<?php

require_once __DIR__ . '/../src/bootstrap.php';

$db = Database::connect();

// ── Security headers ──
header('X-Content-Type-Options: nosniff');
header('X-Frame-Options: DENY');
header('X-XSS-Protection: 1; mode=block');
header('Referrer-Policy: strict-origin-when-cross-origin');
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') {
    header('Strict-Transport-Security: max-age=31536000; includeSubDomains');
}

// ── Session ──
session_set_cookie_params([
    'httponly' => true,
    'secure' => !empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off',
    'samesite' => 'Strict',
]);
session_start();

// CSRF token
if (empty($_SESSION['csrf_token'])) {
    $_SESSION['csrf_token'] = bin2hex(random_bytes(32));
}

// ── Auth ──

$method = $_SERVER['REQUEST_METHOD'];
$path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
$basePath = dirname($_SERVER['SCRIPT_NAME']);
$route = ($basePath === '/' || $basePath === '\\') ? $path : str_replace($basePath, '', $path);

$pwHash = $db->query("SELECT value FROM settings WHERE key = 'password_hash'")->fetchColumn();
$isSetup = !$pwHash;
$isLoggedIn = !empty($_SESSION['hyprcrd_auth']);

// Auth API endpoints (always accessible)
if (str_starts_with($route, '/api/auth')) {
    error_reporting(0);
    header('Content-Type: application/json');

    // GET /api/auth/status
    if ($route === '/api/auth/status' && $method === 'GET') {
        echo json_encode(['setup' => $isSetup, 'logged_in' => $isLoggedIn, 'csrf' => $_SESSION['csrf_token']]);
        exit;
    }

    // POST /api/auth/setup — set initial password
    if ($route === '/api/auth/setup' && $method === 'POST' && $isSetup) {
        $input = json_decode(file_get_contents('php://input'), true);
        $pw = $input['password'] ?? '';
        if (strlen($pw) < 4) {
            http_response_code(400);
            echo json_encode(['error' => 'password too short (min 4)']);
            exit;
        }
        $hash = password_hash($pw, PASSWORD_BCRYPT);
        $db->prepare("INSERT OR REPLACE INTO settings (key, value) VALUES ('password_hash', :hash)")->execute(['hash' => $hash]);
        session_regenerate_id(true);
        $_SESSION['hyprcrd_auth'] = true;
        $_SESSION['csrf_token'] = bin2hex(random_bytes(32));
        echo json_encode(['ok' => true, 'csrf' => $_SESSION['csrf_token']]);
        exit;
    }

    // POST /api/auth/login (rate limited)
    if ($route === '/api/auth/login' && $method === 'POST') {
        $attempts = $_SESSION['login_attempts'] ?? 0;
        $lastAttempt = $_SESSION['login_last'] ?? 0;
        if ($attempts >= 5 && time() - $lastAttempt < 60) {
            http_response_code(429);
            echo json_encode(['error' => 'too many attempts, wait 60s']);
            exit;
        }
        $input = json_decode(file_get_contents('php://input'), true);
        $pw = $input['password'] ?? '';
        if ($pwHash && password_verify($pw, $pwHash)) {
            session_regenerate_id(true);
            $_SESSION['hyprcrd_auth'] = true;
            $_SESSION['csrf_token'] = bin2hex(random_bytes(32));
            $_SESSION['login_attempts'] = 0;
            echo json_encode(['ok' => true, 'csrf' => $_SESSION['csrf_token']]);
        } else {
            $_SESSION['login_attempts'] = $attempts + 1;
            $_SESSION['login_last'] = time();
            usleep(300000); // 300ms delay against timing attacks
            http_response_code(401);
            echo json_encode(['error' => 'wrong password']);
        }
        exit;
    }

    // POST /api/auth/logout
    if ($route === '/api/auth/logout' && $method === 'POST') {
        $_SESSION = [];
        session_destroy();
        echo json_encode(['ok' => true]);
        exit;
    }

    http_response_code(404);
    echo json_encode(['error' => 'not found']);
    exit;
}

// All other API/page requests require auth (unless setup mode)
if (!$isSetup && !$isLoggedIn) {
    if (str_starts_with($route, '/api/')) {
        http_response_code(401);
        header('Content-Type: application/json');
        echo json_encode(['error' => 'unauthorized']);
        exit;
    }
    // For page requests, still serve the HTML shell — JS will show login dialog
}

if (str_starts_with($route, '/api/')) {
    error_reporting(0);
    header('Content-Type: application/json');

    // CSRF check on all state-changing requests
    if (in_array($method, ['POST', 'PATCH', 'DELETE'])) {
        $csrfHeader = $_SERVER['HTTP_X_CSRF_TOKEN'] ?? '';
        if (!hash_equals($_SESSION['csrf_token'] ?? '', $csrfHeader)) {
            http_response_code(403);
            echo json_encode(['error' => 'invalid csrf token']);
            exit;
        }
    }

    // Input sanitization
    function validColor($c) { return preg_match('/^#[0-9a-fA-F]{6}$/', $c ?? '') ? $c : '#ffffff'; }
    function validInt($v, $default = 0) { return is_numeric($v) ? (int)$v : $default; }

