.stamp {
  position: absolute;
  pointer-events: none;
  user-select: none;
  mix-blend-mode: multiply;
  transform: rotate(var(--rotation, -15deg));
}

.stampInner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border: var(--border-width, 3px) solid var(--stamp-color, #00aa00);
  border-radius: 4px;
  opacity: var(--opacity, 0.7);
}

/* SIZES */
.small {
  width: 80px;
  height: 50px;
  font-size: 0.75rem;
}

.medium {
  width: 120px;
  height: 70px;
  font-size: 0.875rem;
}

.large {
  width: 160px;
  height: 90px;
  font-size: 1rem;
}

/* STAMP TEXT */
.stampText {
  font-family: 'Courier New', 'Courier', monospace;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stamp-color, #00aa00);
  text-align: center;
  line-height: 1.2;
}

/* STAMP BORDER */
.stampBorder {
  position: absolute;
  inset: 4px;
  border: 1px solid var(--stamp-color, #00aa00);
  border-radius: 2px;
  opacity: 0.7;
}

/* PATTERN (for confidential) */
.stampPattern {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  overflow: hidden;
  opacity: 0.2;
}

.patternLine {
  width: 80%;
  height: 1px;
  background: var(--stamp-color, #aa00aa);
}

/* TYPES */

/* Approved */
.type-approved {
  --stamp-color: #00aa00;
}

.type-approved .stampInner {
  background: rgba(0, 170, 0, 0.05);
}

/* Rejected */
.type-rejected {
  --stamp-color: #aa0000;
}

.type-rejected .stampInner {
  background: rgba(170, 0, 0, 0.05);
}

.type-rejected .stampText::before,
.type-rejected .stampText::after {
  content: '✕';
  position: absolute;
  font-size: 1.5em;
  opacity: 0.3;
}

.type-rejected .stampText::before {
  top: -10px;
  left: -10px;
  transform: rotate(-45deg);
}

.type-rejected .stampText::after {
  bottom: -10px;
  right: -10px;
  transform: rotate(45deg);
}

/* Confidential */
.type-confidential {
  --stamp-color: #aa00aa;
}

.type-confidential .stampInner {
  background: rgba(170, 0, 170, 0.05);
}

/* Draft */
.type-draft {
  --stamp-color: #666666;
}

.type-draft .stampInner {
  background: rgba(102, 102, 102, 0.05);
  border-style: dashed;
}

/* Custom */
.type-custom {
  --stamp-color: #000000;
}

/* ANIMATED */
.stamp.animated {
  animation: stamp-appear 0.5s ease forwards;
}

@keyframes stamp-appear {
  0% {
    transform: rotate(var(--rotation, -15deg)) scale(1.2);
    opacity: 0;
  }
  70% {
    transform: rotate(var(--rotation, -15deg)) scale(1.1);
    opacity: 1;
  }
  100% {
    transform: rotate(var(--rotation, -15deg)) scale(1);
    opacity: var(--opacity, 0.7);
  }
}

/* VARIANTS */

/* Stamp with seal */
.stamp.seal .stampInner::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--stamp-color, #00aa00);
  opacity: 0.5;
}

/* Double border */
.stamp.double .stampBorder::after {
  content: '';
  position: absolute;
  inset: 4px;
  border: 1px solid var(--stamp-color, #00aa00);
  border-radius: 2px;
  opacity: 0.4;
}

/* Corner stamp */
.stamp.corner {
  transform: rotate(var(--rotation, -15deg)) translate(20px, 20px);
}

/* Bleeding ink effect */
.stamp.bleed::before {
  content: '';
  position: absolute;
  inset: -10px;
  background: radial-gradient(ellipse at center, var(--stamp-color, #00aa00) 0%, transparent 70%);
  opacity: 0.2;
  filter: blur(5px);
  border-radius: 50%;
}

/* Worn/torn stamp */
.stamp.worn .stampInner {
  background: linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.2) 50%,
    rgba(255, 255, 255, 0.1) 100%
  );
}

.stamp.worn .stampBorder {
  border-style: solid;
  border-image: repeating-linear-gradient(
    45deg,
    var(--stamp-color, #00aa00) 0px,
    var(--stamp-color, #00aa00) 2px,
    transparent 2px,
    transparent 4px
  ) 3;
}

/* Faded stamp */
.stamp.faded {
  opacity: 0.4;
}

/* Glow effect */
.stamp.glow .stampText {
  text-shadow: 0 0 10px var(--stamp-color, #00aa00);
}

.stamp.glow .stampInner {
  box-shadow: 0 0 20px var(--stamp-color, #00aa00);
}

/* Oval stamp */
.stamp.oval .stampInner {
  border-radius: 50%;
  width: auto;
  padding: 0.5rem 1.5rem;
}

/* Circle stamp */
.stamp.circle .stampInner {
  border-radius: 50%;
  aspect-ratio: 1;
  padding: 0.5rem;
}

.stamp.circle .stampText {
  line-height: 1.4;
}

/* Rectangular stamp with cut corners */
.stamp.cut-corners .stampInner {
  border-radius: 0;
  clip-path: polygon(
    10px 0,
    100% 0,
    calc(100% - 10px) 100%,
    0 100%
  );
}