:root {
    --bg-primary:   #130d08;
    --bg-secondary: #1c1208;
    --bg-card:      #251910;
    --bg-hover:     #321f10;
    --text-primary: #f0dcc0;
    --text-secondary: #b89060;
    --text-muted:   #7a5535;
    --border:       #4a2f18;
    --copper:       #b87333;
    --brass:        #c8a435;
    --coal-color:   #888898;
    --iron-color:   #aab0bc;
    --gold-color:   #d4a017;
    --steam-color:  #89c4d4;
    --gold:         #d4a017;
    --success:      #4a8c5c;
    --danger:       #b03030;
    --warning:      #c8a435;
    --info:         #4a7a8c;
    --radius: 6px;
    --shadow: 0 4px 12px rgba(0,0,0,0.5);
}

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

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Landing */
.landing {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background:
        radial-gradient(ellipse at top, #2a1a08 0%, #130d08 60%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 40px,
            rgba(184,115,51,0.03) 40px,
            rgba(184,115,51,0.03) 41px
        );
}

.landing-logo { text-align: center; margin-bottom: 2rem; }

.landing h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, #b87333, #d4a017, #cd7f32);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
    margin-bottom: 0.5rem;
}

.landing .subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    font-style: italic;
}

.auth-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow), 0 0 40px rgba(184,115,51,0.1);
}

.auth-tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border);
}

.auth-tab {
    flex: 1;
    padding: 0.75rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    letter-spacing: 0.03em;
}

.auth-tab.active {
    color: var(--brass);
    border-bottom-color: var(--brass);
}

.auth-form { display: none; }
.auth-form.active { display: block; }

.form-group { margin-bottom: 1rem; }

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 0.65rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--copper);
    box-shadow: 0 0 0 2px rgba(184,115,51,0.15);
}

/* Race selection */
.race-select {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.race-option {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
    background: var(--bg-secondary);
}

.race-option:hover { border-color: var(--copper); }

.race-option.selected {
    border-color: var(--brass);
    background: var(--bg-hover);
    box-shadow: 0 0 8px rgba(200,164,53,0.2);
}

.race-icon {
    font-size: 1.4rem;
    display: block;
    margin-bottom: 0.2rem;
}

.race-name {
    font-weight: 700;
    font-size: 0.85rem;
    display: block;
}

.race-bonus {
    font-size: 0.72rem;
    color: var(--text-muted);
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: inherit;
    font-weight: 600;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #b87333, #c8a435);
    color: #130d08;
    width: 100%;
    margin-top: 0.5rem;
    border-color: var(--copper);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #c8a435, #b87333);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(184,115,51,0.3);
}

.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.82rem; }
.btn-danger { background: var(--danger); color: white; border-color: #8b2020; }
.btn-danger:hover { background: #c03535; }
.btn-success { background: var(--success); color: white; border-color: #3a7040; }
.btn-info    { background: var(--info);    color: white; }

.error-msg {
    color: #e05050;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    min-height: 1.2rem;
    font-style: italic;
}

/* Game Layout */
.game-layout {
    display: none;
    grid-template-columns: 255px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 0;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
}

.sidebar-header h2 {
    font-size: 1.1rem;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--copper), var(--brass));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-header .realm-info {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.resources-bar {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: rgba(0,0,0,0.2);
}

.resource {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    padding: 0.15rem 0;
}

.resource-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
}

.resource-coal  { color: var(--coal-color); }
.resource-iron  { color: var(--iron-color); }
.resource-gold  { color: var(--gold-color); }
.resource-steam { color: var(--steam-color); }

.nav-menu {
    flex: 1;
    padding: 0.5rem 0;
    list-style: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.15s;
    font-size: 0.88rem;
    letter-spacing: 0.02em;
    position: relative;
}

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

.nav-item.active {
    background: var(--bg-hover);
    color: var(--brass);
    border-right: 3px solid var(--brass);
}

.nav-badge {
    position: absolute;
    right: 1rem;
    background: var(--danger);
    color: white;
    font-size: 0.68rem;
    padding: 0.1rem 0.4rem;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
    font-style: normal;
}

.sidebar-footer {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border);
}

.tick-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 0.5rem;
    font-style: italic;
}

.main-content {
    padding: 1.75rem 2rem;
    overflow-y: auto;
    max-height: 100vh;
    background: var(--bg-primary);
}