    // Cards
    if ($route === '/api/cards' && $method === 'POST') {
        $input = json_decode(file_get_contents('php://input'), true);
        $title = trim($input['title'] ?? '');
        if ($title === '') { http_response_code(400); echo json_encode(['error' => 'title is required']); exit; }
        $pos = $input['position'] ?? 0;
        $db->prepare('INSERT INTO cards (title, body, color, bucket_id, parent_id, position) VALUES (:title, :body, :color, :bucket_id, :parent_id, :position)')->execute([
            'title' => $title, 'body' => $input['body'] ?? '', 'color' => validColor($input['color'] ?? null),
            'bucket_id' => validInt($input['bucket_id'] ?? null, null),
            'parent_id' => validInt($input['parent_id'] ?? null, null),
            'position' => validInt($pos),
        ]);
        echo json_encode($db->query('SELECT c.*, b.name as bucket_name FROM cards c LEFT JOIN buckets b ON c.bucket_id = b.id WHERE c.id = ' . $db->lastInsertId())->fetch());
        exit;
    }

    if ($route === '/api/cards' && $method === 'GET') {
        echo json_encode($db->query('SELECT c.*, b.name as bucket_name FROM cards c LEFT JOIN buckets b ON c.bucket_id = b.id ORDER BY c.position ASC, c.created_at DESC')->fetchAll());
        exit;
    }

    if (preg_match('#^/api/cards/(\d+)$#', $route, $m) && $method === 'DELETE') {
        $db->prepare('DELETE FROM cards WHERE id = :id')->execute(['id' => $m[1]]);
        echo json_encode(['ok' => true]); exit;
    }

    if (preg_match('#^/api/cards/(\d+)$#', $route, $m) && $method === 'PATCH') {
        $input = json_decode(file_get_contents('php://input'), true);
        $fields = []; $params = ['id' => $m[1]];
        foreach (['title', 'body', 'color', 'position', 'bucket_id', 'parent_id'] as $f) {
            if (array_key_exists($f, $input)) { $fields[] = "$f = :$f"; $params[$f] = $input[$f]; }
        }
        if ($fields) { $fields[] = 'updated_at = datetime("now")'; $db->prepare('UPDATE cards SET ' . implode(', ', $fields) . ' WHERE id = :id')->execute($params); }
        $card = $db->prepare('SELECT c.*, b.name as bucket_name FROM cards c LEFT JOIN buckets b ON c.bucket_id = b.id WHERE c.id = :id');
        $card->execute(['id' => $m[1]]); echo json_encode($card->fetch()); exit;
    }

    // Buckets
    if ($route === '/api/buckets' && $method === 'GET') {
        echo json_encode($db->query('SELECT * FROM buckets ORDER BY position ASC, created_at ASC')->fetchAll()); exit;
    }

    if ($route === '/api/buckets' && $method === 'POST') {
        $input = json_decode(file_get_contents('php://input'), true);
        $name = trim($input['name'] ?? '');
        if ($name === '') { http_response_code(400); echo json_encode(['error' => 'name is required']); exit; }
        $db->prepare('INSERT INTO buckets (name) VALUES (:name)')->execute(['name' => $name]);
        echo json_encode($db->query('SELECT * FROM buckets WHERE id = ' . $db->lastInsertId())->fetch()); exit;
    }

    if (preg_match('#^/api/buckets/(\d+)$#', $route, $m) && $method === 'PATCH') {
        $input = json_decode(file_get_contents('php://input'), true);
        $fields = []; $params = ['id' => $m[1]];
        foreach (['name', 'position', 'color'] as $f) { if (array_key_exists($f, $input)) { $fields[] = "$f = :$f"; $params[$f] = $f === 'color' ? validColor($input[$f]) : $input[$f]; } }
        if ($fields) $db->prepare('UPDATE buckets SET ' . implode(', ', $fields) . ' WHERE id = :id')->execute($params);
        $b = $db->prepare('SELECT * FROM buckets WHERE id = :id'); $b->execute(['id' => $m[1]]); echo json_encode($b->fetch()); exit;
    }

    if (preg_match('#^/api/buckets/(\d+)$#', $route, $m) && $method === 'DELETE') {
        $db->prepare('UPDATE cards SET bucket_id = NULL WHERE bucket_id = :id')->execute(['id' => $m[1]]);
        $db->prepare('DELETE FROM buckets WHERE id = :id')->execute(['id' => $m[1]]);
        echo json_encode(['ok' => true]); exit;
    }

    // List all upload files
    if ($route === '/api/uploads' && $method === 'GET') {
        $dir = __DIR__ . '/uploads';
        $files = [];
        if (is_dir($dir)) {
            foreach (glob($dir . '/*.{png,jpg,gif,webp,mp3,ogg,wav,m4a}', GLOB_BRACE) as $f) {
                $name = basename($f);
                $files[] = ['name' => $name, 'url' => 'uploads/' . $name, 'size' => filesize($f), 'modified' => filemtime($f)];
            }
        }
        usort($files, fn($a, $b) => $b['modified'] - $a['modified']);
        echo json_encode($files);
        exit;
    }

    // Delete an upload file
    if (preg_match('#^/api/uploads/([a-f0-9]+\.\w+)$#', $route, $m) && $method === 'DELETE') {
        $file = __DIR__ . '/uploads/' . basename($m[1]);
        if (is_file($file)) {
            unlink($file);
            echo json_encode(['ok' => true]);
        } else {
            http_response_code(404);
            echo json_encode(['error' => 'file not found']);
        }
        exit;
    }

