/* ========================================
   Integrity - UI Components
   ======================================== */

/* ----------------------------------------
   Header
   ---------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
    transition: transform 0.3s ease;
}

.header.header-hidden {
    transform: translateY(-100%);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    transition: transform 0.2s ease;
}

.header-logo:hover {
    transform: scale(1.02);
}

.header-logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.header-logo-icon svg {
    width: 22px;
    height: 22px;
}

.header-logo-text {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.header-nav-link {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius);
    transition: all 0.2s ease;
    position: relative;
}

.header-nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.header-nav-link.active {
    color: var(--accent);
}

.header-nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 50%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-8) 0;
    margin-top: auto;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-link {
    font-size: var(--text-sm);
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--text-secondary);
}

.footer-notice {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

/* ----------------------------------------
   Buttons (Enhanced with micro-interactions)
   ---------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    white-space: nowrap;
    transform: translateY(0);
}

.btn:hover:not(:disabled) {
    transform: translateY(-1px);
}

.btn:active:not(:disabled) {
    transform: translateY(0) scale(0.98);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--accent);
    color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-hover);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-hover);
}

.btn-ghost {
    background-color: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
}

/* ----------------------------------------
   Cards (Enhanced with hover effects)
   ---------------------------------------- */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all 0.25s ease;
}

.card-hover {
    cursor: pointer;
}

.card-hover:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.tool-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    text-decoration: none;
}

/* Tool Card Icon - Line style without background */
.tool-card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.25s ease;
}

.tool-card-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 1.5;
}

.card-hover:hover .tool-card-icon {
    color: var(--accent);
    transform: scale(1.1);
}

.tool-card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.tool-card-desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ----------------------------------------
   Forms
   ---------------------------------------- */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-sm);
    line-height: 1.6;
}

.form-input-mono {
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-sm);
}

/* ----------------------------------------
   Drop Zone (Enhanced with animations)
   ---------------------------------------- */
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-12) var(--space-6);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.drop-zone:hover {
    border-color: var(--accent);
    background-color: var(--accent-light);
}

.drop-zone.dragover {
    border-color: var(--accent);
    background-color: var(--accent-light);
    transform: scale(1.02);
}

.drop-zone.dragover .drop-zone-icon {
    animation: bounce 0.5s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.drop-zone-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    background-color: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.drop-zone:hover .drop-zone-icon {
    background-color: var(--accent);
    color: white;
}

.drop-zone-icon svg {
    width: 32px;
    height: 32px;
}

.drop-zone-text {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-1);
}

.drop-zone-hint {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.drop-zone input[type="file"] {
    display: none;
}

/* ----------------------------------------
   Results (Enhanced with animations)
   ---------------------------------------- */
.result-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
}

.result-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
}

.result-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-sm);
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.6;
}

.result-success {
    background-color: var(--accent-light);
    border-color: var(--accent);
}

.result-error {
    background-color: var(--error-light);
    border-color: var(--error);
}

/* ----------------------------------------
   Tabs
   ---------------------------------------- */
.tabs {
    display: inline-flex;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-1);
}

.tab-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-muted);
    background: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background-color: var(--accent);
    color: white;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

/* ----------------------------------------
   Toast / Notifications (Enhanced)
   ---------------------------------------- */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.toast {
    padding: var(--space-3) var(--space-4);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.toast-success {
    border-color: var(--accent);
    background-color: var(--accent-light);
}

.toast-error {
    border-color: var(--error);
    background-color: var(--error-light);
}

/* ----------------------------------------
   Breadcrumb
   ---------------------------------------- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-6);
}

.breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumb a:hover {
    color: var(--text-primary);
}

.breadcrumb-separator {
    color: var(--text-muted);
}

.breadcrumb-current {
    color: var(--text-secondary);
}

/* ----------------------------------------
   Page Header
   ---------------------------------------- */
.page-header {
    margin-bottom: var(--space-8);
}

.page-title {
    font-size: var(--text-3xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.page-desc {
    font-size: var(--text-base);
    color: var(--text-secondary);
    max-width: 600px;
}

/* ----------------------------------------
   Static Content Pages
   ---------------------------------------- */
.content-card {
    line-height: 1.8;
    color: var(--text-secondary);
}

.content-card .section-title {
    margin-top: var(--space-6);
    margin-bottom: var(--space-4);
    font-size: var(--text-lg);
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-primary);
}

.content-card .section-title:first-child {
    margin-top: 0;
}

.content-card .section-text {
    margin-bottom: var(--space-6);
}

.content-card .section-intro {
    margin-bottom: var(--space-3);
}

.content-card .section-list {
    margin: 0 0 var(--space-6) 1.2rem;
    list-style: disc;
}

.content-card .section-list li + li {
    margin-top: var(--space-2);
}

.content-card .section-text:last-child,
.content-card .section-list:last-child,
.content-card .tool-faq:last-child {
    margin-bottom: 0;
}

/* ----------------------------------------
   FAQ
   ---------------------------------------- */
.tool-faq {
    margin-top: var(--space-6);
}

.faq-item {
    margin-bottom: var(--space-4);
    padding: var(--space-4);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
}

.faq-item:last-child {
    margin-bottom: 0;
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: var(--text-lg);
    color: var(--text-muted);
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.faq-item[open] summary::after {
    content: '-';
}

