:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --danger: #ef4444;
    --success: #10b981;
    --border: #334155;
}

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

html {
    overflow-x: hidden;
    /* Prevent horizontal scroll */
    width: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    /* Prevent horizontal scroll */
    width: 100%;
    max-width: 100vw;
    /* Never exceed viewport width */
}

/* Prevent all elements from exceeding viewport */
* {
    max-width: 100%;
}

/* Header - Responsive */
.header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.logo h1 {
    font-size: 1.25rem;
}

/* Navigation - Mobile First */
.nav {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
    width: 100%;
    justify-content: center;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
    font-size: 0.875rem;
    white-space: nowrap;
}

.nav-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-btn.active {
    color: var(--text-primary);
    background: var(--primary);
}

/* Container - Responsive */
.container {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 1rem;
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
}

.page {
    display: none;
    width: 100%;
    overflow-x: hidden;
}

.page.active {
    display: block;
}

/* Prevent images from overflowing */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

.section-title {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Grid - Responsive */
.grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
    /* Always 1 column on mobile */
}

.grid-2 {
    grid-template-columns: 1fr;
    /* 1 column on mobile */
}

.grid-3 {
    grid-template-columns: 1fr;
    /* 1 column on mobile */
}

.grid-4 {
    grid-template-columns: 1fr;
    /* 1 column on mobile */
}

/* Cards - Mobile Optimized */
.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.stat-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    word-break: break-word;
    overflow-wrap: break-word;
    line-height: 1.2;
}

.stat-label {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

/* Buttons - Touch Friendly */
.btn {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    font-size: 0.875rem;
    min-height: 44px;
    /* Touch target size */
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

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

.btn-danger:hover {
    background: #dc2626;
}

/* Table - Responsive */
.table {
    width: 100%;
    border-collapse: collapse;
}

/* Mobile: Simple layout - name + buttons only */
.table thead {
    display: none;
}

.table tr {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border);
    gap: 1rem;
}

.table td {
    display: none;
    padding: 0;
    border: none;
}

/* Show only first cell (name) and last cell (actions) */
.table td:first-child {
    display: block;
    flex: 1;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.table td:last-child {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* Touch-friendly buttons */
.table td:last-child .btn {
    min-width: 70px;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
}

/* Flex Utilities - Responsive */
.flex {
    display: flex;
    flex-wrap: wrap;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

.gap-2 {
    gap: 0.5rem;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

/* Modal - Mobile Optimized */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    z-index: 1000;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.5rem;
    -webkit-overflow-scrolling: touch;
}

.modal-content {
    background: var(--bg-card);
    padding: 1rem;
    border-radius: 12px;
    width: 100%;
    max-width: min(500px, calc(100vw - 1rem));
    border: 1px solid var(--border);
    margin: 0.5rem auto;
    max-height: calc(100vh - 1rem);
    overflow-y: auto;
    overflow-x: hidden;
    box-sizing: border-box;
}


/* Form - Touch Friendly */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.form-input,
.form-select {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
    min-height: 44px;
    /* Touch target */
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--primary);
    color: white;
}

.badge-success {
    background: var(--success);
}

.badge-secondary {
    background: var(--text-secondary);
}

/* Text Utilities */
.text-secondary {
    color: var(--text-secondary);
}

/* ========================================
   TABLET (768px and up)
   ======================================== */
@media (min-width: 768px) {
    .header-content {
        flex-wrap: nowrap;
    }

    .nav {
        width: auto;
        gap: 0.5rem;
    }

    .nav-btn {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }

    .container {
        margin: 2rem auto;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .grid {
        gap: 1.5rem;
    }

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

    .card {
        padding: 1.5rem;
    }

    .stat-value {
        font-size: 2.5rem;
    }

    .stat-label {
        font-size: 1rem;
    }

    /* Table - Desktop View */
    .table {
        display: table;
    }

    .table thead {
        display: table-header-group;
    }

    .table tr {
        display: table-row;
        margin-bottom: 0;
        background: transparent;
        border-radius: 0;
        padding: 0;
        border: none;
    }

    .table td {
        display: table-cell;
        padding: 1rem;
        border-bottom: 1px solid var(--border);
    }

    .table td:before {
        display: none;
    }

    .table th {
        color: var(--text-secondary);
        font-weight: 500;
        padding: 1rem;
        text-align: left;
        border-bottom: 1px solid var(--border);
    }

    .modal {
        align-items: center;
        padding: 2rem;
    }

    .modal-content {
        padding: 2rem;
    }
}

/* ========================================
   DESKTOP (1024px and up)
   ======================================== */
@media (min-width: 1024px) {
    .logo h1 {
        font-size: 1.5rem;
    }

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

/* ========================================
   LARGE DESKTOP (1280px and up)
   ======================================== */
@media (min-width: 1280px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ========================================
   GUILD WAR MEMBER CARDS
   ======================================== */
.gw-member-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.25rem;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.gw-member-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--success));
    opacity: 0;
    transition: opacity 0.3s;
}

.gw-member-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
    border-color: var(--primary);
}

.gw-member-card:hover::before {
    opacity: 1;
}

.gw-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.gw-member-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.gw-stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.gw-stat-box {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.gw-stat-box:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.gw-stat-offense {
    border-left: 3px solid var(--danger);
}

.gw-stat-defense {
    border-left: 3px solid var(--success);
}

.gw-stat-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.gw-stat-icon {
    font-size: 1.25rem;
}

.gw-stat-values {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 0.75rem;
}

.gw-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}

.gw-stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.gw-stat-number.success {
    color: var(--success);
}

.gw-stat-number.danger {
    color: var(--danger);
}

.gw-stat-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.gw-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Mobile optimizations */
@media (max-width: 767px) {
    .gw-member-name {
        font-size: 1.25rem;
    }

    .gw-stat-number {
        font-size: 1.75rem;
    }

    .gw-stat-box {
        padding: 0.875rem;
    }
}

/* Tablet and up */
@media (min-width: 768px) {
    .gw-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gw-stat-values {
        gap: 1rem;
    }
}

/* ========================================
   ADVENT EXPEDITION - MOBILE TABLE
   ======================================== */
@media (max-width: 767px) {

    /* Custom layout for Advent Expedition member table */
    #advent-expedition .table tr {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: 0.5rem 1rem;
        padding: 1rem;
        align-items: start;
    }

    #advent-expedition .table td {
        display: block;
        padding: 0;
    }

    /* Row 1, Col 1: Member Name */
    #advent-expedition .table td:nth-child(1) {
        grid-column: 1;
        grid-row: 1;
        font-weight: 600;
        font-size: 1rem;
        color: var(--text-primary);
    }

    /* Row 1, Col 2: Attack Count */
    #advent-expedition .table td:nth-child(3) {
        grid-column: 2;
        grid-row: 1;
        text-align: right;
        font-weight: 700;
        font-size: 1.125rem;
        color: var(--primary);
    }

    /* Row 2: Total Score (full width) */
    #advent-expedition .table td:nth-child(2) {
        grid-column: 1 / -1;
        grid-row: 2;
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--success);
        padding-top: 0.25rem;
    }

    /* Hide date column */
    #advent-expedition .table td:nth-child(4) {
        display: none;
    }

    /* Hide action buttons for Advent on mobile */
    #advent-expedition .table td:last-child {
        display: none;
    }

    /* Smaller stat values on mobile */
    #advent-expedition .stat-value {
        font-size: 1.5rem;
    }

    #advent-expedition .stat-card {
        padding: 1rem;
    }
}