    // Upload (max 10MB, real MIME check)
    if ($route === '/api/upload' && $method === 'POST') {
        $uploadDir = __DIR__ . '/uploads';
        if (!is_dir($uploadDir)) mkdir($uploadDir, 0755, true);

        if (empty($_FILES['file']) || $_FILES['file']['error'] !== UPLOAD_ERR_OK) {
            http_response_code(400);
            echo json_encode(['error' => 'no file', 'debug_files' => array_keys($_FILES), 'debug_method' => $method, 'debug_ct' => $_SERVER['CONTENT_TYPE'] ?? 'none']);
            exit;
        }

        $file = $_FILES['file'];
        if ($file['size'] > 10 * 1024 * 1024) {
            http_response_code(400);
            echo json_encode(['error' => 'file too large (max 10MB)']);
            exit;
        }

        // Check MIME — finfo first, fallback to extension for audio
        $mimeMap = ['image/png' => 'png', 'image/jpeg' => 'jpg', 'image/gif' => 'gif', 'image/webp' => 'webp', 'audio/mpeg' => 'mp3', 'audio/ogg' => 'ogg', 'audio/wav' => 'wav', 'audio/x-wav' => 'wav', 'audio/mp4' => 'm4a', 'application/ogg' => 'ogg'];
        $extMap = ['mp3' => 'mp3', 'ogg' => 'ogg', 'wav' => 'wav', 'm4a' => 'm4a'];
        $finfo = new finfo(FILEINFO_MIME_TYPE);
        $realMime = $finfo->file($file['tmp_name']);
        $ext = $mimeMap[$realMime] ?? null;
        // Fallback: trust extension for audio when finfo returns octet-stream
        if (!$ext && ($realMime === 'application/octet-stream' || str_starts_with($realMime, 'audio/'))) {
            $origExt = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION));
            $ext = $extMap[$origExt] ?? null;
        }
        if (!$ext) {
            http_response_code(400);
            echo json_encode(['error' => 'invalid file type', 'detected' => $realMime]);
            exit;
        }

        $name = bin2hex(random_bytes(16)) . '.' . $ext;
        $dest = $uploadDir . '/' . $name;
        if (!move_uploaded_file($file['tmp_name'], $dest)) {
            http_response_code(500);
            echo json_encode(['error' => 'upload failed']);
            exit;
        }

        http_response_code(201);
        echo json_encode(['url' => 'uploads/' . $name, 'name' => $name]);
        exit;
    }

    // Export — ZIP with JSON dump + uploads
    if ($route === '/api/export' && $method === 'GET') {
        $cards = $db->query('SELECT * FROM cards ORDER BY id')->fetchAll();
        $buckets = $db->query('SELECT * FROM buckets ORDER BY id')->fetchAll();

        $tmp = tempnam(sys_get_temp_dir(), 'hyprcrd_');
        $zip = new ZipArchive();
        $zip->open($tmp, ZipArchive::OVERWRITE);
        $zip->addFromString('data.json', json_encode(['version' => 1, 'buckets' => $buckets, 'cards' => $cards], JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));

        $uploadDir = __DIR__ . '/uploads';
        if (is_dir($uploadDir)) {
            foreach (glob($uploadDir . '/*') as $f) {
                if (is_file($f)) $zip->addFile($f, 'uploads/' . basename($f));
            }
        }
        $zip->close();

        header('Content-Type: application/zip');
        header('Content-Disposition: attachment; filename="hyprcrd-export-' . date('Y-m-d') . '.zip"');
        header('Content-Length: ' . filesize($tmp));
        readfile($tmp);
        unlink($tmp);
        exit;
    }

    // Import — ZIP with JSON dump + uploads
    if ($route === '/api/import' && $method === 'POST') {
        if (empty($_FILES['file']) || $_FILES['file']['error'] !== UPLOAD_ERR_OK) {
            http_response_code(400);
            echo json_encode(['error' => 'no file']); exit;
        }

        $zip = new ZipArchive();
        if ($zip->open($_FILES['file']['tmp_name']) !== true) {
            http_response_code(400);
            echo json_encode(['error' => 'invalid zip']); exit;
        }

        $json = $zip->getFromName('data.json');
        if (!$json) {
            $zip->close();
            http_response_code(400);
            echo json_encode(['error' => 'no data.json in archive']); exit;
        }

        $data = json_decode($json, true);
        if (!$data || !isset($data['buckets']) || !isset($data['cards'])) {
            $zip->close();
            http_response_code(400);
            echo json_encode(['error' => 'invalid data.json']); exit;
        }

        // Clear existing data
        $db->exec('DELETE FROM cards');
        $db->exec('DELETE FROM buckets');

        // Import buckets
        $bucketMap = [];
        foreach ($data['buckets'] as $b) {
            $oldId = $b['id'];
            $stmt = $db->prepare('INSERT INTO buckets (name, position, created_at) VALUES (:name, :position, :created_at)');
            $stmt->execute(['name' => $b['name'], 'position' => $b['position'] ?? 0, 'created_at' => $b['created_at'] ?? date('Y-m-d H:i:s')]);
            $bucketMap[$oldId] = $db->lastInsertId();
        }

