@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ================================================================
   V3 Global Variables & Theme (SPA Style)
================================================================ */
:root {
    --usp-font: 'Outfit', sans-serif;
    --usp-primary: #6366f1;
    --usp-primary-h: #4f46e5;
    --usp-secondary: #8b5cf6;
    --usp-accent: #06b6d4;
    --usp-green: #10b981;
    --usp-red: #ef4444;
    --usp-radius: 20px;
    --usp-radius-sm: 12px;
    --usp-tr: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Default Dark Mode (Legacy) */
    --usp-bg: #0a0e1a;
    --usp-sidebar: #0f172a;
    --usp-surface: rgba(255, 255, 255, 0.06);
    --usp-surface-h: rgba(255, 255, 255, 0.10);
    --usp-border: rgba(255, 255, 255, 0.10);
    --usp-text: #f1f5f9;
    --usp-muted: #94a3b8;
    --usp-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
}

/* Light Mode Toggle */
[data-theme="light"] {
    --usp-bg: #f8fafc;
    --usp-sidebar: #ffffff;
    --usp-surface: #ffffff;
    --usp-surface-h: #f1f5f9;
    --usp-border: #e2e8f0;
    --usp-text: #1e293b;
    --usp-muted: #64748b;
    --usp-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.usp-app {
    font-family: var(--usp-font);
    color: var(--usp-text);
    background: var(--usp-bg);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    transition: background var(--usp-tr), color var(--usp-tr);
}

/* Blobs for ambiance */
.usp-blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: .15;
    pointer-events: none;
    z-index: 0;
}

.usp-blob-1 {
    width: 500px;
    height: 500px;
    background: var(--usp-primary);
    top: -100px;
    left: -100px;
}

.usp-blob-2 {
    width: 600px;
    height: 600px;
    background: var(--usp-secondary);
    bottom: -150px;
    right: -150px;
}

/* ================================================================
   Dashboard Layout (Vertical Sidebar Sidebar)
================================================================ */
.usp-dash-layout {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.usp-dash-sidebar {
    width: 280px;
    background: var(--usp-sidebar);
    border-right: 1px solid var(--usp-border);
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    transition: background var(--usp-tr), border var(--usp-tr);
}

.usp-dash-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 50px;
    padding: 0 10px;
}

.usp-dash-logo {
    font-size: 2rem;
}

.usp-dash-brand-name {
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--usp-primary), var(--usp-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.usp-dash-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.usp-nav-item {
    padding: 14px 18px;
    background: transparent;
    border: none;
    border-radius: var(--usp-radius-sm);
    color: var(--usp-muted);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: all var(--usp-tr);
    display: flex;
    align-items: center;
    gap: 12px;
}

.usp-nav-item:hover {
    background: var(--usp-surface-h);
    color: var(--usp-text);
}

.usp-nav-item.active {
    background: var(--usp-primary);
    color: #fff;
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.25);
}

.usp-sidebar-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--usp-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.usp-theme-btn,
.usp-logout-btn {
    background: var(--usp-surface);
    border: 1px solid var(--usp-border);
    border-radius: 10px;
    padding: 10px;
    cursor: pointer;
    color: var(--usp-text);
    font-size: 1.1rem;
    transition: all var(--usp-tr);
    text-decoration: none;
}

.usp-theme-btn:hover,
.usp-logout-btn:hover {
    background: var(--usp-surface-h);
}

/* ================================================================
   Main Content Area
================================================================ */
.usp-dash-main {
    flex: 1;
    padding: 40px 50px;
    display: flex;
    flex-direction: column;
}

.usp-dash-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.usp-dash-header h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin: 0;
}

.usp-header-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.usp-header-stats {
    display: flex;
    gap: 20px;
}

.usp-h-stat {
    text-align: right;
}

.usp-h-stat strong {
    display: block;
    font-size: 1.4rem;
    color: var(--usp-primary);
}

.usp-h-stat span {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--usp-muted);
    letter-spacing: 0.5px;
}

/* Components */
.usp-btn-primary {
    background: linear-gradient(135deg, var(--usp-primary), var(--usp-secondary));
    border: none;
    border-radius: 12px;
    color: #fff;
    font-weight: 700;
    padding: 14px 24px;
    cursor: pointer;
    transition: all var(--usp-tr);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.usp-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.45);
}

.usp-btn-secondary {
    background: var(--usp-surface);
    border: 1px solid var(--usp-border);
    border-radius: 12px;
    color: var(--usp-text);
    font-weight: 600;
    padding: 12px 20px;
    cursor: pointer;
    transition: all var(--usp-tr);
}

.usp-btn-secondary:hover {
    background: var(--usp-surface-h);
}

/* ================================================================
   Tabs & SPA Behavior
================================================================ */
.usp-tab-panel {
    display: none;
    width: 100%;
    animation: uspFadeIn 0.4s ease forwards;
}

