@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
    --bg-dark: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #f1f5f9;
    --bg-card: #ffffff;
    
    --border-subtle: #e2e8f0;
    --border-light: #cbd5e1;
    --border-dark: #0f172a;
    
    --accent-green: #059669;
    --accent-green-hover: #047857;
    --accent-cyan: #0284c7;
    --accent-amber: #d97706;
    --accent-red: #dc2626;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;

    --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    max-width: 100vw;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    max-width: 100vw;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.3;
}

a {
    color: inherit;
    text-decoration: none;
}

.font-mono {
    font-family: var(--font-mono);
}

.neon-text-green {
    color: var(--accent-green);
}

.neon-text-cyan {
    color: var(--accent-cyan);
}

.cyber-container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.cyber-navbar {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

@media (min-width: 769px) {
    .cyber-navbar {
        height: 64px;
        display: flex;
        align-items: center;
    }
    .navbar-container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1.25rem;
        width: 100%;
    }
    .navbar-main-bar {
        display: flex;
        align-items: center;
        gap: 1.5rem;
        flex-shrink: 0;
    }
    .nav-links-scroll {
        display: flex;
        align-items: center;
        flex: 1;
        justify-content: center;
    }
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    color: #0f172a;
    flex-shrink: 0;
}

.brand-logo .brand-badge {
    background: #0f172a;
    color: #ffffff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.18rem 0.5rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.35rem;
    margin: 0;
    padding: 0;
    white-space: nowrap;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-shrink: 0;
    white-space: nowrap;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s ease;
    white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
    color: #0f172a;
    font-weight: 600;
}

.nav-user-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    background: #f1f5f9;
    border: 1px solid var(--border-subtle);
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-md);
    white-space: nowrap;
    flex-shrink: 0;
}

.user-balance-pill {
    background: #0f172a;
    color: #ffffff;
    padding: 0.22rem 0.6rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.82rem;
    white-space: nowrap;
    display: inline-block;
}

.cyber-hero {
    text-align: center;
    padding: 3.5rem 1rem 2.5rem;
    max-width: 820px;
    margin: 0 auto;
}

.cyber-hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: #0f172a;
}

.cyber-hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 1.75rem;
}

.cyber-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-subtle);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.cyber-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-card);
}

.cyber-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}

.cyber-card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: #0f172a;
}

.btn-cyber {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    border: 1px solid transparent;
}

.btn-neon-green {
    background: #0f172a;
    color: #ffffff;
}

.btn-neon-green:hover {
    background: #1e293b;
    color: #ffffff;
}

.btn-cyber-outline {
    background: #ffffff;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}

.btn-cyber-outline:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
}

.btn-cyber-cyan {
    background: var(--accent-cyan);
    color: #ffffff;
}

.btn-cyber-cyan:hover {
    opacity: 0.9;
}

.btn-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
}

.btn-danger:hover {
    background: #fee2e2;
}

.badge-neon {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
}

.badge-green {
    background: #f0fdf4;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.badge-cyan {
    background: #f0f9ff;
    color: #0369a1;
    border: 1px solid #bae6fd;
}

.badge-amber {
    background: #fefce8;
    color: #a16207;
    border: 1px solid #fef08a;
}

.badge-red {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.cyber-form-group {
    margin-bottom: 1.15rem;
}

.cyber-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.cyber-input {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: #0f172a;
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.cyber-input:focus {
    outline: none;
    border-color: #0f172a;
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.1);
}

/* Ngăn trình duyệt mobile (Chrome/Safari Android/iOS) tự động zoom
   vào ô input khi focus, do font-size < 16px là ngưỡng kích hoạt zoom. */
@media (max-width: 768px) {
    .cyber-input,
    select.cyber-input,
    .cyber-select {
        font-size: 16px;
    }
}

select,
select.cyber-select,
select.cyber-input,
.cyber-select {
    width: 100%;
    background-color: #ffffff;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23334155' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.85rem center;
    background-size: 1rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: #0f172a;
    padding: 0.65rem 2.5rem 0.65rem 0.85rem;
    font-size: 0.9rem;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

select.cyber-select:hover,
select.cyber-input:hover,
.cyber-select:hover {
    border-color: #94a3b8;
}

select.cyber-select:focus,
select.cyber-input:focus,
.cyber-select:focus {
    outline: none;
    border-color: #0f172a;
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.1);
}

select.cyber-select option,
select.cyber-input option,
.cyber-select option {
    background-color: #ffffff;
    color: #0f172a;
    padding: 0.6rem 0.85rem;
    font-size: 0.9rem;
}

.cyber-textarea {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: #0f172a;
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    resize: vertical;
}

.cyber-textarea:focus {
    outline: none;
    border-color: #0f172a;
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.1);
}

.cyber-alert {
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.alert-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #15803d;
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
}

.alert-info {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    color: #0369a1;
}

.alert-warning {
    background: #fefce8;
    border: 1px solid #fef08a;
    color: #854d0e;
}

.cyber-table-responsive {
    overflow-x: auto;
    width: 100%;
}

.cyber-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    text-align: left;
}

.cyber-table th {
    background: #f8fafc;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border-subtle);
}

.cyber-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

.cyber-table tr:hover td {
    background: #f8fafc;
}

.cyber-footer {
    border-top: 1px solid var(--border-subtle);
    background: #ffffff;
    padding: 1.75rem 0;
    margin-top: auto;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}