        // Import cards
        foreach ($data['cards'] as $c) {
            $bucketId = ($c['bucket_id'] && isset($bucketMap[$c['bucket_id']])) ? $bucketMap[$c['bucket_id']] : null;
            $stmt = $db->prepare('INSERT INTO cards (title, body, color, bucket_id, position, created_at, updated_at) VALUES (:title, :body, :color, :bucket_id, :position, :created_at, :updated_at)');
            $stmt->execute([
                'title' => $c['title'], 'body' => $c['body'], 'color' => $c['color'],
                'bucket_id' => $bucketId, 'position' => $c['position'] ?? 0,
                'created_at' => $c['created_at'] ?? date('Y-m-d H:i:s'),
                'updated_at' => $c['updated_at'] ?? date('Y-m-d H:i:s'),
            ]);
        }

        // Extract uploads
        $uploadDir = __DIR__ . '/uploads';
        if (!is_dir($uploadDir)) mkdir($uploadDir, 0777, true);
        for ($i = 0; $i < $zip->numFiles; $i++) {
            $name = $zip->getNameIndex($i);
            if (str_starts_with($name, 'uploads/') && $name !== 'uploads/') {
                $content = $zip->getFromIndex($i);
                if ($content !== false) {
                    file_put_contents($uploadDir . '/' . basename($name), $content);
                }
            }
        }
        $zip->close();

        echo json_encode(['ok' => true, 'buckets' => count($data['buckets']), 'cards' => count($data['cards'])]);
        exit;
    }

    http_response_code(404); echo json_encode(['error' => 'not found']); exit;
}

// ── HTML Shell ──
?>
<!DOCTYPE html>
<html lang="de">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>hyprcrd</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://unpkg.com/@phosphor-icons/web"></script>
    <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/dompurify@3/dist/purify.min.js"></script>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Silkscreen:wght@400;700&display=swap" rel="stylesheet">
    <link rel="stylesheet" href="css/style.css?v=<?= time() ?>">
    <script>
    tailwind.config = { theme: { extend: {
        fontFamily: { mono: ['JetBrains Mono', 'monospace'], pixel: ['Silkscreen', 'cursive'] },
        colors: { t: { bg:'var(--t-bg)', surface:'var(--t-surface)', raised:'var(--t-raised)', border:'var(--t-border)', dim:'var(--t-dim)', muted:'var(--t-muted)', text:'var(--t-text)', bright:'var(--t-bright)', accent:'var(--t-accent)', accent2:'var(--t-accent2)', danger:'var(--t-danger)' } }
    }}}
    </script>
    <script>
    window.themes = {
        slate:    { label:'Slate',    vars:{ '--t-bg':'#1e293b','--t-surface':'#273349','--t-raised':'#2e3d56','--t-border':'#384a64','--t-dim':'#64748b','--t-muted':'#94a3b8','--t-text':'#cbd5e1','--t-bright':'#f1f5f9','--t-accent':'#38bdf8','--t-accent2':'#818cf8','--t-danger':'#fb7185','--t-scanline':'rgba(0,0,0,0.04)','--t-overlay':'rgba(15,23,42,0.75)','--t-font-pixel':'"Silkscreen", cursive' }},
        phosphor: { label:'Phosphor', vars:{ '--t-bg':'#0a0f0a','--t-surface':'#0f1a0f','--t-raised':'#142214','--t-border':'#1a3a1a','--t-dim':'#2d5a2d','--t-muted':'#4a8a4a','--t-text':'#7bc67b','--t-bright':'#b8f0b8','--t-accent':'#4ade80','--t-accent2':'#22d3ee','--t-danger':'#f87171','--t-scanline':'rgba(0,0,0,0.1)','--t-overlay':'rgba(5,10,5,0.85)','--t-font-pixel':'"Silkscreen", cursive' }},
        midnight: { label:'Midnight', vars:{ '--t-bg':'#0f172a','--t-surface':'#162033','--t-raised':'#1c2940','--t-border':'#263650','--t-dim':'#475882','--t-muted':'#7088b0','--t-text':'#a8bdd8','--t-bright':'#e2e8f0','--t-accent':'#a78bfa','--t-accent2':'#f472b6','--t-danger':'#fb7185','--t-scanline':'rgba(0,0,0,0.06)','--t-overlay':'rgba(10,15,30,0.8)','--t-font-pixel':'"Silkscreen", cursive' }},
        amber:    { label:'Amber',    vars:{ '--t-bg':'#1a1408','--t-surface':'#231c0e','--t-raised':'#2c2414','--t-border':'#3d3520','--t-dim':'#6b5c38','--t-muted':'#a08c5a','--t-text':'#d4c088','--t-bright':'#fbe8b0','--t-accent':'#fbbf24','--t-accent2':'#fb923c','--t-danger':'#ef4444','--t-scanline':'rgba(0,0,0,0.08)','--t-overlay':'rgba(20,16,5,0.8)','--t-font-pixel':'"Silkscreen", cursive' }},
        paper:    { label:'Paper',    vars:{ '--t-bg':'#f5f1eb','--t-surface':'#ffffff','--t-raised':'#eae5dd','--t-border':'#d6d0c4','--t-dim':'#a8a08e','--t-muted':'#7a7468','--t-text':'#3d3832','--t-bright':'#1a1714','--t-accent':'#2563eb','--t-accent2':'#7c3aed','--t-danger':'#dc2626','--t-scanline':'rgba(0,0,0,0)','--t-overlay':'rgba(245,241,235,0.8)','--t-font-pixel':'"JetBrains Mono", monospace' }},
    };
    window.applyTheme = function(name) {
        const t = themes[name] || themes.slate;
        for (const [k,v] of Object.entries(t.vars)) document.documentElement.style.setProperty(k,v);
        localStorage.setItem('hyprcrd-theme', name);
        document.querySelectorAll('[data-theme-dot]').forEach(el => {
            const a = el.dataset.themeDot === name;
            el.classList.toggle('ring-2',a); el.classList.toggle('ring-t-accent',a); el.classList.toggle('ring-offset-1',a); el.classList.toggle('ring-offset-t-bg',a);
        });
    }
    applyTheme(localStorage.getItem('hyprcrd-theme') || 'slate');
    </script>
</head>
<!-- tailwind safelist: border-t-bright border-transparent scale-125 text-t-accent line-clamp-2 border-t-danger text-t-danger pr-16 -->
<body class="bg-t-bg text-t-text min-h-screen transition-colors duration-200 flex flex-col">

