/* =====================================================
   PRINTYLIX – Production-Grade Engineering UI
   Inspired by Linear, Vercel, and GitHub
   ===================================================== */

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

/* ---- COLOR SYSTEM & VARIABLES ---- */
:root {
    /* DEFAULT DARK THEME */
    --bg: #0b0d11;
    --bg-glow: radial-gradient(circle at 50% -20%, #1e2631 0%, #0b0d11 60%);
    --surface: #151821;
    --surface-hover: #1b1f2a;
    --border: #2a2e37;
    --border-hover: #404654;
    --text: #f0f0f0;
    --text-muted: #9aa4b2;
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --accent-glow: rgba(79, 70, 229, 0.4);
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #10b981;
    --warning: #f59e0b;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.5);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.5);
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    
    --input-bg: #1a1e26;
    --input-focus-bg: #1f242d;
    --card-shadow: rgba(0,0,0,0.6);
    --nav-height: 72px;
    --header-top-height: 0px;

    /* ANIMATION VARIABLES */
    --mouse-x: 50%;
    --mouse-y: 50%;
    --glow-color: rgba(79, 70, 229, 0.25);
    --grid-color: rgba(255, 255, 255, 0.03);
}

[data-theme='light'] {
    --bg: #f8fafc;
    --bg-glow: radial-gradient(circle at 50% -20%, #e2e8f0 0%, #f8fafc 80%);
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --border: #e2e8f0;
    --border-hover: #cbd5e1;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --accent-glow: rgba(79, 70, 229, 0.15);
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 40px rgba(0,0,0,0.08);
    --input-bg: #ffffff;
    --input-focus-bg: #f8fafc;
    --card-shadow: rgba(0,0,0,0.08);

    /* LIGHT ANIMATION VARIABLES */
    --glow-color: rgba(79, 70, 229, 0.08);
    --grid-color: rgba(0, 0, 0, 0.02);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    overflow-y: auto !important;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    background-image: var(--bg-glow);
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--text);
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }
p { margin-bottom: 1rem; color: var(--text-muted); }

a {
    color: var(--text);
    text-decoration: none;
    transition: color var(--transition);
}

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

code, pre {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.2em 0.4em;
}

/* ---- LAYOUT & SPACING ---- */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- HEADER / NAVBAR ---- */
.navbar {
    position: sticky;
    top: var(--header-top-height);
    transition: top 0.3s ease;
    z-index: 1000 !important;
    visibility: visible !important;
    display: flex !important;
    background: #0b0d11; /* Removed transparency/blur */
    border-bottom: 1px solid var(--border);
    height: var(--nav-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 24px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo {
    width: 24px;
    height: 24px;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.logo-text {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text);
    background: var(--surface-hover);
}

.nav-links a.nav-admin {
    color: var(--danger);
}

.nav-search-wrap input {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 6px 12px;
    color: var(--text);
    width: 240px;
    font-size: 0.875rem;
    transition: all var(--transition);
}

.nav-search-wrap input:focus {
    outline: none;
    border-color: var(--accent);
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

.nav-username {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
}

.nav-icon-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
}

.nav-icon-btn:hover {
    background: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.token-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 6px 12px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
}

/* ---- BUTTONS ---- */
button, .primary-btn, .secondary-btn, .btn-primary, .btn-secondary, .btn-danger, .mini-btn {
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.primary-btn, .btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: #fff !important;
    border: 1px solid rgba(255,255,255,0.1);
    padding: 10px 20px;
    box-shadow: 0 4px 14px 0 var(--accent-glow);
}

.primary-btn:hover, .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.6);
    filter: brightness(1.1);
}

.secondary-btn, .btn-secondary {
    background: transparent;
    color: var(--text) !important;
    border: 1px solid var(--border);
    padding: 8px 16px;
}

.secondary-btn:hover, .btn-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
}

.btn-danger, .danger-btn {
    background: transparent;
    color: var(--danger) !important;
    border: 1px solid var(--border);
    padding: 8px 16px;
}

.btn-danger:hover, .danger-btn:hover {
    background: var(--danger);
    color: #fff !important;
    border-color: var(--danger);
}

/* ---- CARDS & SURFACES ---- */
.glass-panel, .printer-card, .feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.glass-panel:hover, .printer-card:hover, .feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px var(--card-shadow), 0 0 0 1px var(--accent-glow);
}

.printer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

/* ---- FORMS & INPUTS ---- */
input, select, textarea {
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    width: 100%;
    font-size: 0.9375rem;
    outline: none;
    transition: all var(--transition);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    background: var(--input-focus-bg);
    box-shadow: 0 0 0 4px var(--accent-glow), inset 0 2px 4px rgba(0,0,0,0.05);
}

select option {
    background: var(--surface);
    color: var(--text);
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-group {
    margin-bottom: 20px;
}

/* ---- UTILITIES & BADGES ---- */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--surface);
}

.badge-admin { 
    background: transparent; 
    color: var(--danger);
    border: 1px solid var(--danger);
    padding: 2px 8px; 
    border-radius: var(--radius-md); 
    font-size: 0.7rem; 
    font-weight: 600; 
    margin-left: 8px; 
}

.badge-notif-dot {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
}

.text-center { text-align: center; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.muted-text { color: var(--text-muted); }

/* ---- HERO SECTION ---- */
.hero-section {
    padding: 96px 24px;
    text-align: center;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    border-bottom: 1px solid var(--border);
}

