:root { --craft-blue: #2d89c8; --bg-light: #f8f9fa; --code-bg: #282c34; }
body { background-color: var(--bg-light); font-family: 'Segoe UI', sans-serif; min-height: 100vh; display: flex; flex-direction: column; }

/* Navbar */
.navbar { background: white; box-shadow: 0 2px 10px rgba(0,0,0,0.05); padding: 0.8rem 0; }
.navbar-brand img { max-height: 45px; width: auto; }
.nav-link { font-weight: 500; color: #555; }
.nav-link:hover { color: var(--craft-blue); }
.nav-link.active { color: var(--craft-blue); font-weight: 700; }

/* Cards e Editores */
.card-tool { border: none; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); height: 100%; display: flex; flex-direction: column; background: white;}
.card-header-tool { background: white; border-bottom: 1px solid #eee; padding: 15px; border-radius: 12px 12px 0 0; font-weight: 600; display: flex; justify-content: space-between; align-items: center; }

.card-output { border-top: 4px solid var(--craft-blue); }

.btn-back { text-decoration: none; color: #666; display: inline-flex; align-items: center; margin-bottom: 1rem; }
.btn-back:hover { color: var(--craft-blue); }
    
/* Tool Styles */
.card-custom { border: none; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.05); border-top: 5px solid var(--craft-blue); }
.result-box { background-color: #eef7fc; padding: 20px; border-radius: 8px; margin-top: 20px; display: none; border: 1px dashed var(--craft-blue); }
.btn-back { text-decoration: none; color: #666; display: inline-flex; align-items: center; margin-bottom: 1rem; }
.btn-back:hover { color: var(--craft-blue); }

footer { margin-top: auto; text-align: center; padding: 20px; color: #999; font-size: 0.85rem; }