app/frontend/styles.css

html, body, .stApp {
  background-color: var(--bg) !important;
}

[data-testid="stDecoration"] {
  display: none !important;
}

[data-testid="stHeader"] {
  background: transparent !important;
  border-bottom: none !important;
  box-shadow: none !important;
}

header {
  visibility: hidden;
  height: 0 !important;
}

.block-container {
  padding-top: 5.5rem !important;
  padding-bottom: 16rem !important;
  max-width: 100% !important;
}

div[data-testid="stVerticalBlockBorderWrapper"] {
  border: none !important;
  background: transparent !important;
}

div[data-testid="stVerticalBlock"]:has(> div[data-testid="stVerticalBlockBorderWrapper"]) {
  background: transparent !important;
}

.app-footer-disclaimer {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  width: min(1100px, calc(100vw - 4rem));
  text-align: center;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.84rem;
  line-height: 1.4;
  z-index: 41;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

div[data-testid="stChatInput"] {
  backdrop-filter: blur(10px);
}

/* Input Field Styling */

div[data-testid="stTextInput"] {
  margin-bottom: 0px !important;
}

div[data-testid="stTextInput"] div[data-baseweb="input"] {
  background-color: var(--input_bg) !important;
  border: 1px solid var(--chip_border) !important;
  border-radius: 99px !important;
  min-height: 72px !important;
  height: 72px !important;
  padding: 0 25px !important;
  align-items: center !important;
}

/* File Uploader Styling */

div[data-testid="stFileUploader"] [data-testid="stFileUploaderDropzoneInstructions"],
div[data-testid="stFileUploader"] small {
  display: none !important;
}

div[data-testid="stFileUploader"] [data-testid="stFileUploaderDropzone"] {
  min-height: 42px !important;
  padding: 6px !important;
  border: 1px dashed var(--chip_border) !important;
  border-radius: 10px !important;
  background: transparent !important;
}

div[data-testid="stFileUploader"] section {
  padding: 0 !important;
}

/* Quita estilos internos adicionales del input */

div[data-testid="stTextInput"] div[data-baseweb="input"] > div {
  background: transparent !important;
  box-shadow: none !important;
}

div[data-testid="stTextInput"] div[data-baseweb="input"]::before,
div[data-testid="stTextInput"] div[data-baseweb="input"]::after {
  display: none !important;
}

div[data-testid="stTextInput"] div[data-baseweb="input"] input {
  background-color: transparent !important;
  border: none !important;
  color: var(--text_primary) !important;
  -webkit-text-fill-color: var(--text_primary) !important;
  caret-color: var(--text_primary) !important;
  font-size: 1.2rem !important;
  min-height: 100% !important;
  height: 100% !important;
  padding: 0 !important;
}

div[data-testid="stTextInput"] div[data-baseweb="input"]:focus-within {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 1px var(--accent) !important;
}

div[data-testid="stTextInput"] input::placeholder {
  color: var(--muted) !important;
  -webkit-text-fill-color: var(--muted) !important;
  opacity: 1 !important;
}

/* Buttons & Popovers */

div[data-testid="stPopover"] > button {
  border-radius: 50% !important;
  width: 52px !important;
  height: 52px !important;
  min-height: 52px !important;
  padding: 0 !important;
  background-color: var(--chip_bg) !important;
  border: 1px solid var(--chip_border) !important;
  color: var(--text_primary) !important;
  font-size: 1.35rem !important;
  margin-top: 10px !important;
}

div[data-testid="stPopover"] > button:hover {
  background-color: var(--chip_hover) !important;
  border-color: var(--muted) !important;
}

.attach-option-label {
  color: var(--text_primary);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

div[data-testid="stButton"] > button[kind="primary"] {
  border-radius: 50% !important;
  width: 65px !important;
  height: 65px !important;
  padding: 0 !important;
  background-color: var(--accent) !important;
  border: none !important;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3) !important;
  font-size: 1.6rem !important;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0px !important;
}