.usp-tab-panel.active {
    display: block;
}

@keyframes uspFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Links Tab */
.usp-links-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    gap: 15px;
}

#usp-link-search {
    flex: 1;
    background: var(--usp-surface);
    border: 1px solid var(--usp-border);
    border-radius: 12px;
    padding: 12px 20px;
    color: var(--usp-text);
    outline: none;
    transition: border var(--usp-tr);
}

#usp-link-search:focus {
    border-color: var(--usp-primary);
}

.usp-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.usp-link-card {
    background: var(--usp-surface);
    border: 1px solid var(--usp-border);
    border-radius: var(--usp-radius);
    padding: 24px;
    transition: all var(--usp-tr);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.usp-link-card:hover {
    transform: translateY(-4px);
    border-color: var(--usp-primary);
    box-shadow: var(--usp-shadow);
}

.usp-lc-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.usp-lc-short {
    color: var(--usp-primary);
    font-weight: 700;
    text-decoration: none;
    font-size: 1.1rem;
}

.usp-lc-badge {
    background: rgba(99, 102, 241, 0.1);
    color: var(--usp-primary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.usp-lc-long {
    font-size: 0.9rem;
    color: var(--usp-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.usp-lc-footer {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--usp-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.usp-lc-date {
    font-size: 0.8rem;
    color: var(--usp-muted);
}

.usp-lc-btns {
    display: flex;
    gap: 8px;
}

.usp-lc-btn {
    background: var(--usp-surface);
    border: 1px solid var(--usp-border);
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--usp-text);
    transition: all 0.2s;
}

.usp-lc-btn:hover {
    background: var(--usp-primary);
    color: #fff;
    transform: scale(1.1);
}

/* ================================================================
   Analytics Tab
================================================================ */
.usp-analytics-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.usp-period-btns {
    display: flex;
    background: var(--usp-surface);
    padding: 5px;
    border-radius: 12px;
    border: 1px solid var(--usp-border);
}

.usp-period-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--usp-muted);
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s;
}

.usp-period-btn.active {
    background: var(--usp-primary);
    color: #fff;
}

.usp-chart-card {
    background: var(--usp-surface);
    border-radius: var(--usp-radius);
    padding: 25px;
    border: 1px solid var(--usp-border);
}

.usp-chart-card h3 {
    margin: 0 0 20px;
    font-size: 1rem;
    color: var(--usp-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.usp-chart-main {
    margin-bottom: 25px;
    height: 350px;
}

.usp-charts-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

/* ================================================================
   Modals
================================================================ */
.usp-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.usp-modal-content {
    background: var(--usp-sidebar);
    border: 1px solid var(--usp-border);
    border-radius: var(--usp-radius);
    padding: 35px;
    width: 100%;
    max-width: 500px;
    position: relative;
    animation: uspPop 0.3s ease;
}

@keyframes uspPop {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.usp-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--usp-muted);
    cursor: pointer;
}

.usp-v3-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.usp-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.usp-f-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.usp-f-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--usp-muted);
}

.usp-f-group input,
.usp-f-group select {
    background: var(--usp-surface);
    border: 1px solid var(--usp-border);
    padding: 12px 15px;
    border-radius: 10px;
    color: var(--usp-text);
    outline: none;
}

.usp-f-group input:focus {
    border-color: var(--usp-primary);
}

/* API Tab */
.usp-api-card {
    max-width: 700px;
}

.usp-api-key-wrap {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--usp-surface);
    padding: 15px;
    border-radius: 15px;
    border: 1px dashed var(--usp-border);
    margin: 20px 0;
}

.usp-api-key-wrap code {
    flex: 1;
    font-weight: 700;
    color: var(--usp-primary);
    word-break: break-all;
}

.usp-api-docs {
    margin-top: 30px;
}

.usp-api-docs pre {
    background: #000;
    color: #10b981;
    padding: 20px;
    border-radius: 12px;
    font-size: 0.85rem;
    overflow-x: auto;
}

/* Responsive */
@media (max-width: 1024px) {
    .usp-dash-sidebar {
        width: 80px;
        padding: 20px 10px;
    }

    .usp-dash-brand-name,
    .usp-nav-item span,
    .usp-nav-item i,
    .usp-sidebar-footer span {
        display: none;
    }

    .usp-nav-item {
        justify-content: center;
        padding: 15px;
    }

    .usp-dash-main {
        padding: 30px;
    }

    .usp-charts-grid-3 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .usp-dash-layout {
        flex-direction: column;
    }

    .usp-dash-sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--usp-border);
        flex-direction: row;
        align-items: center;
    }

    .usp-dash-brand {
        margin-bottom: 0;
    }

    .usp-dash-nav {
        flex-direction: row;
        margin-left: 20px;
    }

    .usp-dash-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .usp-header-right {
        width: 100%;
        justify-content: space-between;
    }
}