/**
 * styles.css
 * Estética ASCII premium: bege/off-white, glass sutil, minimalista
 */

/* =====================
   TOKENS DE DESIGN
   ===================== */
:root {
  /* Paleta de cores */
  --color-background: #f4efe6;
  --color-ink: #1f1f1f;
  --color-ink-soft: rgba(31, 31, 31, 0.72);
  --color-border: rgba(31, 31, 31, 0.18);
  --color-glass: rgba(255, 255, 255, 0.35);
  --color-glass-hover: rgba(255, 255, 255, 0.45);
  --color-shadow: rgba(0, 0, 0, 0.12);
  --color-overlay: rgba(31, 31, 31, 0.15);

  /* Tipografia */
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  /* Espaçamento */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* Transições */
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* =====================
   RESET & BASE
   ===================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-mono);
  background: var(--color-background);
  color: var(--color-ink);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* =====================
   FLOATING MESSAGES (BACKGROUND)
   ===================== */
.floating-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-poetry, 2);
  pointer-events: none;
  overflow: hidden;
}

/* Movement: translate3d from below viewport to above viewport (GPU-composited) */
@keyframes float-move {
  from {
    transform: translate3d(0, var(--y-start), 0);
  }
  to {
    transform: translate3d(0, var(--y-end), 0);
  }
}

/* Opacity: fade in (0-10%), visible (10-85%), fade out (85-100%) */
@keyframes float-fade {
  0% {
    opacity: 0;
  }
  10% {
    opacity: 0.85;
  }
  85% {
    opacity: 0.85;
  }
  100% {
    opacity: 0;
  }
}

/* ---- Card: outer wrapper (handles translateY animation) ---- */
.floating-card {
  position: absolute;
  top: 0;
  pointer-events: auto;
  cursor: default;
  will-change: transform;
  animation: float-move var(--anim-dur) linear forwards;
  animation-play-state: running;
  z-index: 1;
}

/* ---- Card body: transparent in normal state (text-only look) ---- */
.floating-card__body {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 16px;
  padding: 14px 18px;
  box-shadow: none;
  font-family: var(--font-mono);
  will-change: opacity;
  animation: float-fade var(--anim-dur) linear forwards;
  animation-play-state: running;
  transition:
    transform 220ms ease,
    background 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
  color: rgb(10, 10, 10) !important;
}

/* ---- Text: crisp, legible via subtle text-shadow ---- */
.floating-card__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: rgb(10, 10, 10);
  font-style: italic;
  font-weight: 500;
  word-wrap: break-word;
  overflow-wrap: break-word;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}

.floating-card__author {
  display: block;
  margin-top: 6px;
  font-size: 0.75rem;
  line-height: 1.4;
  color: rgb(40, 40, 40);
  font-weight: 400;
  font-style: normal;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

/* ---- Focused state: glass via ::before, text stays filter-free ---- */
.floating-card--focused {
  animation-play-state: paused;
  z-index: 10;
}

.floating-card--focused .floating-card__body {
  animation-play-state: paused;
  opacity: 1 !important;
  transform: scale(1.04);
  position: relative;
  border-color: rgba(0, 0, 0, 0.08);
}

.floating-card--focused .floating-card__body::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  z-index: -1;
}

.floating-card--focused .floating-card__text {
  text-shadow: none;
  color: rgba(0, 0, 0, 0.95);
}

.floating-card--focused .floating-card__author {
  text-shadow: none;
  color: rgba(0, 0, 0, 0.72);
}

/* Fallback for browsers without backdrop-filter */
@supports not (backdrop-filter: blur(8px)) {
  .floating-card--focused .floating-card__body::before {
    background: rgba(244, 239, 230, 0.88);
  }
}

/* ---- Emergency exit: freeze position + fade out ---- */
.floating-card--exit {
  animation-play-state: paused !important;
  opacity: 0 !important;
  transition: opacity 250ms ease !important;
  pointer-events: none !important;
  z-index: 0;
}

/* Mobile: slightly smaller text */
@media (max-width: 767px) {
  .floating-card__text {
    font-size: 0.82rem;
    line-height: 1.5;
  }

  .floating-card__body {
    padding: 12px 14px;
    border-radius: 14px;
  }

  .floating-card__author {
    font-size: 0.7rem;
  }
}

/* Reduced motion: no scale/blur on focus */
@media (prefers-reduced-motion: reduce) {
  .floating-card--focused .floating-card__body {
    transform: none;
  }

  .floating-card--focused .floating-card__body::before {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  .floating-card__body {
    color: rgb(10, 10, 10) !important;
  }

  .floating-card__text {
    color: rgb(10, 10, 10);
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.3);
  }

