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

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

:root {
    --bg: #0d0d0d;
    --bg-card: #1a1a1a;
    --bg-input: #141414;
    --red: #e53935;
    --orange: #ff9100;
    --yellow: #fdd835;
    --green: #43a047;
    --cyan: #29b6f6;
    --blue: #42a5f5;
    --purple: #ab47bc;
    --pink: #ec407a;
    --text: #f0f0f0;
    --text-dim: #a0a0a0;
    --border: #2a2a2a;
    --accent: #e53935;
}

/* App Layout */
.app-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: 100vh;
    transition: grid-template-columns 0.2s ease;
}

.app-layout.sidebar-collapsed {
    grid-template-columns: 64px 1fr;
}

/* Sidebar */
.sidebar {
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 200;
    transition: width 0.2s ease;
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-bottom: 1px solid var(--border);
    min-height: 56px;
}

.sidebar-logo-text {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    opacity: 1;
    transition: opacity 0.15s;
}

.sidebar-collapsed .sidebar-logo-text {
    opacity: 0;
    width: 0;
}

.sidebar-nav {
    flex: 1;
    padding: 8px;
    overflow-y: auto;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-dim);
    transition: all 0.15s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2px;
}

.sidebar-item:hover {
    background: var(--bg-input);
    color: var(--text);
}

.sidebar-item.active {
    background: var(--bg-input);
    color: #fff;
    border-left: 3px solid var(--accent);
    padding-left: 9px;
}

.sidebar-item iconify-icon {
    flex-shrink: 0;
}

.sidebar-item-text {
    white-space: nowrap;
    opacity: 1;
    transition: opacity 0.15s;
}

.sidebar-collapsed .sidebar-item-text {
    opacity: 0;
    width: 0;
}

.sidebar-footer {
    padding: 8px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

/* Header */
.main-area {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0 24px;
    height: 56px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.15s;
}

.header-hamburger:hover {
    background: var(--bg-input);
}

.header-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    flex: 1;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-dim);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.header-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.header-user {
    font-size: 0.85rem;
    color: var(--text);
    font-weight: 600;
    padding: 4px 10px;
    background: var(--bg-input);
    border-radius: 6px;
    text-align: right;
}

/* Content */
.content {
    flex: 1;
    padding: 24px;
    min-width: 0;
}

/* Sidebar Backdrop (mobile) */
.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
}

.sidebar-backdrop.active {
    display: block;
}

/* Theme toggle - always visible */
.theme-toggle-fixed {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 1000;
}

.theme-toggle-fixed:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        width: 240px;
        height: auto;
        transition: transform 0.2s ease;
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .sidebar-collapsed .sidebar {
        width: 240px;
    }

    .header-hamburger {
        display: flex;
    }

    .content {
        padding: 16px;
        min-width: 0;
    }

    .sidebar-logo-text,
    .sidebar-item-text {
        opacity: 1;
        width: auto;
    }

    .sidebar-item-text {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    table th, table td {
        padding: 6px 8px;
    }

    .header-user {
        text-align: right;
        margin-left: auto;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}
body::before { display: none; }
body::after { display: none; }

#app { padding: 0; margin: 0; max-width: none; }

h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

h3 {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-dim);
    margin-bottom: 10px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 12px;
    transition: border-color 0.2s;
}
.card:hover {
    border-color: #3a3a3a;
}

.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 13px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}
.form-group select { cursor: pointer; }
.form-group select option { background: #1a1a1a; color: var(--text); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.15s;
    text-decoration: none;
}

.btn-primary {
    background: var(--green);
    color: #fff;
}
.btn-primary:hover { background: #388e3c; }

.btn-secondary {
    background: #2a2a2a;
    color: var(--text-dim);
}
.btn-secondary:hover { background: #333; color: var(--text); }

.btn-danger {
    background: var(--accent);
    color: #fff;
}
.btn-danger:hover { background: #c62828; }

.btn-sm { padding: 5px 10px; font-size: 0.78rem; border-radius: 6px; }

table { width: 100%; border-collapse: collapse; }
table th {
    padding: 10px 12px;
    text-align: left;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    background: #141414;
}
table td {
    padding: 9px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
    color: var(--text);
}
table tr:hover td { background: #1e1e1e; }

.alert {
    padding: 11px 14px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 0.88rem;
    font-weight: 500;
}
.alert-error {
    background: rgba(229, 57, 53, 0.1);
    border: 1px solid rgba(229, 57, 53, 0.25);
    color: #ef5350;
}
.alert-success {
    background: rgba(67, 160, 71, 0.1);
    border: 1px solid rgba(67, 160, 71, 0.25);
    color: #66bb6a;
}

.hidden { display: none !important; }

.flex-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.flex-between { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }

