/* ============================================
   Icons & Micro-animations - Paper Style
   ============================================ */

/* Floating paper animation */
@keyframes float-paper {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-8px) rotate(1deg); }
    75% { transform: translateY(-4px) rotate(-1deg); }
}

.float-anim {
    animation: float-paper 6s ease-in-out infinite;
}

/* Paper fold corner */
.paper-fold {
    position: relative;
}

.paper-fold::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 24px 24px 0;
    border-color: transparent var(--paper-bg) transparent transparent;
    box-shadow: -2px 2px 3px rgba(0,0,0,0.06);
    transition: var(--transition);
}

/* Stamp effect */
.stamp {
    display: inline-flex;
    padding: 6px 12px;
    border: 2px dashed var(--primary);
    border-radius: var(--radius-sm);
    transform: rotate(-3deg);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--primary);
    letter-spacing: 1px;
}

/* Paper clip icon */
.paper-clip {
    position: relative;
}

.paper-clip::before {
    content: '';
    position: absolute;
    top: -8px;
    right: 20px;
    width: 20px;
    height: 32px;
    border: 3px solid var(--text-muted);
    border-radius: 10px 10px 0 0;
    border-bottom: none;
    z-index: 2;
}

/* Stacked layers effect */
.paper-stack {
    position: relative;
}

.paper-stack::before,
.paper-stack::after {
    content: '';
    position: absolute;
    background: var(--card-white);
    border-radius: inherit;
    z-index: -1;
}

.paper-stack::before {
    inset: 4px -4px -4px 4px;
    box-shadow: var(--shadow-sm);
    transform: rotate(1deg);
}

.paper-stack::after {
    inset: 8px -2px -8px 2px;
    box-shadow: var(--shadow-xs);
    transform: rotate(-0.5deg);
}

/* Tape effect */
.tape {
    position: relative;
}

.tape::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 20px;
    background: rgba(238,108,77,0.15);
    border-radius: 2px;
    z-index: 2;
}

/* Spin animation for loading */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 2s linear infinite;
}

/* Scale in animation */
@keyframes scale-in {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.scale-in {
    animation: scale-in 0.3s ease forwards;
}

/* Slide up animation */
@keyframes slide-up {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.slide-up {
    animation: slide-up 0.4s ease forwards;
}