/* ==========================================================
   Araçlarım - Ultra Modern, Açık/Kapalı Tema & Hata Giderilmiş CSS
   ========================================================== */

/* 1. KÖK DEĞİŞKENLER VE AÇIK TEMA (LIGHT MODE) */
:root {
    --font-heading: 'Outfit', system-ui, -apple-system, sans-serif;
    --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    
    --bg-main: #f4f7fb;
    --bg-surface: #ffffff;
    --bg-surface-secondary: #f8fafc;
    --bg-surface-hover: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    
    --primary: #4f46e5;
    --primary-light: #e0e7ff;
    --primary-border: #c7d2fe;
    --primary-gradient: linear-gradient(135deg, #4f46e5, #7c3aed);
    
    --success: #10b981; --warning: #f59e0b; --danger: #f43f5e;
    --border-color: rgba(226, 232, 240, 0.8);
    
    --radius-sm: 12px; --radius-md: 20px; --radius-lg: 32px; --radius-full: 9999px;
    --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 30px -5px rgba(15, 23, 42, 0.08);
    --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.4);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. KARANLIK TEMA (DARK MODE) DEĞİŞKENLERİ */
[data-theme="dark"] {
    --bg-main: #0b0f19;
    --bg-surface: #111827;
    --bg-surface-secondary: #1f2937;
    --bg-surface-hover: #374151;
    
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --primary-light: rgba(79, 70, 229, 0.2);
    --shadow-md: 0 10px 30px -5px rgba(0, 0, 0, 0.5);
}

/* 3. TEMEL SIFIRLAMA */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font-body); background-color: var(--bg-main); color: var(--text-primary);
    line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; overflow-x: hidden; transition: background-color 0.4s, color 0.4s;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
button, input, select, textarea { font-family: inherit; }

/* 4. HEADER & NAVİGASYON */
.site-header {
    background: var(--bg-surface); border-bottom: 1px solid var(--border-color);
    position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow-sm);
}
.header-container { max-width: 1240px; margin: 0 auto; padding: 1rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.logo { display: flex; align-items: center; gap: 0.8rem; font-family: var(--font-heading); font-weight: 800; font-size: 1.5rem; color: var(--text-primary); }
.logo-icon { width: 44px; height: 44px; border-radius: var(--radius-full); background: var(--primary-gradient); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; box-shadow: var(--shadow-glow); }

.header-search-wrapper { position: relative; flex: 1; max-width: 450px; }
.header-search-input { width: 100%; padding: 0.8rem 2.5rem; border: 2px solid var(--border-color); border-radius: var(--radius-full); background-color: var(--bg-surface-secondary); color: var(--text-primary); transition: var(--transition); }
.header-search-input:focus { border-color: var(--primary); outline: none; }
.search-icon { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--primary); }
.search-badge { display: none; }
.quick-search-dropdown { position: absolute; top: 100%; left: 0; width: 100%; background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-md); box-shadow: var(--shadow-md); z-index: 105; padding: 1rem; }
.quick-search-dropdown.hidden { display: none; }

.nav-menu { display: flex; align-items: center; gap: 0.5rem; }
.nav-link { display: flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1.2rem; border-radius: var(--radius-full); font-weight: 600; color: var(--text-secondary); }
.nav-link:hover, .nav-link.active { background: var(--primary-gradient); color: #fff; }

/* 5. MOBİL MENÜ DÜZELTMESİ (GÖRÜNTÜYÜ BOZAN HATA BURADA ÇÖZÜLDÜ) */
.mobile-toggle-btn { display: none; background: none; border: none; font-size: 2rem; color: var(--primary); cursor: pointer; }
.mobile-drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 199; opacity: 0; pointer-events: none; transition: var(--transition); }
.mobile-drawer-overlay.active { opacity: 1; pointer-events: auto; }
.mobile-drawer { position: fixed; top: 0; right: 0; bottom: 0; width: 300px; background: var(--bg-surface); z-index: 200; transform: translateX(100%); transition: transform 0.3s; box-shadow: -4px 0 20px rgba(0,0,0,0.2); display: flex; flex-direction: column; }
.mobile-drawer.active { transform: translateX(0); }
.mobile-drawer-header { padding: 1.5rem; display: flex; justify-content: space-between; border-bottom: 1px solid var(--border-color); }
.mobile-drawer-body { padding: 1.5rem; overflow-y: auto; display: flex; flex-direction: column; gap: 1rem; }
.drawer-close-btn { background: none; border: none; font-size: 1.5rem; color: var(--text-primary); cursor: pointer; }
.drawer-nav-item { padding: 0.8rem; display: flex; gap: 0.8rem; color: var(--text-primary); font-weight: 600; border-radius: var(--radius-sm); }
.drawer-nav-item:hover { background: var(--primary-light); color: var(--primary); }
.mobile-search-box input { width: 100%; padding: 0.8rem; border-radius: var(--radius-sm); border: 1px solid var(--border-color); background: var(--bg-surface-secondary); color: var(--text-primary); }