.admin-trigger {
    position: fixed;
    bottom: 20px; right: 20px;
    width: 42px; height: 42px;
    background: #1a1a1a;
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    opacity: 0.6;
    transition: all 0.2s;
    z-index: 100;
}
.admin-trigger:hover { opacity: 1; border-color: var(--accent); color: var(--accent); }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 14px;
    text-align: left;
    transition: border-color 0.2s;
    border-left: 3px solid var(--border);
}
.stat-card:nth-child(1) { border-left-color: var(--accent); }
.stat-card:nth-child(2) { border-left-color: var(--yellow); }
.stat-card:nth-child(3) { border-left-color: var(--green); }
.stat-card:nth-child(4) { border-left-color: var(--blue); }
.stat-card:nth-child(5) { border-left-color: var(--orange); }
.stat-card:nth-child(6) { border-left-color: var(--purple); }
.stat-card:hover { border-color: #3a3a3a; }
.stat-card .stat-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
}
.stat-card:nth-child(1) .stat-value { color: var(--accent); }
.stat-card:nth-child(2) .stat-value { color: var(--yellow); }
.stat-card:nth-child(3) .stat-value { color: var(--green); }
.stat-card:nth-child(4) .stat-value { color: var(--blue); }
.stat-card:nth-child(5) .stat-value { color: var(--orange); }
.stat-card:nth-child(6) .stat-value { color: var(--purple); }
.stat-card .stat-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-dim);
    margin-top: 3px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.segment-row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 6px;
    padding: 7px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    transition: border-color 0.2s;
}
.segment-row:hover { border-color: #3a3a3a; }
.segment-row select, .segment-row input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-family: 'Inter', sans-serif;
    font-size: 0.84rem;
    padding: 2px 4px;
}
.segment-row select:focus, .segment-row input:focus { outline: none; }
.segment-row span { color: var(--text-dim); flex: none; }
.segment-row .segment-km {
    width: 80px;
    flex: none;
    color: var(--yellow);
    font-weight: 700;
    text-align: right;
}
.seg-km { color: var(--yellow) !important; }

input[type="month"],
input[type="date"] {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: 'Inter', sans-serif;
    padding: 9px 13px;
    font-size: 0.88rem;
    color-scheme: dark;
}
input[type="month"]:focus,
input[type="date"]:focus {
    outline: none;
    border-color: var(--accent);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #ef5350; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #444; }

.icon { font-size: 1.1em; vertical-align: -0.1em; }

iconify-icon { display: inline-block; vertical-align: -0.125em; line-height: 1; }

.balance-bar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 10px 14px;
    background: #1a1a1a;
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    overflow-x: auto;
}
.balance-bar span { color: var(--text-dim); white-space: nowrap; font-size: 0.8rem; }
.balance-bar b { color: #fff; font-weight: 700; }
.balance-bar .btn { flex-shrink: 0; }

.sticky-top {
    position: sticky;
    top: 56px;
    z-index: 50;
    background: var(--bg);
    padding-bottom: 4px;
}

.day-block { margin-bottom: 6px !important; }
.day-num { font-size: 1rem; font-weight: 800; color: #fff; min-width: 38px; }
.day-km { font-size: 0.88rem; font-weight: 700; min-width: 60px; text-align: right; color: var(--yellow); }
.day-date { font-size: 0.86rem !important; padding: 4px 8px !important; background: transparent !important; border: 1px solid var(--border) !important; color: var(--text) !important; border-radius: 6px !important; }
.day-segs { border-top: 1px solid var(--border); padding-top: 8px; }

.saved-block { margin-bottom: 6px !important; }
.saved-block:hover { border-color: rgba(67, 160, 71, 0.4) !important; }

.new-block { margin-bottom: 10px !important; }

.seg-a, .seg-b {
    background: var(--bg-input) !important;
    border: 1px solid var(--border) !important;
    border-radius: 6px !important;
    color: var(--text) !important;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .stat-card {
        padding: 12px;
    }

    .stat-card .stat-value {
        font-size: 1.1rem;
    }

    .balance-bar {
        flex-wrap: wrap;
        gap: 8px;
        padding: 8px 10px;
    }

    .balance-bar span {
        font-size: 0.75rem;
    }

    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table th, table td {
        padding: 4px 6px;
        font-size: 0.8rem;
    }

    table th:nth-child(3), table td:nth-child(3) {
        padding: 4px;
        width: 38px;
        white-space: nowrap;
    }

    .segment-row {
        flex-wrap: wrap;
        gap: 6px;
    }

    .segment-row select {
        width: 100% !important;
    }

    .day-block .flex-between {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .form-group input,
    .form-group select {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .header {
        padding: 0 10px;
        gap: 8px;
    }

    .header-title {
        font-size: 0.95rem;
    }

    .header-user {
        font-size: 0.75rem;
        padding: 3px 6px;
    }
}