/* ========================================
   Gridcoin RPC UI - Main Stylesheet
   Premium Dark Theme with Glass Effects
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary-hue: 220;
    --primary: hsl(var(--primary-hue), 80%, 55%);
    --primary-dark: hsl(var(--primary-hue), 80%, 40%);
    --primary-light: hsl(var(--primary-hue), 80%, 70%);
    
    --success: hsl(145, 65%, 45%);
    --warning: hsl(35, 90%, 55%);
    --danger: hsl(0, 75%, 55%);
    --info: hsl(190, 75%, 50%);
    
    /* Backgrounds */
    --bg-dark: hsl(225, 25%, 8%);
    --bg-card: hsl(225, 20%, 12%);
    --bg-elevated: hsl(225, 20%, 15%);
    --bg-hover: hsl(225, 20%, 18%);
    
    /* Text */
    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(220, 10%, 65%);
    --text-muted: hsl(220, 10%, 45%);
    
    /* Borders */
    --border-color: hsla(220, 20%, 30%, 0.5);
    --border-light: hsla(220, 20%, 40%, 0.3);
    
    /* Glassmorphism */
    --glass-bg: hsla(225, 20%, 15%, 0.8);
    --glass-border: hsla(220, 30%, 50%, 0.2);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, hsl(220, 80%, 55%), hsl(260, 80%, 55%));
    --gradient-success: linear-gradient(135deg, hsl(145, 65%, 45%), hsl(165, 65%, 45%));
    --gradient-info: linear-gradient(135deg, hsl(190, 75%, 50%), hsl(210, 75%, 50%));
    --gradient-warning: linear-gradient(135deg, hsl(35, 90%, 55%), hsl(25, 90%, 60%));
    
    /* Shadows */
    --shadow-sm: 0 2px 8px hsla(0, 0%, 0%, 0.3);
    --shadow-md: 0 4px 20px hsla(0, 0%, 0%, 0.4);
    --shadow-lg: 0 8px 40px hsla(0, 0%, 0%, 0.5);
    --shadow-glow: 0 0 30px hsla(var(--primary-hue), 80%, 55%, 0.3);
    
    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
    --topbar-height: 70px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 20%, hsla(260, 80%, 50%, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, hsla(190, 80%, 50%, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, hsla(var(--primary-hue), 60%, 30%, 0.05) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

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

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

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

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
}

.font-monospace {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ===== Login Page ===== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.login-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    color: white;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: var(--shadow-md), 0 0 20px hsla(var(--primary-hue), 80%, 55%, 0.3);
    }
    50% {
        box-shadow: var(--shadow-md), 0 0 40px hsla(var(--primary-hue), 80%, 55%, 0.5);
    }
}

.login-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-form .form-control {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.875rem 1rem;
    border-radius: 12px;
    transition: var(--transition-normal);
}

.login-form .form-control:focus {
    background: var(--bg-hover);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px hsla(var(--primary-hue), 80%, 55%, 0.2);
}

.login-form .input-group-text {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-right: none;
    color: var(--text-secondary);
    border-radius: 12px 0 0 12px;
}

.login-form .input-group .form-control {
    border-left: none;
    border-radius: 0 12px 12px 0;
}

.login-form .btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 1rem;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition-normal);
}

.login-form .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.login-footer {
    margin-top: 2rem;
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
}

/* Login Particles */
.login-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; animation-duration: 12s; }
.particle:nth-child(2) { left: 30%; animation-delay: 2s; animation-duration: 15s; }
.particle:nth-child(3) { left: 50%; animation-delay: 4s; animation-duration: 18s; }
.particle:nth-child(4) { left: 70%; animation-delay: 1s; animation-duration: 14s; }
.particle:nth-child(5) { left: 90%; animation-delay: 3s; animation-duration: 16s; }

@keyframes float {
    0%, 100% {
        top: 100%;
        opacity: 0;
        transform: scale(0.5);
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        top: -10%;
        opacity: 0;
        transform: scale(1.5);
    }
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: var(--transition-normal);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: var(--shadow-sm);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.sidebar-nav .nav-item {
    margin: 0.25rem 0.75rem;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1rem;
    color: var(--text-secondary);
    border-radius: 12px;
    transition: var(--transition-fast);
    text-decoration: none;
    font-weight: 500;
}

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

.sidebar-nav .nav-link.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.sidebar-nav .nav-link i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

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

.sidebar-footer .nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1rem;
    color: var(--text-secondary);
    border-radius: 12px;
    transition: var(--transition-fast);
    text-decoration: none;
}

.sidebar-footer .nav-link:hover {
    background: hsla(0, 75%, 55%, 0.15);
    color: var(--danger);
}

.sidebar-footer .nav-link i {
    font-size: 1.25rem;
}

/* ===== Main Content ===== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--transition-normal);
}

