/* calculator.css - namespaced for calc- IDs and keeps your original theme */

/* --- Root wrapper --- */
.calc-root {
  width: 100%;
  height: 100%;
  display:flex;
  justify-content:center;
  align-items:flex-start;
  box-sizing: border-box;
  padding: 0px;
}

/* center inner calculator with max width */
.calculator-inner {
  background: rgba(40, 40, 40, 0.95);
  padding: 10px;
  border-radius: 20px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.7);
  width: 100%;
  max-width: 420px;
  backdrop-filter: blur(8px);
}

/* --- Display Area (namespaced IDs) --- */
#calc-display-container {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

#calc-history, #calc-display {
  width: 100%;
  box-sizing: border-box;
  border: none;
  border-radius: 12px;
  padding: 8px 12px;
  margin: 0;
  font-weight: bold;
  color: #0f0;
  background: rgba(0,0,0,0.8);
  text-align: right;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.7);
  font-size: 18px;
  overflow-x: auto;
}

#calc-history {
  font-size: 13px;
  color: #aaa;
  background: rgba(20,20,20,0.85);
  text-align: left;
}

/* --- Button Grid --- */
.calculator-inner .row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  margin-bottom: 10px;
}

/* Buttons */
.calculator-inner button {
  height: 45px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: bold;
  background: linear-gradient(to bottom, #5a5a5a, #444);
  color: #fff;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 3px 5px rgba(0,0,0,0.3);
}

.calculator-inner button:hover {
  background: linear-gradient(to bottom, #777, #555);
  transform: translateY(-1px);
  box-shadow: 0 5px 10px rgba(0,0,0,0.3);
}

/* equals */
#calc-equals.equals {
  background: linear-gradient(to bottom, #0a84ff, #006edc);
  color: #fff;
  box-shadow: 0 4px 8px rgba(0,110,220,0.5);
}
#calc-equals.equals:hover {
  background: linear-gradient(to bottom, #3399ff, #005bb5);
  transform: translateY(-1px);
}

/* Clear/Delete/Memory */
#calc-clear, #calc-del, #calc-mc, #calc-mr {
  background: linear-gradient(to bottom, #e74c3c, #c0392b);
}
#calc-clear:hover, #calc-del:hover, #calc-mc:hover, #calc-mr:hover {
  background: linear-gradient(to bottom, #ff5c5c, #d62c1a);
  transform: translateY(-1px);
}

/* special functions */
#calc-history-up, #calc-history-down, #calc-deg-rad, #calc-rand, #calc-abs {
  background: linear-gradient(to bottom, #7f8c8d, #606060);
}
#calc-history-up:hover, #calc-history-down:hover, #calc-deg-rad:hover, #calc-rand:hover, #calc-abs:hover {
  background: linear-gradient(to bottom, #95a5a6, #707070);
}

/* active */
.calculator-inner button.active {
  background: linear-gradient(to bottom, #0a84ff, #3399ff);
  color: #fff;
  box-shadow: 0 0 10px rgba(0,132,255,0.7);
}

/* numeric buttons styling */
.calculator-inner button[data-value="0"], .calculator-inner button[data-value="1"],
.calculator-inner button[data-value="2"], .calculator-inner button[data-value="3"],
.calculator-inner button[data-value="4"], .calculator-inner button[data-value="5"],
.calculator-inner button[data-value="6"], .calculator-inner button[data-value="7"],
.calculator-inner button[data-value="8"], .calculator-inner button[data-value="9"],
.calculator-inner button[data-value="."] {
  background: linear-gradient(to bottom, #6c5ce7, #341f97);
  color: #fff;
  font-weight: bold;
  box-shadow: 0 3px 6px rgba(52, 31, 151, 0.4);
}
.calculator-inner button[data-value="0"]:hover,
.calculator-inner button[data-value="1"]:hover,
.calculator-inner button[data-value="2"]:hover,
.calculator-inner button[data-value="3"]:hover,
.calculator-inner button[data-value="4"]:hover,
.calculator-inner button[data-value="5"]:hover,
.calculator-inner button[data-value="6"]:hover,
.calculator-inner button[data-value="7"]:hover,
.calculator-inner button[data-value="8"]:hover,
.calculator-inner button[data-value="9"]:hover,
.calculator-inner button[data-value="."]:hover {
  background: linear-gradient(to bottom, #817afc, #4b32c3);
  transform: translateY(-1px);
  box-shadow: 0 5px 10px rgba(52, 31, 151, 0.5);
}

/* degree/rad indicator styles */
#calc-deg-rad.DEG { background-color: #ff9500; color: #fff; }
#calc-deg-rad.RAD { background-color: #0a84ff; color: #fff; }

/* operator buttons */
#calc-square, #calc-pow, #calc-tenpow, #calc-inv, #calc-percent, #calc-fact {
  background: linear-gradient(to bottom, #34495e, #2c3e50);
}
#calc-square:hover, #calc-pow:hover, #calc-tenpow:hover, #calc-inv:hover, #calc-percent:hover, #calc-fact:hover {
  background: linear-gradient(to bottom, #4b6584, #34495e);
  transform: translateY(-1px);
}

/* placeholder history */
#calc-history.placeholder { color: #888; font-style: italic; }
#calc-history:not(.placeholder) { color: #aaa; font-style: normal; }