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

body {
  background: linear-gradient(135deg, #006B7D 0%, #008B9E 50%, #00A5B8 100%);
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  flex-direction: column;
}

/* --- HEADER STYLES --- */
.PT_19_JAN_ES_HEADER {
  background: linear-gradient(135deg, #0A4D5C 0%, #005F73 100%);
  padding: 40px 20px;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  border-bottom: 3px solid #FF8C00;
}

.PT_19_JAN_ES_HEADER_CONTENT {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.PT_19_JAN_ES_LOGO {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.PT_19_JAN_ES_LOGO_PRIMA {
  color: #FF8C00;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.PT_19_JAN_ES_LOGO_THINK {
  color: #1a1a1a;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.PT_19_JAN_ES_SUBTITLE {
  font-size: 24px;
  color: #E0F2F7;
  font-weight: 400;
  letter-spacing: 0.5px;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

/* --- MAIN LAYOUT & SCREEN --- */
.PT_19_JAN_ES_MAIN_CONTAINER {
  flex: 1;
  display: flex;
  flex-direction: column; /* Updated for interactivity */
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
  gap: 30px;
}

/* The Input Screen */
.PT_DISPLAY {
  width: 100%;
  max-width: 850px;
  height: 100px;
  background: #0f1c23;
  border: 2px solid rgba(255, 140, 0, 0.3);
  border-radius: 12px;
  color: #E0F2F7;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 18px;
  padding: 20px;
  resize: none;
  outline: none;
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.5);
  transition: border-color 0.3s ease;
}

.PT_DISPLAY:focus {
  border-color: #FF8C00;
}

/* --- KEYBOARD BASE --- */
.PT_19_JAN_ES_KEYBOARD {
  background: linear-gradient(145deg, #1a2930, #0f1c23);
  padding: 35px;
  border-radius: 24px;
  box-shadow: 
    0 25px 70px rgba(0, 0, 0, 0.5),
    inset 0 2px 0 rgba(255, 140, 0, 0.2),
    inset 0 -2px 10px rgba(0, 0, 0, 0.3);
  border: 2px solid rgba(255, 140, 0, 0.3);
}

.PT_19_JAN_ES_ROW {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
  justify-content: center;
}

.PT_19_JAN_ES_ROW:last-child {
  margin-bottom: 0;
}

/* --- KEY STYLING --- */
.PT_19_JAN_ES_KEY {
  width: 50px;
  height: 50px;
  background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  position: relative;
  
  box-shadow: 
    0 5px 0 #adb5bd,
    0 6px 12px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(0, 0, 0, 0.05);
  
  transition: all 0.08s ease;
  color: #2d3436;
  font-weight: 600;
  font-size: 13px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.PT_19_JAN_ES_KEY span {
  display: block;
  line-height: 1.2;
  font-size: 12px;
  letter-spacing: 0.3px;
}

/* Hover State */
.PT_19_JAN_ES_KEY:hover {
  background: linear-gradient(180deg, #ffffff 0%, #f1f3f5 100%);
  box-shadow: 
    0 5px 0 #adb5bd,
    0 6px 12px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 1),
    inset 0 0 15px rgba(255, 140, 0, 0.1);
}

/* Active / Pressed State (Used by JS) */
.PT_19_JAN_ES_KEY:active,
.PT_19_JAN_ES_KEY.active {
  transform: translateY(4px);
  box-shadow: 
    0 1px 0 #adb5bd,
    0 2px 5px rgba(0, 0, 0, 0.3),
    inset 0 2px 4px rgba(0, 0, 0, 0.25);
  background: linear-gradient(180deg, #e9ecef 0%, #dee2e6 100%);
  border-color: #FF8C00;
}

.PT_19_JAN_ES_KEY.caps-active {
  background: #FF8C00;
  color: white;
  box-shadow: 0 0 10px rgba(255, 140, 0, 0.5);
}

/* --- SPECIAL KEYS SIZING --- */
.PT_19_JAN_ES_BACKSPACE { width: 100px; font-size: 11px; }
.PT_19_JAN_ES_TAB { width: 75px; font-size: 11px; }
.PT_19_JAN_ES_BACKSLASH { width: 75px; }
.PT_19_JAN_ES_CAPSLOCK { width: 85px; font-size: 10px; }

