/**
 * Team Building Platform - Modern Dark Theme
 * 모던 다크 테마 디자인
 */

:root {
    /* Dark Theme Colors */
    --bg-primary: #0f1419;
    --bg-secondary: #16181d;
    --bg-tertiary: #1e2129;
    --bg-hover: #252930;

    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;

    --border-color: #2d3139;
    --border-light: #3d424a;

    /* Brand Colors */
    --primary-color: #5b7fff;
    --primary-hover: #4a6eee;
    --primary-light: rgba(91, 127, 255, 0.1);

    --success-color: #00d68f;
    --warning-color: #ffaa00;
    --danger-color: #ff3d71;
    --info-color: #0095ff;

    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-bg: #16181d;
    --sidebar-hover: #1e2129;
    --sidebar-active: #252930;

    /* Card */
    --card-bg: #16181d;
    --card-shadow: rgba(0, 0, 0, 0.5);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

body {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary) !important;
    font-weight: 600;
    margin-bottom: 1rem;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p, span, div {
    color: var(--text-secondary);
}

.text-muted {
    color: var(--text-muted) !important;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-hover);
}

/* ================== Layout ================== */

.page-wrapper {
    display: flex;
    min-height: 100vh;
    background-color: var(--bg-primary);
}

/* ================== Sidebar ================== */

.sidebar-wrapper {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.app-brand {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--sidebar-bg);
}

.app-brand a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.app-brand i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

/* Sidebar Profile */
.sidebar-user-profile {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--primary-light), transparent);
}

.profile-avatar {
    width: 64px;
    height: 64px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.profile-avatar i {
    font-size: 2.5rem;
    color: white;
}

.profile-name {
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 1rem;
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
}

.sidebar-user-profile small {
    color: var(--text-muted) !important;
    font-size: 0.875rem;
}

/* Sidebar Menu */
.sidebarMenuScroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem 0;
}

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

.sidebar-menu li {
    margin: 0.25rem 0.75rem;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.875rem 1rem;
    color: var(--text-secondary) !important;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    position: relative;
}

.sidebar-menu li a i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.sidebar-menu li a:hover {
    background-color: var(--sidebar-hover);
    color: var(--text-primary) !important;
    transform: translateX(2px);
}

.sidebar-menu li.active a,
.sidebar-menu li.current-page a {
    background: linear-gradient(90deg, var(--primary-light), transparent);
    color: var(--primary-color) !important;
    border-left: 3px solid var(--primary-color);
    padding-left: calc(1rem - 3px);
}

.sidebar-menu li.active a i,
.sidebar-menu li.current-page a i {
    color: var(--primary-color);
}

/* ================== Main Container ================== */

.main-container {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--bg-primary);
}

/* App Header */
.app-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.app-header .btn-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.app-header .btn-link:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.wallet-address {
    background-color: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 0.875rem;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

/* App Body */
.app-body {
    flex: 1;
    padding: 2rem 0;
    background-color: var(--bg-primary);
}

.app-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    margin-top: auto;
}

/* ================== Cards ================== */

.card {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px !important;
    box-shadow: var(--shadow-sm) !important;
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md) !important;
    transform: translateY(-2px);
}

.card-header {
    background-color: var(--bg-tertiary) !important;
    border-bottom: 1px solid var(--border-color) !important;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
    color: var(--text-secondary);
}

.card-title {
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.card-footer {
    background-color: var(--bg-tertiary) !important;
    border-top: 1px solid var(--border-color) !important;
    padding: 1rem 1.5rem;
}

/* ================== Forms ================== */

.form-control,
.form-select,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
textarea,
select {
    background-color: var(--bg-tertiary) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: 8px;
    padding: 0.625rem 1rem;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus,
input:focus,
textarea:focus,
select:focus {
    background-color: var(--bg-tertiary) !important;
    border-color: var(--primary-color) !important;
    color: var(--text-primary) !important;
    box-shadow: 0 0 0 3px var(--primary-light) !important;
    outline: none;
}

.form-control::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--text-muted) !important;
    opacity: 0.7;
}

.form-label {
    color: var(--text-primary) !important;
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-check-input {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* ================== Buttons ================== */

.btn {
    border: none;
    border-radius: 8px;
    padding: 0.625rem 1.25rem;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover)) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(91, 127, 255, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 16px rgba(91, 127, 255, 0.4);
}

.btn-success {
    background-color: var(--success-color) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(0, 214, 143, 0.3);
}

.btn-danger {
    background-color: var(--danger-color) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(255, 61, 113, 0.3);
}

.btn-warning {
    background-color: var(--warning-color) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(255, 170, 0, 0.3);
}

.btn-info {
    background-color: var(--info-color) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(0, 149, 255, 0.3);
}

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

.btn-outline-primary {
    border: 2px solid var(--primary-color) !important;
    color: var(--primary-color) !important;
    background-color: transparent !important;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color) !important;
    color: white !important;
}

