/* =========================================================================
   LOADINGKEREN - Global Loading Animation
   File: assets/css/loadingkeren.css
   
   Cara pakai:
   1. Tambahkan class "lk-loading-parent" pada parent container
   2. Tambahkan HTML overlay di dalam container:
      <div class="lk-loading-overlay" id="lkLoading">
        <div class="lk-loading-spinner">
          <div class="lk-loading-ring"></div>
          <div class="lk-loading-ring lk-loading-ring--inner"></div>
          <div class="lk-loading-icon"><i class="fas fa-sync-alt"></i></div>
        </div>
        <div class="lk-loading-text">
          <span class="lk-loading-text__label">Memuat data</span>
          <div class="lk-loading-dots">
            <span class="lk-loading-dot"></span>
            <span class="lk-loading-dot"></span>
            <span class="lk-loading-dot"></span>
          </div>
        </div>
      </div>
   
   3. Toggle class "active" pada overlay:
      - Show: document.getElementById('lkLoading').classList.add('active')
      - Hide: document.getElementById('lkLoading').classList.remove('active')
   
   4. Icon bisa diganti (fas fa-wifi, fas fa-sync-alt, fas fa-spinner, dll)
   4. Teks bisa diganti sesuai kebutuhan
   ========================================================================= */

/* Parent container harus relative */
.lk-loading-parent {
    position: relative;
}

/* Loading Overlay */
.lk-loading-overlay {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    z-index: 50;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    border-radius: inherit;
}

/* Dark mode support */
html[data-theme="dark"] .lk-loading-overlay,
.dark .lk-loading-overlay,
.theme-dark .lk-loading-overlay {
    background: rgba(17, 31, 45, 0.92);
}

.lk-loading-overlay.active {
    display: flex;
}

/* Spinner */
.lk-loading-spinner {
    position: relative;
    width: 80px;
    height: 80px;
}

.lk-loading-ring {
    position: absolute;
    inset: 0;
    border: 3px solid transparent;
    border-top-color: #6366f1;
    border-radius: 50%;
    animation: lk-spin 1.2s linear infinite;
}

.lk-loading-ring--inner {
    inset: 10px;
    border-top-color: #10b981;
    animation-duration: 0.9s;
    animation-direction: reverse;
}

.lk-loading-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #6366f1;
    animation: lk-pulse 1.5s ease-in-out infinite;
}

@keyframes lk-spin {
    to { transform: rotate(360deg); }
}

@keyframes lk-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: 0.7; }
}

/* Loading Text */
.lk-loading-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.lk-loading-text__label {
    font-size: 14px;
    font-weight: 600;
    color: #475569;
    letter-spacing: 0.3px;
}

.lk-loading-dots {
    display: flex;
    gap: 6px;
}

.lk-loading-dot {
    width: 8px;
    height: 8px;
    background: #6366f1;
    border-radius: 50%;
    animation: lk-dot-bounce 1.4s ease-in-out infinite;
}

.lk-loading-dot:nth-child(2) { animation-delay: 0.2s; }
.lk-loading-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes lk-dot-bounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* Variant: Small size */
.lk-loading-overlay.lk-loading--small .lk-loading-spinner {
    width: 50px;
    height: 50px;
}

.lk-loading-overlay.lk-loading--small .lk-loading-ring {
    border-width: 2px;
}

.lk-loading-overlay.lk-loading--small .lk-loading-ring--inner {
    inset: 8px;
}

.lk-loading-overlay.lk-loading--small .lk-loading-icon {
    font-size: 18px;
}

.lk-loading-overlay.lk-loading--small .lk-loading-text__label {
    font-size: 12px;
}

.lk-loading-overlay.lk-loading--small .lk-loading-dot {
    width: 6px;
    height: 6px;
}

/* Variant: Large size */
.lk-loading-overlay.lk-loading--large .lk-loading-spinner {
    width: 100px;
    height: 100px;
}

.lk-loading-overlay.lk-loading--large .lk-loading-ring {
    border-width: 4px;
}

.lk-loading-overlay.lk-loading--large .lk-loading-ring--inner {
    inset: 14px;
}

.lk-loading-overlay.lk-loading--large .lk-loading-icon {
    font-size: 30px;
}

.lk-loading-overlay.lk-loading--large .lk-loading-text__label {
    font-size: 16px;
}

.lk-loading-overlay.lk-loading--large .lk-loading-dot {
    width: 10px;
    height: 10px;
}

/* Variant: Inline (for buttons) */
.lk-loading-overlay.lk-loading--inline {
    position: absolute;
    border-radius: inherit;
}

.lk-loading-overlay.lk-loading--inline .lk-loading-spinner {
    width: 30px;
    height: 30px;
}

.lk-loading-overlay.lk-loading--inline .lk-loading-ring {
    border-width: 2px;
}

.lk-loading-overlay.lk-loading--inline .lk-loading-ring--inner {
    inset: 5px;
}

.lk-loading-overlay.lk-loading--inline .lk-loading-icon {
    font-size: 14px;
}

.lk-loading-overlay.lk-loading--inline .lk-loading-text {
    display: none;
}

/* Variant: Overlay full page */
.lk-loading-overlay.lk-loading--fullscreen {
    position: fixed;
    z-index: 9999;
}