:root {
    --color-bg: #f5f5f7;
    --color-surface: #ffffff;
    --color-surface-elevated: #ffffff;
    --color-border: rgba(0,0,0,0.06);
    --color-border-strong: rgba(0,0,0,0.1);
    --color-text: #1d1d1f;
    --color-text-secondary: #86868b;
    --color-muted: #6e6e73;
    --color-primary: #0071e3;
    --color-primary-hover: #0077ed;
    --color-primary-subtle: rgba(0,113,227,0.06);
    --color-success: #34c759;
    --color-success-subtle: rgba(52,199,89,0.08);
    --color-danger: #ff3b30;
    --color-danger-subtle: rgba(255,59,48,0.08);
    --color-warning: #ff9500;
    --color-warning-subtle: rgba(255,149,0,0.08);
    --color-info: #5ac8fa;
    --color-info-subtle: rgba(90,200,250,0.08);
    --color-purple: #af52de;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 8px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.08);
    --shadow-float: 0 12px 40px rgba(0,0,0,0.12);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --glass-bg: rgba(255,255,255,0.72);
    --glass-border: rgba(255,255,255,0.5);
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #000000;
        --color-surface: #1c1c1e;
        --color-surface-elevated: #2c2c2e;
        --color-border: rgba(255,255,255,0.08);
        --color-border-strong: rgba(255,255,255,0.14);
        --color-text: #f5f5f7;
        --color-text-secondary: #98989d;
        --color-muted: #86868b;
        --color-primary-subtle: rgba(0,113,227,0.15);
        --color-success-subtle: rgba(52,199,89,0.15);
        --color-danger-subtle: rgba(255,59,48,0.15);
        --color-warning-subtle: rgba(255,149,0,0.15);
        --color-info-subtle: rgba(90,200,250,0.15);
        --glass-bg: rgba(28,28,30,0.72);
        --glass-border: rgba(255,255,255,0.08);
    }
}

* { box-sizing: border-box; margin: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', system-ui, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.47;
    letter-spacing: -0.022em;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,113,227,0.3); }
    50% { box-shadow: 0 0 0 8px rgba(0,113,227,0); }
}

.animate-in {
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.animate-shake { animation: shake 0.3s ease-in-out; }

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,113,227,0.12) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
}

.auth-page::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(175,82,222,0.1) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    pointer-events: none;
}

.auth-container { width: 100%; max-width: 400px; position: relative; z-index: 1; }

.auth-card {
    background: var(--color-surface);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: var(--shadow-float);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(20px);
}

.auth-logo { max-height: 48px; }

.auth-card .form-control {
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    background: var(--color-bg);
    font-size: 0.9375rem;
}

.auth-card .form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-subtle);
    background: var(--color-surface);
}

.auth-card .form-floating label {
    color: var(--color-muted);
    font-size: 0.875rem;
}

.btn-primary {
    background: var(--color-primary);
    border: none;
    border-radius: 980px;
    transition: var(--transition);
    letter-spacing: -0.01em;
    font-size: 0.9375rem;
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.12) 0%, transparent 100%);
    pointer-events: none;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: scale(1.01);
    box-shadow: 0 4px 16px rgba(0,113,227,0.3);
}

.btn-primary:active { transform: scale(0.99); }

.top-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0;
    background: var(--glass-bg);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.top-nav > .container {
    height: 52px;
}

.top-nav .nav-link {
    color: var(--color-muted);
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.375rem 0.75rem;
    border-radius: 980px;
    transition: var(--transition);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.top-nav .nav-link:hover {
    color: var(--color-text);
    background: var(--color-primary-subtle);
}

.top-nav .nav-link.active-link {
    color: var(--color-primary);
    background: var(--color-primary-subtle);
    font-weight: 600;
}

.top-nav .brand {
    font-weight: 700;
    font-size: 1.0625rem;
    color: var(--color-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.03em;
}