.PT_19_JAN_ES_ENTER {
  width: 110px;
  font-size: 11px;
  background: linear-gradient(180deg, #FFE5CC 0%, #FFD4A8 100%);
  color: #8B4500;
}
.PT_19_JAN_ES_ENTER:hover { background: linear-gradient(180deg, #FFF0E0 0%, #FFE5CC 100%); }
.PT_19_JAN_ES_ENTER:active,
.PT_19_JAN_ES_ENTER.active { background: linear-gradient(180deg, #FFD4A8 0%, #FFC68A 100%); }

.PT_19_JAN_ES_SHIFT_LEFT, .PT_19_JAN_ES_SHIFT_RIGHT { width: 125px; font-size: 11px; }
.PT_19_JAN_ES_SPACEBAR { width: 320px; }

.PT_19_JAN_ES_CTRL, .PT_19_JAN_ES_FN, .PT_19_JAN_ES_WIN, .PT_19_JAN_ES_ALT, .PT_19_JAN_ES_MENU {
  width: 60px;
  font-size: 11px;
}

/* Darker styling for functional keys */
.PT_19_JAN_ES_CTRL, .PT_19_JAN_ES_FN, .PT_19_JAN_ES_WIN, .PT_19_JAN_ES_ALT, 
.PT_19_JAN_ES_MENU, .PT_19_JAN_ES_SHIFT_LEFT, .PT_19_JAN_ES_SHIFT_RIGHT, 
.PT_19_JAN_ES_CAPSLOCK, .PT_19_JAN_ES_TAB, .PT_19_JAN_ES_BACKSPACE {
  background: linear-gradient(180deg, #dfe4ea 0%, #ced6e0 100%);
  color: #57606f;
  font-size: 10px;
}

.PT_19_JAN_ES_CTRL:active, .PT_19_JAN_ES_FN:active, .PT_19_JAN_ES_WIN:active, 
.PT_19_JAN_ES_ALT:active, .PT_19_JAN_ES_MENU:active, .PT_19_JAN_ES_SHIFT_LEFT:active, 
.PT_19_JAN_ES_SHIFT_RIGHT:active, .PT_19_JAN_ES_CAPSLOCK:active, .PT_19_JAN_ES_TAB:active, 
.PT_19_JAN_ES_BACKSPACE:active {
  background: linear-gradient(180deg, #ced6e0 0%, #b2bec3 100%);
}

/* --- FOOTER --- */
.PT_19_JAN_ES_FOOTER {
  background: linear-gradient(135deg, #0A4D5C 0%, #005F73 100%);
  padding: 30px 20px;
  box-shadow: 
    0 -8px 32px rgba(0, 0, 0, 0.3),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1);
  border-top: 3px solid #FF8C00;
}

.PT_19_JAN_ES_FOOTER_CONTENT {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.PT_19_JAN_ES_FOOTER_TEXT {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 16px;
  color: #E0F2F7;
}

.PT_19_JAN_ES_FOOTER_BRAND { font-size: 20px; font-weight: 700; }
.PT_19_JAN_ES_FOOTER_SEPARATOR { color: #FF8C00; font-size: 20px; }
.PT_19_JAN_ES_FOOTER_COPYRIGHT { color: #B0D4DB; font-size: 14px; }

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .PT_19_JAN_ES_KEYBOARD { padding: 25px; transform: scale(0.85); }
  .PT_19_JAN_ES_LOGO { font-size: 36px; }
  .PT_19_JAN_ES_SUBTITLE { font-size: 20px; }
}

@media (max-width: 700px) {
  .PT_19_JAN_ES_KEYBOARD { transform: scale(0.65); }
  .PT_19_JAN_ES_HEADER { padding: 30px 15px; }
  .PT_19_JAN_ES_LOGO { font-size: 32px; }
  .PT_19_JAN_ES_SUBTITLE { font-size: 18px; }
  .PT_19_JAN_ES_FOOTER_CONTENT { flex-direction: column; text-align: center; }
  .PT_19_JAN_ES_FOOTER_TEXT { flex-direction: column; gap: 8px; }
}

@media (max-width: 500px) {
  .PT_19_JAN_ES_KEYBOARD { transform: scale(0.5); }
}