    <header id="main-header" class="sticky top-0 z-40 bg-t-bg border-b border-t-border shadow-[0_4px_20px_-4px_rgba(0,0,0,0.3)]" style="overflow:hidden;">
        <div id="header-tint" class="absolute inset-0 pointer-events-none" style="opacity:0;transition:opacity 0.3s,background 0.3s;z-index:0;"></div>
        <div class="flex items-center justify-between px-6 py-3 relative z-[1]">
            <div class="flex items-center gap-3">
                <i class="ph ph-terminal-window text-t-accent text-xl"></i>
                <h1 class="font-pixel text-t-accent text-lg tracking-wider">hyprcrd</h1>
                <span class="text-[10px] text-t-dim font-pixel ml-1">v0.1</span>
            </div>
            <div class="flex items-center gap-3">
                <button id="gallery-btn" class="flex items-center gap-2 px-2.5 py-1.5 text-xs border border-t-border text-t-muted hover:border-t-accent hover:text-t-accent transition-colors">
                    <i class="ph ph-image-square text-sm"></i><span class="font-pixel text-[10px]">images</span>
                </button>
                <button id="search-btn" class="flex items-center gap-2 px-2.5 py-1.5 text-xs border border-t-border text-t-muted hover:border-t-accent hover:text-t-accent transition-colors">
                    <i class="ph ph-magnifying-glass text-sm"></i><span class="font-pixel text-[10px]">search</span>
                    <kbd class="text-[9px] text-t-dim border border-t-border rounded px-1 py-0.5 ml-1 font-pixel">ctrl+k</kbd>
                </button>
                <button id="tasks-btn" class="flex items-center gap-2 px-2.5 py-1.5 text-xs border border-t-border text-t-muted hover:border-t-accent2 hover:text-t-accent2 transition-colors">
                    <i class="ph ph-check-square-offset text-sm"></i><span class="font-pixel text-[10px]">tasks</span>
                    <span id="tasks-open-count" class="font-pixel text-[9px] px-1.5 py-0.5 border border-t-border rounded text-t-dim">0</span>
                </button>
                <button id="add-btn" class="flex items-center gap-2 px-3 py-1.5 text-xs bg-t-accent text-t-bg border border-t-accent hover:brightness-110 transition-all">
                    <i class="ph ph-plus-square text-sm"></i><span class="font-pixel text-[11px]">new_card</span>
                </button>
            </div>
        </div>
        <div class="flex items-center px-6 pb-2 relative z-[1]">
            <div class="flex items-center gap-1 overflow-x-auto flex-1" id="bucket-bar"></div>
            <button id="sort-toggle" class="flex items-center gap-1.5 px-2 py-1 text-[10px] font-pixel text-t-dim hover:text-t-accent transition-colors shrink-0 ml-2">
                <i class="ph ph-sort-ascending text-xs"></i>
                <span id="sort-label">manual</span>
            </button>
        </div>
        <div id="group-bar" class="hidden flex items-center gap-2 px-6 pb-2 relative z-[1]"></div>
    </header>
    <div id="board" class="grid grid-cols-[repeat(auto-fill,minmax(280px,1fr))] gap-4 px-6 pt-5 pb-24"></div>

