/* ===========================
   LAYOUT
   =========================== */

/* App Shell */
.app {
    display: flex;
    min-height: 100vh;
    background: var(--bg-base);
}

/* Sidebar — forest–emerald gradient + subtle paper grain */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background-color: #0e2419;
    background-image: var(--sidebar-paper-sheen), var(--gradient-sidebar);
    background-repeat: no-repeat, no-repeat;
    background-size: 100% 100%, 100% 100%;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--sidebar-paper-depth);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-normal);
    overflow: hidden;
}

.sidebar::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.14;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 180px 180px;
}

html[data-theme="light"] .sidebar::before {
    content: none;
}

html[data-theme="light"] .sidebar {
    background-color: #f4faf7;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-5) var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-identity {
    align-items: flex-start;
    padding-top: var(--space-6);
    padding-bottom: var(--space-5);
}

.sidebar-logo-mark {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--gradient-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.sidebar-logo-text {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo-sub {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.sidebar-identity .sidebar-logo-info {
    width: 100%;
}

.sidebar-identity .sidebar-logo-text {
    color: rgba(255, 255, 255, 0.96);
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.3;
}

.sidebar-identity .sidebar-logo-sub {
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.8rem;
    letter-spacing: 0.01em;
}

.sidebar-section {
    padding: var(--space-4) var(--space-3) var(--space-2);
}

.sidebar-section-label {
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    padding: 0 var(--space-2);
    margin-bottom: var(--space-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: #d8f0e4; /* Light sage */
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    margin-bottom: 2px;
}

.nav-item-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 1.2px solid rgba(255, 255, 255, 0.15); /* Soft border for sidebar boxes */
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    flex-shrink: 0;
}

.nav-item svg {
    width: 18px;
    height: 18px;
    stroke-width: 2.2;
}

.nav-item.active .nav-item-icon {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.1);
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.nav-item.active {
    background: var(--sidebar-accent);
    color: #ffffff;
}

.nav-item.active svg {
    color: #ffffff;
}

.nav-item .nav-badge {
    margin-left: auto;
    background: var(--sidebar-accent);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 7px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
}

.sidebar-footer {
    margin-top: auto;
    padding: var(--space-4);
    border-top: 1px solid var(--bg-border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.sidebar-user:hover {
    background: var(--bg-elevated);
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* Main area */
.main {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header — Jira Light style */
.header {
    height: var(--header-height);
    background: #ffffff;
    border-bottom: 1px solid var(--bg-border);
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    padding: 0 var(--space-8);
    gap: var(--space-4);
}

.header-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
}

.header-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-weight: 400;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: #ffffff;
    border: 1px solid var(--bg-border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-btn svg {
    width: 18px;
    height: 18px;
    stroke-width: 2.2;
}

.icon-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--brand-primary);
}

.icon-btn.has-dot {
    position: relative;
}

.icon-btn.has-dot::after {
    content: '';
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand-danger);
    border: 2px solid var(--bg-base);
}

.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-8);
    height: 54px;
    min-height: 54px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 60;
}

.main-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-muted);
}

.main-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.user-menu-summary {
    padding: 12px 14px 10px;
    border-bottom: 1px solid var(--bg-border);
}

.user-menu-name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.user-menu-role {
    margin-top: 3px;
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.user-menu-section {
    padding: 10px 14px 12px;
    border-top: 1px solid var(--bg-border);
    border-bottom: 1px solid var(--bg-border);
    background: var(--bg-elevated);
}

.user-menu-section-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.user-menu-sim-row {
    display: flex;
    gap: 6px;
    align-items: center;
}

.user-menu-sim-meta {
    margin-top: 6px;
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.user-menu-sim-meta strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Content area */
.content {
    flex: 1;
    padding: var(--space-8);
    max-width: var(--content-max);
    width: 100%;
}

.content-inner {
    max-width: var(--content-max);
}

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

.page-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.page-title .title-icon {
    display: inline-flex;
    align-items: center;
    color: var(--brand-primary);
}

.page-desc {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

/* Grid layouts */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
}

.grid-2-1 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-5);
}

@media (max-width: 1100px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2-1 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
    }

    .sidebar {
        transform: translateX(-240px);
    }

    .sidebar.open {
        transform: translateX(0);
        width: 240px;
    }

    .main {
        margin-left: 0;
    }

    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .form-row,
    .form-row-3 {
        grid-template-columns: 1fr;
    }

    .content {
        padding: var(--space-4);
    }
}

/* Steps / Breadcrumb */
.steps {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

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

.step-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-elevated);
    border: 1px solid var(--bg-border);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 600;
}

.step.active .step-num {
    background: var(--gradient-brand);
    border-color: transparent;
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.step.done .step-num {
    background: var(--brand-success);
    border-color: transparent;
    color: #fff;
}

.step-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.step.active .step-label {
    color: var(--text-primary);
    font-weight: 500;
}

.step-sep {
    color: var(--text-muted);
    font-size: var(--text-xs);
}