* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, system-ui, sans-serif;
}

body {
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.tool-container {
    max-width: 700px;
    width: 100%;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 40px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.8);
    color: #f1f5f9;
}

.tool-header {
    margin-bottom: 2rem;
    text-align: center;
}

.tool-header .back-link {
    display: inline-block;
    color: #94a3b8;
    text-decoration: none;
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: color 0.2s;
}

.tool-header .back-link:hover {
    color: #60a5fa;
}

.tool-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tool-header h1 i {
    margin-right: 0.5rem;
    background: none;
    -webkit-text-fill-color: #60a5fa;
}

.tool-header p {
    color: #cbd5e1;
    font-size: 1.1rem;
}

.tool-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-weight: 600;
    color: #e2e8f0;
    font-size: 1rem;
}

.cep-input-wrapper {
    display: flex;
    gap: 0.5rem;
}

.cep-input-wrapper input {
    flex: 1;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: 0.8rem 1rem;
    color: white;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.cep-input-wrapper input:focus {
    border-color: #60a5fa;
}

.cep-input-wrapper input::placeholder {
    color: #475569;
}

.btn-search {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border: none;
    color: white;
    font-weight: 600;
    padding: 0 1.5rem;
    border-radius: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}

.btn-search:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -8px #3b82f6aa;
}

.input-group small {
    color: #94a3b8;
    font-size: 0.85rem;
}

.result-area {
    background: rgba(0,0,0,0.2);
    border-radius: 24px;
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.05);
    animation: fadeIn 0.3s ease;
}

.loading {
    text-align: center;
    padding: 1rem;
    color: #94a3b8;
    font-size: 1.1rem;
}

.loading i {
    margin-right: 0.5rem;
}

#resultContent h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #34d399;
    margin-bottom: 1rem;
}

.address-card {
    background: rgba(255,255,255,0.02);
    border-radius: 16px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.address-row {
    display: flex;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.address-row:last-child {
    border-bottom: none;
}

.address-label {
    width: 100px;
    color: #94a3b8;
    font-weight: 500;
}

.address-value {
    flex: 1;
    color: #f1f5f9;
    font-weight: 500;
}

.btn-clear {
    background: #334155;
    border: none;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    transition: background 0.2s;
    width: 100%;
    justify-content: center;
}

.btn-clear:hover {
    background: #475569;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 16px;
    padding: 1rem;
    color: #f87171;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: fadeIn 0.3s ease;
}

.error-message i {
    font-size: 1.2rem;
}

.info-box {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(255,255,255,0.02);
    border-radius: 24px;
    border-left: 4px solid #60a5fa;
}

.info-box h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #e2e8f0;
    margin-bottom: 1rem;
}

.info-box p {
    color: #cbd5e1;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.info-box ul {
    list-style: none;
    margin-top: 1rem;
}

.info-box ul li {
    color: #94a3b8;
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-box ul li i {
    color: #60a5fa;
    width: 20px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
    .tool-container {
        padding: 1.5rem;
    }
    .tool-header h1 {
        font-size: 1.8rem;
    }
    .cep-input-wrapper {
        flex-direction: column;
    }
    .btn-search {
        padding: 0.8rem;
        justify-content: center;
    }
    .address-row {
        flex-direction: column;
        gap: 0.2rem;
    }
    .address-label {
        width: auto;
    }
}