    <footer class="fixed inset-x-0 bottom-0 z-40 border-t border-t-border bg-t-bg shadow-[0_-4px_20px_-4px_rgba(0,0,0,0.3)] px-6 py-2 flex items-center justify-between gap-4">
        <div class="flex items-center gap-2 flex-wrap">
            <input type="file" id="import-file" accept=".zip,application/zip" class="hidden">
            <button id="import-btn" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-accent hover:text-t-accent transition-colors">
                <i class="ph ph-upload-simple text-sm"></i><span class="font-pixel text-[10px]">import</span>
            </button>
            <button id="export-btn" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-accent hover:text-t-accent transition-colors">
                <i class="ph ph-download-simple text-sm"></i><span class="font-pixel text-[10px]">export</span>
            </button>
            <button id="logout-btn" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors">
                <i class="ph ph-sign-out text-sm"></i><span class="font-pixel text-[10px]">logout</span>
            </button>
            <div id="theme-picker" class="theme-picker">
                <button id="theme-toggle" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-accent2 hover:text-t-accent2 transition-colors">
                    <i class="ph ph-sliders-horizontal text-sm"></i><span class="font-pixel text-[10px]">settings</span><i class="ph ph-caret-down text-[10px]"></i>
                </button>
                <div class="theme-menu bg-t-surface border border-t-border shadow-2xl p-2 min-w-[170px]">
                    <div class="font-pixel text-[9px] uppercase tracking-wider text-t-dim px-2 pb-1">theme</div>
                    <div id="theme-list" class="space-y-1"></div>
                </div>
            </div>
        </div>
        <div id="footer-count" class="font-pixel text-[10px] text-t-dim whitespace-nowrap absolute left-1/2 -translate-x-1/2"></div>
        <div class="font-pixel text-[10px] text-t-dim whitespace-nowrap">© <?= date('Y') ?> hyprcrd</div>
    </footer>

    <!-- Dialog -->
    <div class="overlay fixed inset-0 z-[90] flex justify-center items-center px-4" style="background:var(--t-overlay)" id="dialog">
        <div class="bg-t-surface border border-t-border w-full max-w-sm">
            <div class="flex items-center gap-2 px-4 py-3 border-b border-t-border">
                <i class="ph ph-warning text-t-accent text-sm"></i>
                <h2 id="dialog-title" class="font-pixel text-xs text-t-accent"></h2>
                <div class="flex-1"></div>
                <button id="dialog-close" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors">
                    <i class="ph ph-x text-sm"></i><span class="font-pixel text-[10px]">close</span>
                </button>
            </div>
            <div class="p-4 space-y-3">
                <p id="dialog-msg" class="text-xs text-t-text"></p>
                <input type="text" id="dialog-input" class="hidden w-full bg-t-bg border border-t-border text-t-bright px-3 py-2 text-sm focus:border-t-accent focus:outline-none placeholder:text-t-dim font-mono">
            </div>
            <div class="flex justify-end gap-2 px-4 py-3 border-t border-t-border">
                <button id="dialog-cancel" class="font-pixel text-[10px] px-3 py-1.5 text-xs border border-t-border text-t-muted hover:text-t-bright transition-colors">cancel</button>
                <button id="dialog-ok" class="font-pixel text-[10px] px-3 py-1.5 text-xs border border-t-accent text-t-accent hover:bg-t-accent/10 transition-colors">ok</button>
            </div>
        </div>
    </div>

    <!-- Search -->
    <div class="overlay fixed inset-0 z-[70]" style="background:var(--t-overlay)" id="search">
        <div class="bg-t-surface border border-t-border rounded-sm shadow-2xl flex flex-col absolute" style="inset:40px;">
            <div class="flex items-center gap-3 px-4 py-3 border-b border-t-border">
                <i class="ph ph-magnifying-glass text-t-accent text-base"></i>
                <input type="text" id="search-input" placeholder="search cards..." class="flex-1 bg-transparent text-t-bright text-sm placeholder:text-t-dim font-mono" autocomplete="off" spellcheck="false">
                <select id="search-bucket-filter" class="bg-t-bg border border-t-border text-t-muted text-[10px] font-pixel px-2 py-1 rounded-sm focus:border-t-accent focus:outline-none cursor-pointer"><option value="">all buckets</option></select>
                <kbd class="text-[9px] text-t-dim border border-t-border rounded px-1.5 py-0.5 font-pixel">esc</kbd>
                <button id="search-close" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors">
                    <i class="ph ph-x text-sm"></i><span class="font-pixel text-[10px]">close</span>
                </button>
            </div>
            <div class="flex flex-1 min-h-0">
                <div id="search-results" class="overflow-y-auto w-2/5 min-w-[220px] border-r border-t-border"></div>
                <div class="flex-1 overflow-y-auto p-5">
                    <div id="search-preview-empty" class="flex flex-col items-center justify-center h-full text-t-dim"><i class="ph ph-article text-3xl mb-2"></i><p class="font-pixel text-[10px]">select a card</p></div>
                    <div id="search-preview-content" class="hidden">
                        <div class="card-bar w-16 mb-4 rounded-sm" id="search-preview-color"></div>
                        <h2 id="search-preview-title" class="font-pixel text-t-bright text-sm mb-4 leading-relaxed"></h2>
                        <div id="search-preview-body" class="prose text-xs text-t-text"></div>
                        <div id="search-preview-meta" class="mt-6 pt-3 border-t border-t-border text-[10px] text-t-dim font-pixel"></div>
                    </div>
                </div>
            </div>
            <div id="search-footer" class="hidden px-4 py-2 border-t border-t-border flex items-center gap-4 text-[10px] text-t-dim font-pixel">
                <span><i class="ph ph-arrow-up text-xs"></i><i class="ph ph-arrow-down text-xs"></i> navigate</span>
                <span><i class="ph ph-arrow-elbow-down-left text-xs"></i> open</span><span>esc close</span>
            </div>
        </div>
    </div>