.btn-outline-secondary {
    border: 2px solid var(--border-color) !important;
    color: var(--text-secondary) !important;
    background-color: transparent !important;
}

.btn-outline-secondary:hover {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

.btn-sm {
    padding: 0.4rem 0.875rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.05rem;
}

/* ================== Tables ================== */

.table {
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
    margin-bottom: 0;
}

.table thead th {
    background-color: var(--bg-tertiary) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1rem;
}

.table tbody tr {
    background-color: var(--card-bg) !important;
    border-color: var(--border-color) !important;
    transition: all 0.2s ease;
}

.table tbody tr td {
    background-color: var(--card-bg) !important;
}

.table tbody tr:hover {
    background-color: var(--bg-hover) !important;
    transform: scale(1.01);
}

.table tbody tr:hover td {
    background-color: var(--bg-hover) !important;
}

.table td {
    border-color: var(--border-color) !important;
    color: var(--text-secondary) !important;
    padding: 1rem;
    vertical-align: middle;
    background-color: transparent !important;
}

.table tbody td {
    background-color: transparent !important;
}

.table-responsive {
    border-radius: 12px;
    overflow: hidden;
}

/* ================== Badges ================== */

.badge {
    font-weight: 500;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.bg-success {
    background-color: var(--success-color) !important;
}

.bg-danger {
    background-color: var(--danger-color) !important;
}

.bg-warning {
    background-color: var(--warning-color) !important;
}

.bg-info {
    background-color: var(--info-color) !important;
}

.bg-secondary {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-secondary) !important;
}

.bg-dark {
    background-color: #495057 !important;
}

/* ================== Dropdowns ================== */

.dropdown-menu {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px;
    box-shadow: var(--shadow-lg) !important;
    padding: 0.5rem;
    min-width: 200px;
}

.dropdown-item {
    color: var(--text-secondary) !important;
    padding: 0.625rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

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

.dropdown-header {
    color: var(--text-muted) !important;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.5rem 1rem;
}

.dropdown-divider {
    border-color: var(--border-color) !important;
    margin: 0.5rem 0;
}

.dropdown-item-text {
    color: var(--text-primary) !important;
    padding: 0.5rem 1rem;
    font-weight: 600;
}

/* ================== Navigation Tabs ================== */

.nav-tabs {
    border-bottom: 2px solid var(--border-color) !important;
    gap: 0.5rem;
}

.nav-tabs .nav-link {
    color: var(--text-secondary) !important;
    border: none !important;
    padding: 0.875rem 1.5rem;
    border-radius: 8px 8px 0 0;
    font-weight: 500;
    transition: all 0.2s ease;
    background-color: transparent;
}

.nav-tabs .nav-link:hover {
    color: var(--text-primary) !important;
    background-color: var(--bg-hover);
}

.nav-tabs .nav-link.active {
    background-color: var(--bg-tertiary) !important;
    color: var(--primary-color) !important;
    border-bottom: 3px solid var(--primary-color) !important;
}

/* ================== Alerts ================== */

.alert {
    border: none;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    border-left: 4px solid;
    font-weight: 500;
}

.alert-primary {
    background-color: rgba(91, 127, 255, 0.1) !important;
    color: var(--primary-color) !important;
    border-left-color: var(--primary-color);
}

.alert-success {
    background-color: rgba(0, 214, 143, 0.1) !important;
    color: var(--success-color) !important;
    border-left-color: var(--success-color);
}

.alert-danger {
    background-color: rgba(255, 61, 113, 0.1) !important;
    color: var(--danger-color) !important;
    border-left-color: var(--danger-color);
}

.alert-warning {
    background-color: rgba(255, 170, 0, 0.1) !important;
    color: var(--warning-color) !important;
    border-left-color: var(--warning-color);
}

.alert-info {
    background-color: rgba(0, 149, 255, 0.1) !important;
    color: var(--info-color) !important;
    border-left-color: var(--info-color);
}

/* ================== Modals ================== */

.modal-content {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    background-color: var(--bg-tertiary) !important;
    border-bottom: 1px solid var(--border-color) !important;
    border-radius: 16px 16px 0 0;
    padding: 1.25rem 1.5rem;
}

.modal-title {
    color: var(--text-primary) !important;
    font-weight: 600;
}

.modal-body {
    color: var(--text-secondary);
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border-color) !important;
    padding: 1rem 1.5rem;
}

.btn-close {
    filter: invert(1);
    opacity: 0.6;
}

.btn-close:hover {
    opacity: 1;
}

/* ================== Scrollbar ================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

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

/* ================== Responsive ================== */

@media (max-width: 991px) {
    .sidebar-wrapper {
        transform: translateX(-100%);
    }

    .sidebar-wrapper.show {
        transform: translateX(0);
    }

    .main-container {
        margin-left: 0;
    }
}

@media (max-width: 576px) {
    .app-body {
        padding: 1rem 0;
    }

    .card-body {
        padding: 1rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}