/* Global Styles */
* {
    -webkit-tap-highlight-color: transparent;
    box-sizing: border-box;
}

html {
    font-size: clamp(14px, 2vw, 16px);
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Arial, sans-serif;
    background: #f1f3f6;
    -webkit-font-smoothing: antialiased;
    -webkit-user-select: none;
    user-select: none;
    overflow-x: hidden;
}

.container {
    padding: max(12px, env(safe-area-inset-left)) 
             max(12px, env(safe-area-inset-right))
             max(12px, env(safe-area-inset-bottom))
             max(12px, env(safe-area-inset-top));
    max-width: 1000px;
    margin: auto;
}

/* Link Card Style */
.link-card {
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    background: white;
    padding: clamp(12px, 3vw, 20px);
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border: 2px solid transparent;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    touch-action: none;
}

/* State ketika card sedang di-drag (tidak transition transform agar real-time) */
.link-card.dragging-card {
    transition: background 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
    pointer-events: none;
}

/* Disable default active state saat dragging */
.link-card:active:not(.dragging-card) {
    transform: scale(0.95);
}

/* Focus state untuk keyboard navigation */
.link-card:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

.link-card:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Dragging state for long-press drag */
.link-card[style*="grabbing"] {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    border-color: #007bff;
    cursor: grabbing;
}

.link-card .icon-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: clamp(32px, 8vw, 48px);
    height: clamp(32px, 8vw, 48px);
    border-radius: 50%;
    background: #e9ecef;
    color: #495057;
    font-size: clamp(18px, 5vw, 28px);
    font-weight: bold;
    flex-shrink: 0;
}

.link-card .icon-placeholder i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: inherit;
}

.link-card-text {
    font-size: clamp(13px, 2.5vw, 16px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.3;
    user-select: text;
    -webkit-user-select: text;
}

/* Delete button - mobile-friendly dan accessible */
.link-card-delete {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    padding: 0;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: background 0.2s ease, opacity 0.2s ease;
    z-index: 10;
    min-height: 28px;
    min-width: 28px;
    -webkit-appearance: none;
    touch-action: manipulation;
}

.link-card-delete:hover {
    background: rgba(220, 53, 69, 1);
}

.link-card-delete:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(220, 53, 69, 0.25);
}

.link-card:hover .link-card-delete,
.link-card:focus-within .link-card-delete {
    display: flex;
}

/* Affordance: hint untuk long-press drag */
.link-card::before {
    content: "";
    position: absolute;
    top: 6px;
    left: 6px;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid #ccc;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

@media (max-width: 768px) {
    .link-card::before {
        opacity: 0.6;
    }
}

/* Header Style */
.header {
    display: flex;
    gap: clamp(8px, 2vw, 12px);
    margin-bottom: clamp(12px, 3vw, 20px);
    align-items: center;
}

.search-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: clamp(8px, 2vw, 12px);
    color: #999;
    font-size: clamp(14px, 3vw, 16px);
    pointer-events: none;
}

.search-input {
    flex: 1;
    padding: clamp(10px, 2.5vw, 14px);
    padding-left: clamp(32px, 8vw, 40px);
    border: none;
    border-radius: 10px;
    font-size: inherit;
    outline: none;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.15s ease;
    -webkit-appearance: none;
    user-select: text;
    -webkit-user-select: text;
}

.search-input:focus {
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

.search-input::placeholder {
    color: #999;
}

.header-actions {
    display: flex;
    gap: clamp(6px, 1.5vw, 10px);
}

.btn {
    padding: clamp(10px, 2.5vw, 14px) clamp(12px, 3vw, 18px);
    border: none;
    border-radius: 8px;
    font-size: clamp(14px, 2.5vw, 16px);
    outline: none;
    cursor: pointer;
    transition: opacity 0.2s ease, box-shadow 0.15s ease, transform 0.1s ease;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 44px;
    min-width: 44px;
    -webkit-appearance: none;
    -webkit-user-select: none;
}

.btn i {
    font-size: clamp(16px, 3.5vw, 20px);
}

.btn:hover {
    opacity: 0.85;
}

.btn:active {
    transform: scale(0.96);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.btn-export {
    background: #ffc107;
    color: black;
}

.btn-import {
    background: #17a2b8;
    color: white;
}

.btn-add {
    background: #007bff;
    color: white;
}

.btn-hide {
    display: none;
}

/* Form Style */
.link-form {
    display: none;
    background: white;
    padding: clamp(14px, 3vw, 20px);
    border-radius: 12px;
    margin-bottom: clamp(12px, 3vw, 20px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    animation: slideDown 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group {
    margin-bottom: clamp(10px, 2vw, 14px);
}