/* 6. ANA İÇERİK & HERO */
.content-container { max-width: 1240px; margin: 0 auto; padding: 3rem 1.5rem; }
.hero-section { text-align: center; padding: 5rem 1.5rem; border-bottom: 1px solid var(--border-color); background: radial-gradient(circle, var(--bg-surface-secondary) 0%, var(--bg-main) 100%); }
.hero-badge { display: inline-block; background: var(--bg-surface); padding: 0.5rem 1.5rem; border-radius: var(--radius-full); font-weight: 700; color: var(--primary); margin-bottom: 1.5rem; border: 1px solid var(--border-color); }
.hero-title { font-family: var(--font-heading); font-size: 3rem; font-weight: 800; color: var(--text-primary); margin-bottom: 1rem; }
.hero-title span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { color: var(--text-secondary); max-width: 600px; margin: 0 auto 2rem; font-size: 1.1rem; }
.hero-search-box { position: relative; max-width: 600px; margin: 0 auto; }
.hero-search-input { width: 100%; padding: 1.2rem 1.5rem 1.2rem 3.5rem; border-radius: var(--radius-full); border: 2px solid var(--border-color); font-size: 1.1rem; background: var(--bg-surface); color: var(--text-primary); }
.hero-search-icon { position: absolute; left: 1.5rem; top: 50%; transform: translateY(-50%); color: var(--primary); font-size: 1.2rem; }
.hero-features { display: flex; justify-content: center; gap: 1.5rem; flex-wrap: wrap; margin-top: 2rem; font-weight: 600; color: var(--text-secondary); }

/* 7. KATEGORİ VE ARAÇ KARTLARI */
.section-block { margin-bottom: 4rem; }
.section-title { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 800; margin-bottom: 1.5rem; color: var(--text-primary); }
.categories-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.category-card, .tool-card {
    background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.5rem; box-shadow: var(--shadow-sm); transition: var(--transition);
}
.category-card:hover, .tool-card:hover { transform: translateY(-5px); border-color: var(--primary); box-shadow: var(--shadow-md); }
.category-card { display: flex; align-items: center; gap: 1rem; }
.category-card-icon { width: 50px; height: 50px; background: var(--bg-surface-secondary); color: var(--primary); border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; }
.category-card-title { font-weight: 800; color: var(--text-primary); }
.category-card.active { border-color: var(--primary); background: var(--primary-light); }

.tool-card { display: flex; flex-direction: column; justify-content: space-between; }
.tool-icon-box { width: 50px; height: 50px; border-radius: var(--radius-md); background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 1rem; }
.tool-title { font-weight: 800; font-size: 1.2rem; margin-bottom: 0.5rem; font-family: var(--font-heading); color: var(--text-primary); }
.tool-desc { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1rem; }
.tool-footer { display: flex; justify-content: space-between; align-items: center; border-top: 1px dashed var(--border-color); padding-top: 1rem; }
.tool-category-badge { background: var(--bg-surface-secondary); padding: 0.3rem 0.8rem; border-radius: var(--radius-full); font-size: 0.8rem; color: var(--text-muted); }
.tool-action-link { color: var(--primary); font-weight: 700; }

/* 8. ÇALIŞMA ALANI & FORMLAR */
.tool-workspace-layout { display: grid; grid-template-columns: 1fr 350px; gap: 2rem; }
@media (max-width: 992px) { .tool-workspace-layout { grid-template-columns: 1fr; } }
.tool-main-card, .sidebar-card { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-md); }
.form-group { margin-bottom: 1.2rem; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.form-label { display: block; font-weight: 700; margin-bottom: 0.5rem; color: var(--text-primary); }
.form-control, .form-select { width: 100%; padding: 1rem; border: 2px solid var(--border-color); border-radius: var(--radius-sm); background: var(--bg-surface-secondary); color: var(--text-primary); }
.form-control:focus, .form-select:focus { outline: none; border-color: var(--primary); }
textarea.form-control { min-height: 120px; }
.input-with-addon { display: flex; }
.input-with-addon .form-control { border-top-right-radius: 0; border-bottom-right-radius: 0; border-right: 0; }
.input-addon { background: var(--bg-surface-hover); border: 2px solid var(--border-color); padding: 1rem; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--primary); font-weight: bold; }
.btn { padding: 0.8rem 1.5rem; border-radius: var(--radius-full); font-weight: 700; border: none; cursor: pointer; display: inline-flex; gap: 0.5rem; align-items: center; transition: var(--transition); color: #fff; }
.btn-primary { background: var(--primary-gradient); }
.btn-secondary { background: var(--bg-surface-hover); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.result-box { background: var(--bg-surface-secondary); border: 2px dashed var(--primary); padding: 2rem; border-radius: var(--radius-lg); margin-top: 2rem; text-align: center; }
.result-value-large { font-size: 2.5rem; font-weight: 800; color: var(--primary); }
.result-grid-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin-top: 1rem; }
.stat-card { background: var(--bg-surface); padding: 1rem; border-radius: var(--radius-md); border: 1px solid var(--border-color); }
.stat-label { font-size: 0.8rem; font-weight: bold; color: var(--text-muted); }
.stat-value { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); }

/* 9. BREADCRUMB & FOOTER */
.tool-page-header { background: var(--bg-surface); padding: 2rem 1.5rem; border-bottom: 1px solid var(--border-color); }
.breadcrumb-nav { display: flex; gap: 0.5rem; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1rem; }
.tool-header-content { display: flex; align-items: center; gap: 1rem; }
.tool-header-icon { width: 64px; height: 64px; background: var(--primary-gradient); color: #fff; border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; font-size: 2rem; }
.site-footer { background: var(--bg-surface); border-top: 1px solid var(--border-color); padding: 4rem 1.5rem 2rem; margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; max-width: 1240px; margin: 0 auto; }
.footer-bottom { border-top: 1px solid var(--border-color); padding-top: 2rem; text-align: center; color: var(--text-muted); margin-top: 2rem; }

/* 10. RESPONSIVE DÜZENLEMELER */
@media (max-width: 992px) {
    .header-search-wrapper { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-menu { display: none; }
    .mobile-toggle-btn { display: block; }
    .hero-title { font-size: 2.2rem; }
    .footer-grid { grid-template-columns: 1fr; }
}