%; }
  .left-panel{ align-items: center; }
  .right-panel{ align-items: stretch; padding-top: var(--space-3); }

  .stats{ margin-top: 0; }
  .section-title:first-of-type{ margin-top: 0; }
  .log{ max-height: none; }
  .right-panel > .support{
    width: 100%;
    max-width: none;
    margin-left: 0;
  }

  /* Compacta a coluna esquerda para caber em uma tela */
  header{ padding: var(--space-1) 0 var(--space-1); }
  .theme-row{ margin-top: var(--space-2); }
  .tagline{ margin-top: var(--space-1); }
  main{ margin-top: 0; }
  .phase-tabs{ margin-bottom: var(--space-1); }
  .ring-wrap{
    width: min(360px, 40vh);
    height: min(360px, 40vh);
  }
  .time{ font-size: var(--text-3xl); }
  .controls{ margin-top: var(--space-5); }
  .settings{ margin-top: var(--space-5); }
  .default-durations{ margin-top: var(--space-1); }
  .auto-toggle{ margin-top: var(--space-1); }
  .support{ padding: var(--space-3) var(--space-4); }
  .support h3{ margin-bottom: var(--space-1); }
  .support p{ margin-bottom: var(--space-2); }
  .footer-links{ margin-top: 0; }
  .dev-credit{ margin-top: var(--space-1); font-size: var(--text-xs); }
}

/* Abaixo de 980px — footer deixa de ser fixo */
@media (max-width: 979px){
  footer{ position: relative; margin-top: var(--space-7); }
  .theme-row{ flex-wrap: wrap; }
  .sound-controls{
    flex-basis: 100%;
    justify-content: center;
    margin-left: 0;
    margin-top: var(--space-2);
  }

  .left-panel{
    align-items: center;
  }
}

/* Páginas internas mantêm a rolagem mesmo no desktop. */
.internal-page{
  min-height: 100vh;
  height: auto;
  overflow-y: auto;
  padding-bottom: var(--space-7);
}
.internal-page main{
  margin-top: var(--space-6);
  margin-bottom: var(--space-7);
  justify-content: flex-start;
}
.internal-page header{
  padding-top: var(--space-6);
  text-align: center;
}
.internal-page .wordmark{
  justify-content: center;
}
.internal-page footer{
  position: relative;
  margin-top: var(--space-7);
}

/* Mobile pequeno */
@media (max-width: 420px){
  body{
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
  .theme-row{ gap: var(--space-1); }
  .sound-controls{ margin-left: var(--space-1); }
  .volume-control input{ width: 58px; }
  .ring-wrap{ width: 250px; height: 250px; }
  .time{ font-size: var(--text-3xl); }
  .stats{ flex-direction: column; }
  .settings{ gap: var(--space-2); }
}

/* ==========================================================================
   22. ACESSIBILIDADE
   ========================================================================== */
:focus-visible{
  outline: 2px solid var(--tide);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce){
  *{
    transition: none !important;
    animation: none !important;
  }
}