    <!-- Tasks -->
    <div class="overlay fixed inset-0 z-[72]" style="background:var(--t-overlay)" id="tasks">
        <div class="bg-t-surface border border-t-border rounded-sm shadow-2xl flex flex-col absolute" style="inset:54px;">
            <div class="flex items-center gap-3 px-4 py-3 border-b border-t-border">
                <i class="ph ph-check-square-offset text-t-accent2 text-base"></i>
                <h2 class="font-pixel text-xs text-t-accent2">global_tasks</h2>
                <div class="flex-1"></div>
                <select id="tasks-status-filter" class="bg-t-bg border border-t-border text-t-muted text-[10px] font-pixel px-2 py-1 rounded-sm focus:border-t-accent2 focus:outline-none cursor-pointer">
                    <option value="open">open</option>
                    <option value="done">done</option>
                    <option value="all">all</option>
                </select>
                <select id="tasks-bucket-filter" class="bg-t-bg border border-t-border text-t-muted text-[10px] font-pixel px-2 py-1 rounded-sm focus:border-t-accent2 focus:outline-none cursor-pointer">
                    <option value="">all buckets</option>
                    <option value="none">unsorted</option>
                </select>
                <button id="tasks-close" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors">
                    <i class="ph ph-x text-sm"></i><span class="font-pixel text-[10px]">close</span>
                </button>
            </div>
            <div id="tasks-summary" class="px-4 py-2 border-b border-t-border text-[10px] text-t-dim font-pixel"></div>
            <div id="tasks-list" class="flex-1 overflow-y-auto"></div>
        </div>
    </div>

    <!-- Detail -->
    <div class="overlay fixed inset-0 z-[75]" style="background:var(--t-overlay)" id="detail">
        <div class="bg-t-surface border border-t-border flex absolute" style="inset:40px;">
            <!-- Group sidebar (hidden for single cards) -->
            <div id="detail-sidebar" class="hidden w-56 shrink-0 border-r border-t-border flex flex-col">
                <div class="px-3 py-3 border-b border-t-border flex items-center gap-2">
                    <i class="ph ph-stack text-t-accent text-sm"></i>
                    <span class="font-pixel text-[10px] text-t-accent">group</span>
                    <span id="detail-sidebar-count" class="font-pixel text-[9px] text-t-dim ml-auto"></span>
                </div>
                <div id="detail-sidebar-list" class="flex-1 overflow-y-auto"></div>
            </div>
            <!-- Main content -->
            <div class="flex-1 flex flex-col min-w-0">
                <div class="card-bar w-full shrink-0" id="detail-color"></div>
                <div id="detail-controls" class="absolute top-4 right-4 flex gap-2 z-10">
                    <button id="detail-edit" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-accent2 hover:text-t-accent2 transition-colors">
                        <i class="ph ph-pencil-simple text-sm"></i><span class="font-pixel text-[10px]">edit</span>
                    </button>
                    <button id="detail-delete" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors">
                        <i class="ph ph-trash text-sm"></i><span class="font-pixel text-[10px]">del</span>
                    </button>
                    <button id="detail-zen" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-accent hover:text-t-accent transition-colors" title="zen mode">
                        <i class="ph ph-corners-out text-sm"></i>
                    </button>
                    <button id="detail-close" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors">
                        <i class="ph ph-x text-sm"></i><span class="font-pixel text-[10px]">close</span>
                    </button>
                </div>
                <div id="detail-scroll" class="p-6 pt-5 flex-1 overflow-y-auto">
                    <h2 id="detail-title" class="font-pixel text-t-bright text-lg mb-4 pr-32 leading-relaxed"></h2>
                    <div id="detail-body" class="prose text-sm text-t-text"></div>
                    <div id="detail-backlinks" class="hidden mt-6 pt-4 border-t border-t-border">
                        <div class="font-pixel text-[10px] text-t-dim mb-2 flex items-center gap-1.5"><i class="ph ph-arrow-bend-left-up text-xs"></i> referenced_by</div>
                        <div id="detail-backlinks-list" class="flex flex-wrap gap-2"></div>
                    </div>
                    <div id="detail-meta" class="mt-8 pt-4 border-t border-t-border text-[11px] text-t-dim font-pixel"></div>
                </div>
            </div>
        </div>
    </div>

    <div id="link-ac" class="fixed z-[80] bg-t-surface border border-t-border shadow-xl max-h-48 overflow-y-auto hidden" style="min-width:220px;max-width:360px;"></div>

    <!-- Gallery -->
    <div class="overlay fixed inset-0 z-[72]" style="background:var(--t-overlay)" id="gallery">
        <div class="bg-t-surface border border-t-border rounded-sm shadow-2xl flex flex-col absolute" style="inset:40px;">
            <div class="flex items-center gap-3 px-4 py-3 border-b border-t-border shrink-0">
                <i class="ph ph-images text-t-accent text-base"></i>
                <h2 class="font-pixel text-xs text-t-accent">images</h2>
                <span id="gallery-count" class="font-pixel text-[9px] text-t-dim"></span>
                <div class="flex-1"></div>
                <button id="gallery-close" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors">
                    <i class="ph ph-x text-sm"></i><span class="font-pixel text-[10px]">close</span>
                </button>
            </div>
            <div id="gallery-grid" class="flex-1 overflow-y-auto p-4 grid grid-cols-[repeat(auto-fill,minmax(140px,1fr))] gap-3 content-start"></div>
        </div>
    </div>