/* Suggestion Chips */

.suggestion-btn button {
  background-color: var(--chip_bg) !important;
  border: 1px solid var(--chip_border) !important;
  color: var(--muted) !important;
  border-radius: 20px !important;
  font-size: 0.95rem !important;
  padding: 12px 20px !important;
  height: auto !important;
  margin: 4px !important;
  width: 100% !important;
  transition: all 0.2s ease;
}

.suggestion-btn button:hover {
  background-color: var(--chip_hover) !important;
  color: var(--hover_text) !important;
  border-color: var(--muted) !important;
}

/* Quitar estilos nativos del chat de Streamlit */

.stChatMessage,
div[data-testid="stChatMessage"] {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0.15rem 0 !important;
  margin: 0 !important;
}

.stChatMessageContent,
div[data-testid="stChatMessage"] [data-testid="stChatMessageContent"] {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

.download-inline-btn {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--chip_border);
  border-radius: 10px;
  background: var(--input_bg);
  color: var(--text_primary);
  text-decoration: none;
  font-weight: 600;
}

.download-inline-btn:hover {
  background: var(--chip_hover);
  color: var(--hover_text);
}

/* Chat Bubbles & Layout */

.chat-row {
  display: flex;
  align-items: flex-end;
  margin-bottom: 24px;
  width: 100%;
}

.chat-row.user {
  flex-direction: row-reverse;
}

.chat-row.assistant {
  flex-direction: row;
}

.chat-avatar {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--chip_bg);
  border: 1px solid var(--chip_border);
  flex-shrink: 0;
  font-size: 1.1rem;
  margin: 0 12px;
}

.chat-bubble {
  max-width: 75%;
  padding: 16px 20px;
  border-radius: 18px;
  font-size: 1.05rem;
  line-height: 1.5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.chat-bubble.user {
  background-color: var(--input_bg);
  color: var(--text_primary);
  border: 1px solid var(--chip_border);
  border-bottom-right-radius: 4px;
}

.chat-bubble.assistant {
  background-color: var(--panel);
  color: var(--text_primary);
  border: 1px solid var(--chip_border);
  border-bottom-left-radius: 4px;
}

/* Headers and Welcome Text */

.bottom-welcome {
  text-align: center;
  color: var(--muted);
  margin-top: 3rem;
  font-size: 1rem;
  line-height: 1.6;
}

h1.main-title {
  text-align: center;
  font-family: 'Helvetica Neue', sans-serif;
  font-weight: 700;
  color: var(--text_primary);
  margin-bottom: 0.2rem;
  font-size: 2.5rem;
}

p.subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 3.5rem;
}

/* Título sugerido da apresentação (área de PPTX) */

.ppt-title-display {
  background-color: var(--input_bg);
  border-radius: 999px;
  border: 1px solid var(--chip_border);
  padding: 14px 20px;
  color: var(--text_primary);
  font-size: 1rem;
}

/* Spinner global ("Analisando...") como overlay central com leve blur */

div[data-testid="stSpinner"] {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(2px);
  z-index: 50;
}

div[data-testid="stSpinner"] > div {
  background-color: var(--panel);
  border-radius: 999px;
  padding: 8px 18px;
  color: var(--muted);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  font-size: 0.9rem;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: auto !important;
  max-width: min(420px, 90vw);
}

div[data-testid="stSpinner"] svg {
  margin-right: 6px;
}

/* Cabeçalho compacto quando há conversa em andamento */

.header-compact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-top: 0.75rem;
}

.st-key-header_home button {
  position: fixed !important;
  top: 1.25rem;
  left: 2.75rem;
  z-index: 42 !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  color: var(--text_primary) !important;
  padding: 0 !important;
  min-height: auto !important;
  font-family: 'Helvetica Neue', sans-serif;
  font-weight: 600;
  font-size: 1.1rem !important;
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
}

.st-key-header_home button:hover {
  background: transparent !important;
  color: var(--text_primary) !important;
}

.st-key-header_home button:focus {
  box-shadow: none !important;
}

.header-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background-color: var(--chip_bg);
  border: 1px solid var(--chip_border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.header-title {
  font-family: 'Helvetica Neue', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text_primary);
}