.cyber-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 9999;
    overflow-x: hidden;
    overflow-y: auto;
    padding: 1.5rem 1rem;
    box-sizing: border-box;
}

.cyber-modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.97);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.cyber-modal-dialog {
    background: #ffffff;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 580px;
    max-height: calc(100vh - 3rem);
    display: flex;
    flex-direction: column;
    margin: auto 0;
    position: relative;
    overflow: hidden;
}

.cyber-modal-dialog form {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    margin: 0;
}

.cyber-modal-dialog.modal-lg {
    max-width: 780px;
}

.cyber-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.15rem 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    background: #f8fafc;
    flex-shrink: 0;
}

.cyber-modal-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
}

.cyber-modal-close {
    background: transparent;
    border: none;
    font-size: 1.4rem;
    line-height: 1;
    color: #64748b;
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: background 0.15s ease, color 0.15s ease;
}

.cyber-modal-close:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.cyber-modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
    -webkit-overflow-scrolling: touch;
}

.cyber-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-subtle);
    background: #f8fafc;
    flex-shrink: 0;
}

.btn-cyber-edit {
    background: #f8fafc;
    border: 1px solid var(--border-light);
    color: #334155;
}

.btn-cyber-edit:hover {
    background: #e2e8f0;
    color: #0f172a;
}

@media (max-width: 768px) {
    .cyber-navbar {
        height: 56px;
        padding: 0;
        width: 100%;
        max-width: 100vw;
        overflow: hidden;
        display: flex;
        align-items: center;
    }
    .navbar-container {
        padding: 0 0.85rem;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 0.5rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    .cyber-hero-title {
        font-size: 1.85rem;
    }
    .brand-logo {
        font-size: 1.15rem;
        gap: 0.3rem;
        flex-shrink: 0;
    }
    .brand-logo .brand-badge {
        font-size: 0.65rem;
        padding: 0.12rem 0.35rem;
    }
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 0.45rem;
        flex: 1;
        min-width: 0;
        max-width: calc(100vw - 115px);
        justify-content: flex-start;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
        scrollbar-width: none;
        padding: 0.15rem 0;
    }
    .nav-actions::-webkit-scrollbar {
        display: none;
    }
    .nav-actions > * {
        flex-shrink: 0 !important;
    }
    .nav-user-badge {
        display: flex;
        align-items: center;
        gap: 0.35rem;
        background: #f8fafc;
        padding: 0.22rem 0.5rem;
        border-radius: 9999px;
        border: 1px solid #e2e8f0;
        text-decoration: none;
        flex-shrink: 0;
    }
    .nav-user-name {
        display: inline-block !important;
        font-size: 0.8rem;
        font-weight: 600;
        color: #0f172a;
        white-space: nowrap;
    }
    .user-balance-pill {
        font-size: 0.75rem;
        padding: 0.15rem 0.45rem;
        white-space: nowrap;
    }
    .nav-avatar-container {
        flex-shrink: 0;
        margin: 0 0.15rem !important;
    }
    .nav-btn-compact {
        padding: 0.3rem 0.6rem !important;
        font-size: 0.78rem !important;
        flex-shrink: 0;
        display: inline-flex !important;
        align-items: center;
        gap: 0.3rem;
    }
    .nav-btn-compact i {
        font-size: 0.85rem;
    }
    .nav-links-scroll {
        width: 100%;
        max-width: 100%;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: 0.1rem 0 0.2rem 0;
    }
    .nav-links-scroll::-webkit-scrollbar {
        display: none;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 0.35rem;
        list-style: none;
        margin: 0;
        padding: 0 0.1rem;
        width: max-content;
    }
    .nav-links li a {
        display: inline-flex;
        align-items: center;
        gap: 0.3rem;
        padding: 0.28rem 0.65rem;
        background: #f1f5f9;
        border-radius: 9999px;
        font-size: 0.76rem;
        font-weight: 600;
        white-space: nowrap;
        border: 1px solid #e2e8f0;
        color: var(--text-secondary);
        display: inline-block;
        text-decoration: none;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
        background: #0f172a;
        color: #ffffff;
        border-color: #0f172a;
    }
    .cyber-container {
        padding: 0 0.85rem;
    }
}

/* Khống chế khung avatar trong Navbar không bao giờ được vỡ hoặc tràn ra ngoài */
.cyber-navbar .avatar-frame-box {
    width: 28px !important;
    height: 28px !important;
    margin: 0 0.2rem !important;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cyber-navbar .avatar-inner-circle {
    width: 28px !important;
    height: 28px !important;
    border-radius: 50%;
}
.cyber-navbar .avatar-frame-overlay {
    max-width: 44px !important;
    max-height: 44px !important;
    width: auto !important;
    height: auto !important;
    object-fit: contain;
}

/* Custom Confirmation Modal (Không dùng confirm mặc định của trình duyệt) */
.cyber-confirm-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    animation: cyberFadeIn 0.15s ease-out;
}
.cyber-confirm-dialog {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.25);
    width: 100%;
    max-width: 440px;
    padding: 1.5rem;
    color: #0f172a;
    animation: cyberZoomIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}
.cyber-confirm-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #f1f5f9;
}
.cyber-confirm-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
}
.cyber-confirm-body {
    color: #475569;
    font-size: 0.92rem;
    line-height: 1.55;
    margin-bottom: 1.5rem;
    white-space: pre-line;
}
.cyber-confirm-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}
@keyframes cyberFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes cyberZoomIn {
    from { transform: scale(0.96); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}