/**
 * Smart Solve Token (SST 2.0) - Components Stylesheet
 * Modals, Toasts, 3-Level Referral Tree, Stat Cards, Leaderboard Table, Stepper
 */

/* ==========================================================
   STAT CARDS & METRIC WIDGETS
   ========================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--grad-primary);
    opacity: 0.8;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-card-hover);
    box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 210, 255, 0.15);
}

.stat-card.purple::before {
    background: var(--grad-secondary);
}

.stat-card.gold::before {
    background: var(--grad-gold);
}

.stat-card.green::before {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.stat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.stat-title {
    font-size: 0.825rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.stat-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: rgba(var(--primary-blue-rgb), 0.1);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.stat-card.purple .stat-icon {
    background: rgba(var(--neon-purple-rgb), 0.1);
    color: var(--neon-purple);
}

.stat-card.gold .stat-icon {
    background: rgba(var(--gold-accent-rgb), 0.1);
    color: var(--gold-accent);
}

.stat-card.green .stat-icon {
    background: rgba(var(--emerald-green-rgb), 0.1);
    color: var(--emerald-green);
}

.stat-value {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-main);
    line-height: 1.2;
    margin-bottom: 0.35rem;
}

.stat-meta {
    font-size: 0.785rem;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* ==========================================================
   3-LEVEL REFERRAL TREE VISUALIZATION
   ========================================================== */
.referral-tree-container {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    padding: 2.5rem 1.5rem;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.tree-canvas {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.tree-node {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1.25rem 2rem;
    text-align: center;
    position: relative;
    z-index: 2;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    transition: all var(--transition-normal);
}

.tree-node:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 0 25px rgba(0, 210, 255, 0.25);
    transform: scale(1.02);
}

.tree-node.root-node {
    border-color: rgba(var(--primary-blue-rgb), 0.6);
    background: linear-gradient(135deg, rgba(0, 210, 255, 0.15) 0%, rgba(13, 21, 44, 0.95) 100%);
    box-shadow: 0 0 30px rgba(0, 210, 255, 0.2);
    width: 100%;
    max-width: 320px;
    box-sizing: border-box;
}

.tree-node-title {
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tree-node-reward {
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--primary-blue);
    margin-top: 0.35rem;
}

.tree-node-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Connecting Lines */
.tree-connector-vertical {
    width: 2px;
    height: 45px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, rgba(0, 210, 255, 0.3) 100%);
    position: relative;
}

.tree-level-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    width: 100%;
    position: relative;
}

.tree-level-card {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.25rem;
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
}

.tree-level-card:hover {
    border-color: var(--border-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 25px -8px rgba(0, 0, 0, 0.6);
}

.tree-level-card.level-1 {
    border-top: 3px solid var(--primary-blue);
}

.tree-level-card.level-2 {
    border-top: 3px solid var(--neon-purple);
}

.tree-level-card.level-3 {
    border-top: 3px solid var(--gold-accent);
}

.level-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.level-1 .level-tag {
    background: rgba(var(--primary-blue-rgb), 0.15);
    color: var(--primary-blue);
}

.level-2 .level-tag {
    background: rgba(var(--neon-purple-rgb), 0.15);
    color: var(--neon-purple);
}

.level-3 .level-tag {
    background: rgba(var(--gold-accent-rgb), 0.15);
    color: var(--gold-accent);
}

.level-amount {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--text-main);
    line-height: 1.2;
}

.level-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

/* ==========================================================
   MODALS SYSTEM
   ========================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    background: rgba(3, 6, 15, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-box {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-modal);
    position: relative;
    transform: scale(0.92) translateY(15px);
    transition: transform var(--transition-normal);
    overflow: hidden;
}

.modal-overlay.active .modal-box {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 1.75rem;
    border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
}

.modal-body {
    padding: 1.75rem;
}

.modal-footer {
    padding: 1.25rem 1.75rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    background: rgba(0, 0, 0, 0.15);
}

/* Wallet Options in Modal */
.wallet-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.wallet-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.wallet-option:hover {
    background: rgba(var(--primary-blue-rgb), 0.08);
    border-color: var(--primary-blue);
    transform: translateX(4px);
}