.form-group:last-of-type {
    margin-bottom: clamp(12px, 2.5vw, 16px);
}

.form-label {
    display: block;
    font-size: clamp(12px, 2vw, 14px);
    font-weight: 600;
    color: #333;
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: clamp(10px, 2.5vw, 14px);
    border: 1px solid #ddd;
    border-radius: 8px;
    outline: none;
    font-size: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    -webkit-appearance: none;
    font-family: inherit;
    min-height: 44px;
    user-select: text;
    -webkit-user-select: text;
}

.form-input:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-input::placeholder {
    color: #999;
}

.btn-save {
    width: 100%;
    padding: clamp(10px, 2.5vw, 14px);
    border: none;
    border-radius: 8px;
    background: #28a745;
    color: white;
    font-size: inherit;
    outline: none;
    cursor: pointer;
    font-weight: 600;
    transition: opacity 0.2s ease, box-shadow 0.15s ease;
    min-height: 44px;
    -webkit-appearance: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-save i {
    font-size: clamp(14px, 2.5vw, 16px);
}

.btn-save:hover {
    opacity: 0.9;
}

.btn-save:active {
    transform: scale(0.98);
}

.btn-save:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.25);
}

/* Links Grid */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(clamp(100px, 25vw, 140px), 1fr));
    gap: clamp(8px, 2vw, 12px);
}

/* Custom Modal Style */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
    padding: clamp(12px, 3vw, 20px);
    backdrop-filter: blur(2px);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: white;
    padding: clamp(20px, 5vw, 28px);
    border-radius: 16px;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    animation: slideUp 0.2s ease;
    position: relative;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: clamp(12px, 2vw, 16px);
    right: clamp(12px, 2vw, 16px);
    background: none;
    border: none;
    font-size: clamp(16px, 3vw, 20px);
    cursor: pointer;
    color: #666;
    padding: 6px;
    min-width: 40px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: #000;
}

.modal-title {
    margin-top: 0;
    margin-bottom: clamp(12px, 2.5vw, 16px);
    font-size: clamp(16px, 3vw, 20px);
    font-weight: 600;
    color: #333;
}

.modal-message {
    margin-bottom: clamp(16px, 3vw, 24px);
    color: #555;
    line-height: 1.5;
    font-size: clamp(14px, 2.5vw, 16px);
}

.modal-buttons {
    display: flex;
    gap: clamp(8px, 2vw, 12px);
    justify-content: flex-end;
    flex-wrap: wrap;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    opacity: 0.85;
}

.btn-secondary:focus {
    box-shadow: 0 0 0 3px rgba(108, 117, 125, 0.25);
}

.btn-primary {
    background: #dc3545;
    color: white;
}

.btn-primary:hover {
    opacity: 0.85;
}

.btn-primary:focus {
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.25);
}

.btn-success {
    background: #28a745;
    color: white;
}

/* Tablet Styles (md breakpoint) */
@media (max-width: 768px) {
    .container {
        padding: 12px;
    }

    .header {
        flex-wrap: wrap;
        gap: 10px;
    }

    .search-wrapper {
        width: calc(100% - 50px);
        order: 1;
    }

    .header-actions {
        order: 2;
        width: auto;
    }

    .links-grid {
        grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
        gap: 10px;
    }
}

/* Mobile Styles (sm breakpoint) */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 10px;
    }

    .header {
        gap: 8px;
        margin-bottom: 12px;
    }

    .search-wrapper {
        width: 100%;
        order: 1;
        margin-bottom: 8px;
    }

    .header-actions {
        width: 100%;
        order: 2;
        justify-content: space-between;
    }

    .btn {
        flex: 1;
        padding: 10px;
    }

    .links-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 8px;
    }

    .link-card {
        padding: 10px;
        min-height: 100px;
        border-radius: 10px;
    }

    .link-card-text {
        font-size: 12px;
    }

    .link-card .icon-placeholder {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    /* Show delete button on mobile by default for better UX */
    .link-card-delete {
        display: flex !important;
        background: rgba(220, 53, 69, 0.85);
    }

    .link-card-delete:active {
        background: rgba(220, 53, 69, 1);
    }

    .modal-content {
        max-width: none;
        width: calc(100% - 20px);
    }

    .btn-save {
        padding: 12px;
    }

    .form-input {
        font-size: 16px;
    }

    .search-input {
        font-size: 16px;
    }
}

/* Small mobile (xs breakpoint) */
@media (max-width: 360px) {
    .links-grid {
        grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
    }

    .link-card {
        padding: 8px;
        min-height: 95px;
    }

    .link-card .icon-placeholder {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }

    .link-card-text {
        font-size: 11px;
    }

    .btn {
        padding: 8px 10px;
    }

    .header-actions {
        gap: 4px;
    }
}