.hero-content {
    max-width: 720px;
    width: 100%;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.04em;
    margin-bottom: 1.5rem;
    color: var(--text);
    font-weight: 600;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ---- FOOTER ---- */
.footer {
    margin-top: auto;
    padding: 48px 24px;
    border-top: 1px solid var(--border);
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.footer-badges {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: var(--radius-md);
}

/* ---- RESPONSIVENESS ---- */
@media (max-width: 900px) {
    .navbar {
        flex-wrap: wrap;
        height: auto;
        padding: 16px;
        gap: 16px;
    }
    .nav-links {
        order: 3;
        width: 100%;
        overflow-x: auto;
        padding-bottom: 8px;
    }
}

@media (max-width: 600px) {
    .hero-section { padding: 64px 16px; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions > * { width: 100%; }
    h1 { font-size: 2rem; }
    .printer-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; }
}

/* ---- PAGE TITLES ---- */
.page-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* ---- LEVEL BADGES ---- */
.level-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    background: rgba(255,255,255,0.03);
}

.level-baslangic  { border-color: #10b98166; color: #10b981; background: rgba(16, 185, 129, 0.05); }
.level-orta       { border-color: #f59e0b66; color: #f59e0b; background: rgba(245, 158, 11, 0.05); }
.level-ileri      { border-color: #3b82f666; color: #3b82f6; background: rgba(59, 130, 246, 0.05); }
.level-profesyonel,
.level-pro        { border-color: #8b5cf666; color: #8b5cf6; background: rgba(139, 92, 246, 0.05); }
.level-endustriyel{ border-color: #ef444466; color: #ef4444; background: rgba(239, 68, 68, 0.05); }

/* ---- ACCORDION ---- */
.accordion-container { display: flex; flex-direction: column; gap: 8px; }

.accordion-item {
    padding: 0;
    overflow: hidden;
}

.accordion-header {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition);
}

.accordion-header:hover {
    background: var(--surface-hover);
}

.accordion-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: var(--text);
}

.accordion-header h2::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    margin-right: 12px;
    vertical-align: middle;
}

/* ---- GALLERY (SHOWCASE) ---- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 2rem;
}

.gallery-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition), transform var(--transition);
}

.gallery-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.gallery-img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
    display: block;
}

.gallery-content { padding: 16px; }

.gallery-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.gallery-meta {
    font-size: 0.8125rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ---- UPLOAD SECTION ---- */
.upload-section {
    background: var(--surface);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    margin-bottom: 2rem;
    cursor: pointer;
    transition: all var(--transition);
}

.upload-section:hover {
    border-color: var(--accent);
    background: var(--surface-hover);
}

#upload-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}

/* ---- MINI BTN / BTN-SM ---- */
.mini-btn, .btn-sm {
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
    white-space: nowrap;
}

.mini-btn:hover, .btn-sm:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
}

.success-btn {
    background: var(--surface);
    color: var(--success) !important;
    border-color: var(--border);
}

.success-btn:hover {
    background: var(--success);
    color: #fff !important;
    border-color: var(--success);
}

/* ---- FLEX UTILITIES ---- */
.flex               { display: flex; }
.flex-col           { flex-direction: column; }
.items-center       { align-items: center; }
.justify-center     { justify-content: center; }
.justify-between    { justify-content: space-between; }
.flex-wrap          { flex-wrap: wrap; }
.gap-1              { gap: 8px; }
.gap-2              { gap: 16px; }
.p-1                { padding: 8px; }
.p-2                { padding: 16px; }
.py-2               { padding-top: 16px; padding-bottom: 16px; }
.w-full             { width: 100%; }
.hidden             { display: none !important; }
.animate-in         { animation: fadeIn 0.2s ease; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- COMPARE BAR ---- */
#compare-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

/* ---- TOAST ---- */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    background: var(--text);
    color: var(--bg);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 9999;
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.error   { background: var(--danger); color: white; }
.toast.success { background: var(--success); color: white; }
.toast.warning { background: var(--warning); color: white; }

/* --- TOP BARS (Ticker & Utility) --- */
.top-bars-container {
    background: #0d1117;
    border-bottom: 1px solid var(--border);
    z-index: 1100;
}

.ticker-bar {
    height: 32px;
    background: #161b22;
    border-bottom: 1px solid rgba(48,54,61,0.5);
    display: flex;
    align-items: center;
    overflow: hidden;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
}

.utility-bar {
    height: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    background: #0d1117;
}

/* --- MOBILE NAV FIXES --- */
@media (max-width: 1000px) {
    .nav-links {
        display: flex !important;
        visibility: visible !important;
        overflow-x: auto;
        width: 100%;
        padding: 10px 0;
        gap: 15px;
        -webkit-overflow-scrolling: touch;
    }
    .navbar { position: sticky; top: 0; padding: 10px 15px; }
    .logo-text { display: none; }
    .utility-bar { padding: 0 15px; font-size: 0.7rem; }
}
/* ---- BACKGROUND ANIMATION ---- */
.bg-animation-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
    background: var(--bg);
}

#bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
}

.mouse-glow {
    position: absolute;
    top: var(--mouse-y);
    left: var(--mouse-x);
    width: 800px;
    height: 800px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, var(--glow-color) 0%, transparent 70%);
    filter: blur(60px);
    opacity: 0.8;
    transition: opacity 0.5s ease;
    will-change: top, left;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(circle at var(--mouse-x) var(--mouse-y), black 0%, transparent 60%);
    -webkit-mask-image: radial-gradient(circle at var(--mouse-x) var(--mouse-y), black 0%, transparent 60%);
    opacity: 0.6;
}

@media (max-width: 768px) {
    .mouse-glow { width: 400px; height: 400px; }
    .grid-pattern { background-size: 30px 30px; }
}