.badge-admin {
    background: linear-gradient(135deg, var(--color-danger), #ff6259);
    color: white;
    font-size: 0.5625rem;
    padding: 0.15em 0.5em;
    border-radius: 5px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
}

.user-pill {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem 0.25rem 0.25rem;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: 980px;
    font-size: 0.8125rem;
    color: var(--color-text);
    font-weight: 500;
    letter-spacing: -0.01em;
}

.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0;
}

.card-modern {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    overflow: hidden;
}

.card-modern:hover {
    box-shadow: var(--shadow);
    border-color: var(--color-border-strong);
}

.project-card { margin-bottom: 0.75rem; }

.project-card .card-header-modern {
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-surface);
}

.project-card .card-body { padding: 1.25rem; }

.project-title {
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.project-id {
    color: var(--color-muted);
    font-weight: 400;
    font-size: 0.75rem;
    margin-left: 0.25rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    border-radius: 980px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.status-pending { background: var(--color-surface-elevated); color: var(--color-muted); }
.status-in_progress { background: var(--color-primary-subtle); color: var(--color-primary); }
.status-review { background: var(--color-info-subtle); color: var(--color-info); }
.status-completed { background: var(--color-success-subtle); color: var(--color-success); }
.status-cancelled { background: var(--color-danger-subtle); color: var(--color-danger); }

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
    display: inline-block;
}

.sidebar-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.sidebar-card h6 {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    margin-bottom: 1rem;
    font-weight: 600;
}

.filter-list { list-style: none; padding: 0; margin: 0; }

.filter-list li + li { margin-top: 1px; }

.filter-list a {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-xs);
    font-size: 0.8125rem;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    letter-spacing: -0.01em;
}

.filter-list a:hover { background: var(--color-primary-subtle); }

.filter-list a.active {
    background: var(--color-primary-subtle);
    color: var(--color-primary);
    font-weight: 600;
}

.filter-count {
    margin-left: auto;
    font-size: 0.6875rem;
    background: var(--color-surface-elevated);
    padding: 0.125rem 0.5rem;
    border-radius: 980px;
    color: var(--color-muted);
    font-weight: 600;
    min-width: 24px;
    text-align: center;
    border: 1px solid var(--color-border);
}

.note-bubble {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    margin-bottom: 0.5rem;
    line-height: 1.5;
    letter-spacing: -0.01em;
}

.note-bubble.note-regular { background: var(--color-bg); border: 1px solid var(--color-border); }

.note-bubble.note-private {
    background: var(--color-warning-subtle);
    border: 1px solid rgba(255,149,0,0.15);
    border-left: 3px solid var(--color-warning);
}

.note-author {
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--color-text);
}

.note-time {
    font-size: 0.6875rem;
    color: var(--color-muted);
}

.note-input-group {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    align-items: center;
}

.note-input-group input[type="text"] {
    flex: 1;
    border: 1px solid var(--color-border-strong);
    border-radius: 980px;
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    transition: var(--transition);
    background: var(--color-bg);
    color: var(--color-text);
}

.note-input-group input[type="text"]:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
    outline: none;
    background: var(--color-surface);
}

.btn-send {
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 980px;
    padding: 0.5rem 1.125rem;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.btn-send::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255,255,255,0.15) 0%, transparent 100%);
    pointer-events: none;
}

.btn-send:hover {
    background: var(--color-primary-hover);
    transform: scale(1.02);
}

.file-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem 0.75rem;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: 980px;
    font-size: 0.75rem;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.file-chip:hover {
    background: var(--color-primary-subtle);
    color: var(--color-primary);
    border-color: rgba(0,113,227,0.2);
    transform: translateY(-1px);
}

.upload-label {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.3rem 0.75rem;
    border: 1px dashed var(--color-border-strong);
    border-radius: 980px;
    font-size: 0.75rem;
    color: var(--color-muted);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.upload-label:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-subtle);
}

.delivery-box {
    background: var(--color-success-subtle);
    border: 1px solid rgba(52,199,89,0.15);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-bottom: 1rem;
}