.page { display: none; }
.page.active { display: block; }

.page-title {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--brass);
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
    letter-spacing: 0.04em;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.85rem;
}

/* Grids */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }

/* Item cards */
.item-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    transition: all 0.2s;
}

.item-card:hover {
    border-color: var(--copper);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(184,115,51,0.15);
}

.item-card .item-name {
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.item-card .item-stats {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.65rem;
}

.item-card .item-cost {
    display: flex;
    gap: 0.5rem;
    font-size: 0.78rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.building-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.status-building {
    background: rgba(200,164,53,0.15);
    color: var(--brass);
    border: 1px solid rgba(200,164,53,0.3);
}

.status-ready {
    background: rgba(74,140,92,0.15);
    color: var(--success);
    border: 1px solid rgba(74,140,92,0.3);
}

/* Overview stats */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.3rem;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Production summary */
.production-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.prod-item {
    text-align: center;
    padding: 0.6rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.prod-value {
    font-size: 1.1rem;
    font-weight: 700;
}

.prod-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Player ranking */
.player-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

.player-row:hover { background: var(--bg-hover); }

.player-rank {
    font-size: 1.1rem;
    font-weight: 700;
    width: 2.5rem;
    text-align: center;
    color: var(--text-muted);
}

.player-info { flex: 1; }

.player-name {
    font-weight: 700;
    font-size: 0.9rem;
}

.player-realm {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-style: italic;
}

.player-race {
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.72rem;
    font-weight: 700;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
}

.player-score {
    font-weight: 700;
    color: var(--brass);
    min-width: 60px;
    text-align: right;
}

/* Messages */
.message-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
}

.message-item:hover { background: var(--bg-hover); }
.message-item.unread { border-left: 3px solid var(--copper); }

.message-title { font-weight: 700; font-size: 0.9rem; }
.message-time  { font-size: 0.72rem; color: var(--text-muted); }

.message-body {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
    font-style: italic;
}

/* Attacks */
.attack-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--border);
}

.attack-status {
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 700;
}

.attack-traveling { background: rgba(74,122,140,0.2); color: var(--info); }
.attack-won       { background: rgba(74,140,92,0.2);  color: var(--success); }
.attack-lost      { background: rgba(176,48,48,0.2);  color: var(--danger); }

/* Unit count input */
.unit-count-input {
    width: 70px;
    padding: 0.3rem 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: inherit;
    text-align: center;
}

.unit-count-input:focus {
    outline: none;
    border-color: var(--copper);
}

/* Toasts */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    padding: 0.7rem 1.2rem;
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: inherit;
    box-shadow: var(--shadow);
    animation: slideIn 0.3s ease;
    max-width: 340px;
    border: 1px solid;
}

.toast-success { background: rgba(74,140,92,0.9);  border-color: var(--success); }
.toast-error   { background: rgba(176,48,48,0.9);  border-color: var(--danger); }
.toast-info    { background: rgba(74,122,140,0.9); border-color: var(--info); }

@keyframes slideIn {
    from { transform: translateX(110%); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 500;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0,0,0,0.6);
}

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

    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        width: 255px;
        z-index: 100;
        transition: left 0.3s;
        height: 100vh;
    }

    .sidebar.open { left: 0; }

    .mobile-header {
        display: flex !important;
        align-items: center;
        gap: 1rem;
        padding: 0.75rem 1rem;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
    }

    .hamburger {
        background: none;
        border: none;
        color: var(--brass);
        font-size: 1.5rem;
        cursor: pointer;
    }

    .mobile-title { color: var(--brass); font-weight: 700; letter-spacing: 0.05em; }

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

    .main-content { padding: 1rem; }
}

.mobile-header { display: none; }

/* Scrollbar */
::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--copper); }

/* Spinner */
.spinner {
    display: inline-block;
    width: 22px; height: 22px;
    border: 2px solid var(--border);
    border-top-color: var(--copper);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 1rem auto;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Logout button */
.logout-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.45rem 1rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.82rem;
    font-family: inherit;
    width: 100%;
    transition: all 0.2s;
    letter-spacing: 0.03em;
}

.logout-btn:hover {
    border-color: var(--danger);
    color: var(--danger);
}

/* Incoming attack warning */
.attack-warning {
    border-color: var(--danger) !important;
    box-shadow: 0 0 12px rgba(176,48,48,0.3);
}