  .floating-card__author {
    color: rgb(40, 40, 40);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.2);
  }

  .floating-card--focused .floating-card__body {
    border-color: rgba(0, 0, 0, 0.08);
    color: rgb(10, 10, 10) !important;
  }

  .floating-card--focused .floating-card__body::before {
    background: rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  }

  .floating-card--focused .floating-card__text,
  .floating-card--focused .floating-card__author {
    text-shadow: none;
    color: rgb(10, 10, 10);
  }
}

/* =====================
   CTA OVERLAY
   ===================== */
.cta-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  padding: var(--space-lg);
}

.cta-content {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-glass);
  backdrop-filter: blur(10px) saturate(160%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px var(--color-shadow);
  pointer-events: auto;
  max-width: 480px;
  width: 100%;
}

/* Fallback para navegadores sem backdrop-filter */
@supports not (backdrop-filter: blur(10px)) {
  .cta-content {
    background: rgba(244, 239, 230, 0.92);
  }
}

.cta-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-ink);
  line-height: 1.3;
}

.cta-subtitle {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-xl);
  line-height: 1.5;
}

.cta-button {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-glass);
  color: var(--color-ink);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-smooth);
  box-shadow:
    0 1px 3px var(--color-shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.2), transparent);
  pointer-events: none;
}

.cta-button:hover,
.cta-button:focus {
  background: var(--color-glass-hover);
  transform: translateY(-1px);
  box-shadow:
    0 4px 12px var(--color-shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.cta-button:active {
  transform: translateY(0);
}

.cta-button:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .cta-title {
    font-size: 2rem;
  }

  .cta-subtitle {
    font-size: 1.05rem;
  }

  .cta-button {
    font-size: 1.05rem;
  }
}

/* =====================
   MODAL
   ===================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 100;
  background: var(--color-overlay);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-smooth),
    visibility var(--transition-smooth);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--color-glass);
  backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px var(--color-shadow);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-bounce);
}

.modal-overlay.is-open .modal-container {
  transform: scale(1) translateY(0);
}

@supports not (backdrop-filter: blur(16px)) {
  .modal-container {
    background: rgba(244, 239, 230, 0.96);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-ink);
}

.modal-close {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  background: none;
  border: none;
  color: var(--color-ink-soft);
  cursor: pointer;
  padding: var(--space-xs);
  line-height: 1;
  transition: color var(--transition-smooth);
  border-radius: var(--radius-sm);
}

.modal-close:hover,
.modal-close:focus {
  color: var(--color-ink);
  background: rgba(31, 31, 31, 0.06);
}

.modal-close:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: 2px;
}

/* =====================
   FORMULÁRIO
   ===================== */
.modal-form {
  padding: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: var(--space-xs);
}

.form-required {
  color: var(--color-ink-soft);
}

.form-input,
.form-textarea {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  transition: all var(--transition-smooth);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-ink);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 0 3px rgba(31, 31, 31, 0.08);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.6;
}

.form-counter {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  text-align: right;
  margin-top: var(--space-xs);
}

.submit-button {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  width: 100%;
  padding: var(--space-md);
  background: var(--color-ink);
  color: var(--color-background);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-smooth);
  box-shadow: 0 2px 8px var(--color-shadow);
}

.submit-button:hover,
.submit-button:focus {
  background: rgba(31, 31, 31, 0.85);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--color-shadow);
}

.submit-button:active {
  transform: translateY(0);
}

.submit-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.submit-button:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: 2px;
}

.form-error {
  margin-top: var(--space-md);
  padding: var(--space-sm);
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: var(--radius-sm);
  color: #991b1b;
  font-size: 0.85rem;
  display: none;
}

.form-error.is-visible {
  display: block;
}

/* =====================
   TOAST (FEEDBACK)
   ===================== */
.toast {
  position: fixed;
  top: var(--space-lg);
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  z-index: 200;
  background: var(--color-ink);
  color: var(--color-background);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  box-shadow: 0 8px 24px var(--color-shadow);
  opacity: 0;
  transition: all var(--transition-bounce);
  pointer-events: none;
}

.toast.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* =====================
   RESPONSIVIDADE
   ===================== */
@media (max-width: 767px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-xxl: 2rem;
  }

  .cta-content {
    padding: var(--space-lg);
  }

  .modal-header,
  .modal-form {
    padding: var(--space-md);
  }
}

/* =====================
   ACESSIBILIDADE
   ===================== */
@media (prefers-reduced-motion: reduce) {
  *:not(.floating-layer):not(.floating-layer *),
  *:not(.floating-layer):not(.floating-layer *)::before,
  *:not(.floating-layer):not(.floating-layer *)::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

/* =====================
   SCROLL SUAVE
   ===================== */
html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}