.wallet-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.wallet-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.wallet-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
}

.wallet-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==========================================================
   TOAST NOTIFICATIONS
   ========================================================== */
#toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 2000;
    pointer-events: none;
    max-width: 420px;
    width: calc(100vw - 3rem);
}

.toast {
    pointer-events: auto;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-card);
    border-left: 4px solid var(--primary-blue);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-normal);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.toast-success {
    border-left-color: var(--emerald-green);
}
.toast.toast-error {
    border-left-color: var(--crimson-red);
}
.toast.toast-warning {
    border-left-color: var(--gold-accent);
}
.toast.toast-info {
    border-left-color: var(--primary-blue);
}

.toast-icon {
    font-size: 1.25rem;
    line-height: 1;
    margin-top: 0.1rem;
}

.toast-success .toast-icon { color: var(--emerald-green); }
.toast-error .toast-icon { color: var(--crimson-red); }
.toast-warning .toast-icon { color: var(--gold-accent); }
.toast-info .toast-icon { color: var(--primary-blue); }

.toast-content {
    flex: 1;
}

.toast-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.2rem;
}

.toast-message {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
    word-break: break-word;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.2rem;
}

.toast-close:hover {
    color: var(--text-main);
}

/* ==========================================================
   LEADERBOARD / RANKING TABLE
   ========================================================== */
.table-wrapper {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-card);
    background: var(--bg-card);
    backdrop-filter: blur(14px);
}

.web3-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.web3-table th {
    background: rgba(0, 0, 0, 0.4);
    color: var(--primary-blue);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid var(--border-card);
}

.web3-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
    color: var(--text-main);
    vertical-align: middle;
}

.web3-table tbody tr {
    transition: background-color var(--transition-fast);
}

.web3-table tbody tr:hover {
    background: rgba(var(--primary-blue-rgb), 0.04);
}

.web3-table tbody tr.current-user-row {
    background: rgba(var(--primary-blue-rgb), 0.12);
    border-left: 3px solid var(--primary-blue);
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-weight: 900;
    font-size: 0.85rem;
}

.rank-badge.rank-1 {
    background: linear-gradient(135deg, #ffd700 0%, #b8860b 100%);
    color: #000;
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.5);
}

.rank-badge.rank-2 {
    background: linear-gradient(135deg, #e2e8f0 0%, #94a3b8 100%);
    color: #000;
    box-shadow: 0 0 12px rgba(226, 232, 240, 0.5);
}

.rank-badge.rank-3 {
    background: linear-gradient(135deg, #cd7f32 0%, #8b4513 100%);
    color: #fff;
    box-shadow: 0 0 12px rgba(205, 127, 50, 0.5);
}

.rank-badge.rank-default {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-muted);
}

.address-cell {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.copy-icon-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 0.25rem;
    transition: color var(--transition-fast);
}

.copy-icon-btn:hover {
    color: var(--primary-blue);
}

/* Pagination */
.pagination-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-subtle);
    background: rgba(0, 0, 0, 0.2);
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.pagination-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ==========================================================
   STEPPER WIZARD (FOR REGISTRATION)
   ========================================================== */
.stepper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.stepper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 10%;
    width: 80%;
    height: 2px;
    background: var(--border-subtle);
    z-index: 1;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card-solid);
    border: 2px solid var(--border-subtle);
    color: var(--text-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}

.step-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-dim);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.step-item.active .step-circle {
    background: var(--grad-primary);
    border-color: var(--primary-blue);
    color: var(--text-inverse);
    box-shadow: var(--glow-blue);
}

.step-item.active .step-label {
    color: var(--primary-blue);
}

.step-item.completed .step-circle {
    background: var(--emerald-green);
    border-color: var(--emerald-green);
    color: #fff;
}

.step-item.completed .step-label {
    color: var(--emerald-green);
}

/* ==========================================================
   SKELETONS & SPINNERS
   ========================================================== */
.skeleton {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.04) 25%, rgba(255, 255, 255, 0.08) 50%, rgba(255, 255, 255, 0.04) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
    display: inline-block;
}

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

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

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