    <!-- Context menu -->
    <div id="ctx-menu" class="fixed z-[85] bg-t-surface border border-t-border shadow-2xl hidden" style="min-width:180px;">
        <div id="ctx-items" class="py-1"></div>
        <div id="ctx-colors" class="hidden px-3 py-2 border-t border-t-border">
            <div class="flex flex-wrap gap-1.5" id="ctx-color-grid"></div>
        </div>
        <div id="ctx-buckets" class="hidden border-t border-t-border py-1"></div>
        <div id="ctx-members" class="hidden border-t border-t-border py-1 max-h-48 overflow-y-auto"></div>
    </div>

    <!-- Editor -->
    <div class="overlay fixed inset-0 z-[60]" style="background:var(--t-overlay)" id="modal">
        <div class="bg-t-surface border border-t-border flex flex-col absolute" style="inset:40px;">
            <div class="flex items-center justify-between px-4 py-2.5 border-b border-t-border shrink-0">
                <div class="flex items-center gap-3"><i class="ph ph-file-plus text-t-accent text-sm"></i><h2 id="modal-title" class="font-pixel text-xs text-t-accent">new_card</h2></div>
                <div class="flex items-center gap-2">
                    <button id="modal-cancel" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-danger hover:text-t-danger transition-colors"><i class="ph ph-x text-sm"></i><span class="font-pixel text-[10px]">close</span></button>
                    <button id="modal-save" class="flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-accent text-t-accent hover:bg-t-accent/10 transition-colors"><i class="ph ph-floppy-disk text-sm"></i><span class="font-pixel text-[10px]">save</span></button>
                </div>
            </div>
            <div class="flex items-center gap-3 px-4 py-2.5 border-b border-t-border shrink-0">
                <input type="text" id="inp-title" placeholder="> title..." class="flex-1 bg-transparent border-none text-t-bright text-base font-bold focus:outline-none placeholder:text-t-dim font-pixel">
                <select id="inp-bucket" class="bg-t-bg border border-t-border text-t-muted text-[10px] font-pixel px-2 py-1 rounded-sm focus:border-t-accent focus:outline-none cursor-pointer"><option value="">no bucket</option></select>
                <div id="color-presets" class="flex gap-1.5 shrink-0"></div>
                <input type="hidden" id="inp-color" value="#38bdf8">
            </div>
            <div class="flex items-center gap-1 px-4 py-1.5 border-b border-t-border shrink-0" id="md-toolbar">
                <button data-md="heading" title="Heading" class="toolbar-btn"><i class="ph ph-text-h text-sm"></i></button>
                <button data-md="bold" title="Bold" class="toolbar-btn"><i class="ph ph-text-bolder text-sm"></i></button>
                <button data-md="italic" title="Italic" class="toolbar-btn"><i class="ph ph-text-italic text-sm"></i></button>
                <button data-md="strikethrough" title="Strikethrough" class="toolbar-btn"><i class="ph ph-text-strikethrough text-sm"></i></button>
                <div class="w-px h-4 bg-t-border mx-1"></div>
                <button data-md="code" title="Code" class="toolbar-btn"><i class="ph ph-code text-sm"></i></button>
                <button data-md="codeblock" title="Code block" class="toolbar-btn"><i class="ph ph-code-block text-sm"></i></button>
                <div class="w-px h-4 bg-t-border mx-1"></div>
                <button data-md="ul" title="List" class="toolbar-btn"><i class="ph ph-list-bullets text-sm"></i></button>
                <button data-md="ol" title="Numbered" class="toolbar-btn"><i class="ph ph-list-numbers text-sm"></i></button>
                <button data-md="quote" title="Quote" class="toolbar-btn"><i class="ph ph-quotes text-sm"></i></button>
                <button data-md="todo" title="Todo" class="toolbar-btn"><i class="ph ph-check-square text-sm"></i></button>
                <div class="w-px h-4 bg-t-border mx-1"></div>
                <button data-md="link" title="Link" class="toolbar-btn"><i class="ph ph-link text-sm"></i></button>
                <button data-md="cardlink" title="Card ref [[" class="toolbar-btn"><i class="ph ph-arrow-square-out text-sm"></i></button>
                <button data-md="hr" title="Divider" class="toolbar-btn"><i class="ph ph-minus text-sm"></i></button>
                <div class="flex-1"></div>
                <button id="toggle-preview" class="toolbar-btn flex items-center gap-1.5 px-2"><i class="ph ph-eye text-sm"></i><span class="font-pixel text-[9px]">preview</span></button>
            </div>
            <div class="flex flex-1 min-h-0">
                <textarea id="editor-body" placeholder="> write markdown..." class="flex-1 bg-t-bg text-t-text text-sm p-4 font-mono leading-relaxed placeholder:text-t-dim border-none min-h-full overflow-y-auto"></textarea>
                <div id="editor-preview" class="flex-1 border-l border-t-border bg-t-bg p-4 overflow-y-auto hidden"><div id="preview-content" class="prose text-sm text-t-text"></div></div>
            </div>
        </div>
    </div>

    <script type="module" src="js/app.js?v=<?= time() ?>"></script>
</body>
</html>