.delivery-box a { color: var(--color-success); font-weight: 600; text-decoration: none; }
.delivery-box a:hover { text-decoration: underline; }

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-purple));
    opacity: 0;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before { opacity: 1; }

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.04em;
}

.stat-label {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    font-weight: 600;
    margin-top: 0.375rem;
}

.status-select {
    appearance: none;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border-strong);
    border-radius: 980px;
    padding: 0.375rem 2rem 0.375rem 0.875rem;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--color-text);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2386868b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.625rem center;
}

.status-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
    outline: none;
}

.form-modern {
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-xs);
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    transition: var(--transition);
    background: var(--color-bg);
    color: var(--color-text);
    width: 100%;
    letter-spacing: -0.01em;
}

.form-modern:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
    outline: none;
    background: var(--color-surface);
}

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

.btn-modern {
    border: none;
    border-radius: 980px;
    padding: 0.5rem 1.25rem;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: -0.01em;
    position: relative;
}

.btn-modern:hover { transform: translateY(-1px); }
.btn-modern:active { transform: translateY(0); }

.btn-modern-primary {
    background: var(--color-primary);
    color: white;
}

.btn-modern-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255,255,255,0.12) 0%, transparent 100%);
    pointer-events: none;
}

.btn-modern-primary:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 4px 16px rgba(0,113,227,0.3);
    color: white;
}

.btn-modern-dark {
    background: var(--color-text);
    color: var(--color-bg);
}

.btn-modern-dark:hover { opacity: 0.88; color: var(--color-bg); }

.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-modern th {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
    font-weight: 600;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    position: sticky;
    top: 52px;
    z-index: 10;
}

.table-modern td {
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.table-modern tr:last-child td { border-bottom: none; }

.table-modern tbody tr {
    transition: var(--transition);
}

.table-modern tbody tr:hover td { background: var(--color-primary-subtle); }

.badge-role {
    padding: 0.2rem 0.5rem;
    border-radius: 5px;
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-role-admin { background: var(--color-text); color: var(--color-bg); }
.badge-role-client { background: var(--color-surface-elevated); color: var(--color-muted); border: 1px solid var(--color-border); }

.badge-status-active { background: var(--color-success-subtle); color: var(--color-success); }
.badge-status-inactive { background: var(--color-danger-subtle); color: var(--color-danger); }

.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--color-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
    filter: grayscale(1);
}

.private-check {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    color: var(--color-muted);
    padding: 0 0.5rem;
    white-space: nowrap;
    cursor: pointer;
}

.private-check input[type="checkbox"] {
    accent-color: var(--color-warning);
}

.description-text {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    letter-spacing: -0.01em;
}

.admin-status-group {
    display: flex;
    gap: 1px;
    border-radius: 980px;
    overflow: hidden;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.admin-status-btn {
    border: none;
    padding: 0.3rem 0.625rem;
    font-size: 0.625rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    background: var(--color-surface);
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.admin-status-btn:hover { background: var(--color-primary-subtle); color: var(--color-primary); }
.admin-status-btn.active-status { background: var(--color-primary); color: white; }

.delivery-form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

@media (min-width: 768px) {
    .delivery-form-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.delivery-input {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xs);
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    background: var(--color-bg);
    color: var(--color-text);
    transition: var(--transition);
    width: 100%;
}

.delivery-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
    outline: none;
    background: var(--color-surface);
}

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

.alert {
    border-radius: var(--radius-sm);
}

.section-heading {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    font-weight: 600;
    margin-bottom: 0;
}

@media (max-width: 767.98px) {
    .auth-card { padding: 1.75rem; border-radius: 20px; }
    .top-nav > .container { padding-left: 1rem; padding-right: 1rem; }
    .admin-status-group { flex-wrap: wrap; border-radius: var(--radius-xs); }
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-muted); }

::selection { background: var(--color-primary-subtle); color: var(--color-primary); }