.faq-item p {
    margin-top: var(--space-3);
    margin-bottom: 0;
}

/* ----------------------------------------
   Tool Grid
   ---------------------------------------- */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

/* ----------------------------------------
   Related Tools
   ---------------------------------------- */
.related-tools {
    margin-top: var(--space-10);
    padding-top: var(--space-8);
    padding-bottom: var(--space-4);
    border-top: 1px solid var(--border);
}

.related-tools-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.related-tools-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.related-tools-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.related-tools + .info-section,
.related-tools + .tool-content {
    margin-top: var(--space-10);
}

.related-tools-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
}

/* ----------------------------------------
   Info Section
   ---------------------------------------- */
.info-section {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border);
}

.info-section h2 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-4);
}

.info-section p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ----------------------------------------
   Theme Toggle (Enhanced)
   ---------------------------------------- */
.theme-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    transform: rotate(15deg);
}

.theme-toggle:active {
    transform: rotate(0deg) scale(0.95);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

/* ----------------------------------------
   Language Toggle (Enhanced)
   ---------------------------------------- */
.lang-toggle {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-2) var(--space-3);
    cursor: pointer;
    transition: all 0.2s ease;
}

.lang-toggle:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* ----------------------------------------
   File Info
   ---------------------------------------- */
.file-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    animation: slideUp 0.3s ease-out;
}

.file-info-icon {
    width: 40px;
    height: 40px;
    background-color: var(--accent-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.file-info-icon svg {
    width: 20px;
    height: 20px;
}

.file-info-name {
    font-weight: 500;
    color: var(--text-primary);
}

.file-info-size {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ----------------------------------------
   Copy Button (Enhanced with feedback)
   ---------------------------------------- */
.copy-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: var(--radius);
}

.copy-btn:hover {
    color: var(--accent);
    background-color: var(--accent-light);
}

.copy-btn:active {
    transform: scale(0.95);
}

.copy-btn svg {
    width: 14px;
    height: 14px;
}

/* ----------------------------------------
   Ad Placeholder
   ---------------------------------------- */
.ad-placeholder {
    display: none;
    padding: var(--space-4);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    text-align: center;
    margin-top: var(--space-8);
}

.ad-placeholder-text {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* ----------------------------------------
   Hash Results (Staggered animation)
   ---------------------------------------- */
.hash-results {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.hash-results .result-box:nth-child(1) { animation-delay: 0s; }
.hash-results .result-box:nth-child(2) { animation-delay: 0.1s; }
.hash-results .result-box:nth-child(3) { animation-delay: 0.2s; }

/* ----------------------------------------
   GNB (Global Navigation Bar)
   ---------------------------------------- */
.gnb {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border);
}

.gnb-burger {
    display: none;
}

.gnb-scroll {
    display: flex;
    align-items: center;
    gap: 0;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.gnb-scroll::-webkit-scrollbar {
    display: none;
}

.gnb-link {
    flex-shrink: 0;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    transition: color 0.2s ease;
}

.gnb-label-desktop {
    display: inline;
}

.gnb-label-mobile {
    display: none;
}

.gnb-label-line {
    display: block;
}

.gnb-link:hover {
    color: var(--text-primary);
}

.gnb-link-active {
    color: var(--accent);
    font-weight: 600;
}

.gnb-link-active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-4);
    right: var(--space-4);
    height: 2px;
    background-color: var(--accent);
    border-radius: 1px;
}

.gnb-overlay {
    display: none;
}

/* ----------------------------------------
   Mobile Navigation
   ---------------------------------------- */
.mobile-menu-btn {
    display: none;
}

@media (max-width: 768px) {
    .header-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-inner {
        height: 56px;
    }
    
    .page-title {
        font-size: var(--text-2xl);
    }
    
    .tool-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
        bottom: var(--space-4);
    }

    /* GNB Mobile */
    .gnb-burger {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        background: none;
        border: none;
        color: var(--text-secondary);
        cursor: pointer;
        padding: var(--space-2);
    }

    .gnb-burger-open {
        position: relative;
        z-index: 202;
        color: var(--text-primary);
    }

    .gnb-burger svg {
        width: 22px;
        height: 22px;
    }

    .gnb-burger .gnb-close-icon {
        display: none;
    }

    .gnb-burger-open .gnb-burger-icon {
        display: none;
    }

    .gnb-burger-open .gnb-close-icon {
        display: block;
    }

    .gnb-scroll {
        display: none;
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 201;
        overflow-y: auto;
        background-color: var(--bg-primary);
        padding: var(--space-4);
        max-width: none;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--space-3);
        align-content: start;
    }

    .gnb-scroll-open {
        display: grid;
    }

    .gnb-link {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 64px;
        padding: var(--space-2);
        font-size: var(--text-sm);
        font-weight: 600;
        text-align: center;
        white-space: normal;
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        background-color: var(--bg-secondary);
    }

    .gnb-label-desktop {
        display: none;
    }

    .gnb-label-mobile {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        line-height: 1.2;
    }

    .gnb-link-active {
        background-color: var(--accent-light);
        border-color: var(--accent);
        color: var(--accent);
    }

    .gnb-link-active::after {
        display: none;
    }

    .gnb-overlay {
        display: none;
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 200;
        background-color: rgba(0, 0, 0, 0.5);
    }

    .gnb-overlay-open {
        display: block;
    }
}