:root {
    --bg: #0f1724;
    --nav: #111827;
    --card: #0f1b2b;
    --surface: #0b1220;
    --accent: #1abc9c;
    --muted: #9aa6b2;
    --border: #213041;
}

@font-face {
    font-family: 'Nura';
    src: url('fonts/Nura-SemiBold.woff') format('woff');
    font-weight: 300 800;
    font-style: normal;
    font-display: swap;
}

:root {
    --nav-height: 64px;
}

body {
    background-color: var(--bg);
    color: #e6eef6;
    min-height: 100vh;
    font-family: 'Nura', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow-x: hidden;
    margin: 0;
}

.topbar {
    background-color: var(--nav);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    overflow: hidden;
    position: sticky;
    top: 0;
    z-index: 1100;
    height: var(--nav-height);
}

.topbar .logo,
.topbar .logo {
    color: #fff;
    font-weight: 600;
    letter-spacing: 0.4px;
}

.topbar .me-auto {
    min-width: 0;
}

.topbar .small-muted {
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.topbar .logo,
.topbar .logo {
    text-transform: capitalize;
    font-size: 1.08rem;
}

@media (max-width: 576px) {

    .topbar .logo,
    .topbar .logo {
        font-size: 1rem;
    }
}

.card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 6px 18px rgba(3, 6, 15, 0.6);
    transition: transform 0.18s ease;
}

.card {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.card:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background-color: var(--accent);
    color: #062022;
    border: 0;
    padding: 0.6rem 1rem;
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #15b89d;
}

.btn-primary:disabled {
    opacity: 0.6;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--muted);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.canvas-container {
    border-radius: 6px;
    background-color: var(--surface);
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    max-height: calc(100vh - 300px);
    overflow-y: auto;
}

.canvas-container canvas {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.canvas-wrapper {
    position: relative;
    display: inline-block;
}

.download-fab {
    position: absolute;
    right: 14px;
    bottom: 14px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 18px rgba(6, 32, 34, 0.45);
    z-index: 30;
}

.download-fab:hover {
    transform: translateY(-2px);
}

.download-fab i {
    font-size: 18px
}

.download-fab:focus {
    outline: none;
    box-shadow: none
}

.fullscreen-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(3, 6, 15, 0.9);
    z-index: 1200;
}

.fullscreen-content {
    position: relative;
    max-width: calc(100% - 80px);
    max-height: calc(100% - 80px);
    padding: 20px;
}

.fullscreen-content canvas {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

.fullscreen-close {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: none;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--muted);
}

.fullscreen-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.fullscreen-download {
    position: absolute;
    right: 12px;
    bottom: 12px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 18px rgba(6, 32, 34, 0.45);
}

.fullscreen-download:hover {
    transform: translateY(-2px);
}

.form-control:focus,
textarea.form-control:focus {
    background-color: transparent !important;
    color: #e8f2f8 !important;
    box-shadow: none !important;
}

h1 {
    color: #fff;
    margin-bottom: 12px;
}

.form-control {
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.04);
    color: #e8f2f8;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: none;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.spinner-border {
    color: var(--accent);
}

.nav-tabs .nav-link {
    color: var(--muted);
    border: none;
    background: transparent;
}

.nav-tabs .nav-link.active {
    color: var(--accent);
    border-bottom: 3px solid var(--accent);
}

.nav-tabs .nav-link:hover {
    color: #fff;
}

.nav-tabs {
    border-bottom: none;
    padding-bottom: 8px;
}

.small-muted {
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.95rem;
}

.card .card-body .form-label {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.canvas-preview {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.canvas-container {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.canvas-container::-webkit-scrollbar {
    display: none;
    height: 0;
    width: 0;
}

.canvas-container.rendering {
    padding: 0 !important;
    overflow: hidden !important;
}

.footer-spacer {
    height: 80px;
}

.small-muted {
    color: rgba(255, 255, 255, 0.5);
}

#loadingText {
    white-space: pre-wrap;
}

.topbar .small-muted a,
.topbar a {
    color: var(--muted);
    text-decoration: none;
}

.topbar .small-muted a:hover,
.topbar a:hover {
    color: #fff;
    text-decoration: none;
}

@media (max-width: 576px) {
    .py-2 {
        padding-left: 16px;
        padding-right: 16px;
    }

    .topbar .container {
        padding-left: 12px;
        padding-right: 12px;
    }
}

.main {
    padding-top: var(--nav-height);
}

.site-footer {
    color: var(--muted);
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    position: relative;
    z-index: 5;
}

@media (max-width: 767px) {
    .fullscreen-modal {
        align-items: stretch;
    }

    .fullscreen-content {
        max-width: 100%;
        max-height: 100%;
        width: 100%;
        height: 100%;
        padding: 8px;
    }

    .fullscreen-content canvas {
        width: 100% !important;
        height: 100% !important;
        object-fit: contain;
        border-radius: 0;
    }

    .fullscreen-close,
    .fullscreen-download {
        z-index: 2000;
    }
}