/* ===== Topbar ===== */
.topbar {
    height: var(--topbar-height);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sidebar-toggle {
    display: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    padding: 0.5rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.auto-refresh-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.auto-refresh-control .form-check {
    margin-bottom: 0;
}

.auto-refresh-control .form-select {
    width: 70px;
    background: var(--bg-elevated);
    border-color: var(--border-color);
    color: var(--text-primary);
    font-size: 0.8rem;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-elevated);
    border-radius: 20px;
    font-size: 0.85rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: blink 1s infinite;
}

.status-indicator.connected {
    background: var(--success);
    animation: none;
}

.status-indicator.error {
    background: var(--danger);
    animation: none;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ===== Page Content ===== */
.page-content {
    padding: 1.5rem;
}

.flash-messages {
    padding: 0 1.5rem;
    margin-top: 1rem;
}

/* ===== Cards ===== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.glass-card .card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-light);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.glass-card .card-title {
    display: flex;
    align-items: center;
}

.glass-card .card-body {
    padding: 1.5rem;
}

/* ===== Stat Cards ===== */
.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    border-radius: 16px 16px 0 0;
}

.stat-card.gradient-primary::before { background: var(--gradient-primary); }
.stat-card.gradient-success::before { background: var(--gradient-success); }
.stat-card.gradient-info::before { background: var(--gradient-info); }
.stat-card.gradient-warning::before { background: var(--gradient-warning); }

.stat-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    font-size: 1.5rem;
    color: white;
}

.gradient-primary .stat-icon { background: var(--gradient-primary); }
.gradient-success .stat-icon { background: var(--gradient-success); }
.gradient-info .stat-icon { background: var(--gradient-info); }
.gradient-warning .stat-icon { background: var(--gradient-warning); }

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.2;
}

.stat-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Info Grid ===== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.info-item {
    padding: 1rem;
    background: var(--bg-elevated);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.info-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.info-value {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
}

/* ===== Raw Data ===== */
.raw-data {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    max-height: 300px;
    overflow: auto;
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ===== Tables ===== */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-light);
    margin: 0;
}

.table thead {
    background: var(--bg-elevated);
}

.table th {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem 1.5rem;
    border-bottom-width: 1px;
}

.table td {
    padding: 1rem 1.5rem;
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background: var(--bg-hover);
}

/* ===== Console ===== */
.console-output {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    min-height: 400px;
    max-height: 500px;
    overflow-y: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

.console-welcome {
    color: var(--text-secondary);
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 1rem;
}

.console-entry {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.console-command {
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

.console-command::before {
    content: '> ';
    color: var(--success);
}

.console-result {
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-all;
}

.console-error {
    color: var(--danger);
}

.command-history {
    max-height: 200px;
    overflow-y: auto;
}

.command-history-item {
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

/* ===== Polls ===== */
.poll-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: var(--transition-normal);
}

.poll-card:hover {
    border-color: var(--primary);
    box-shadow: 0 0 20px hsla(var(--primary-hue), 80%, 55%, 0.1);
}

.poll-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.poll-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.poll-progress {
    height: 8px;
    border-radius: 4px;
    background: var(--bg-dark);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.poll-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* ===== Badges ===== */
.badge-tx-type {
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
}

.badge-send {
    background: hsla(0, 75%, 55%, 0.15);
    color: var(--danger);
}

.badge-receive {
    background: hsla(145, 65%, 45%, 0.15);
    color: var(--success);
}

.badge-stake {
    background: hsla(35, 90%, 55%, 0.15);
    color: var(--warning);
}

.badge-research {
    background: hsla(var(--primary-hue), 80%, 55%, 0.15);
    color: var(--primary-light);
}

/* ===== Buttons ===== */
.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}

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

.quick-cmd {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
}

/* ===== Form Controls ===== */
.form-control,
.form-select {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
}

.form-control:focus,
.form-select:focus {
    background: var(--bg-hover);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px hsla(var(--primary-hue), 80%, 55%, 0.15);
    color: var(--text-primary);
}

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

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

.form-check-input:focus {
    box-shadow: 0 0 0 3px hsla(var(--primary-hue), 80%, 55%, 0.15);
}

/* ===== Alerts ===== */
.alert {
    border-radius: 12px;
    border: none;
}

/* ===== Modals ===== */
.modal-content.glass-card {
    background: var(--bg-card);
}

.modal-header {
    border-bottom: 1px solid var(--border-light);
}

.modal-footer {
    border-top: 1px solid var(--border-light);
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar-toggle {
        display: block;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767.98px) {
    .page-content {
        padding: 1rem;
    }
    
    .topbar {
        padding: 0 1rem;
    }
    
    .topbar-right {
        gap: 0.75rem;
    }
    
    .auto-refresh-control .form-check-label {
        display: none;
    }
    
    .page-title {
        font-size: 1.25rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-value {
        font-size: 1.25rem;
    }
}